Effect of quenching on microstructure. 9 °C/s, the dimples became smaller.
Effect of quenching on microstructure %) low density steel plates via intercritical quenching-annealing process were investigated through field-emission scanning electron microscopy, electron backscatter diffraction, X-ray diffraction, and tensile tests. The results reveal that the BBSZA/Al 2 O 3 composite obtained by quenching free method has smaller pores and superior performance Aug 3, 2021 · The effects of quenching temperature on the microstructure and mechanical properties of the hot-galvanized quenching and partitioning (Q&P) steel were elucidated in this work. 51Si steel consists of ferrite, M1, RA and M/A islands. Nov 1, 2024 · Over recent decades, researchers have conducted thorough investigations into the impact of various quenching protocols on the microstructure of Al–Mg–Si alloys [15], with a particular focus on the influence of cooling rates [13, [16], [17], [18]]. Sep 21, 2022 · The cooling properties of different cooling mediums were studied and heat treatment of high chromium cast iron was carried out by different cooling mediums. Soc. The process of direct quenching after hot rolling which replaced the steps of coiling and cold rolling was termed as compact process. As the temperature before direct Feb 27, 2020 · H13 steel is a typical hot work die steel with good strength and toughness that is often used to manufacture high-temperature disk springs. When the tempering temperature is increased from 550 to 630 °C, the number and size of the carbides also increase. 06C high specific strength steel were studied. Jan 1, 2025 · The microstructure of Q&P treated Fe-0. The effect of cooling rate changes caused by the quenching medium on the microstructure of steel materials should be clarified. 8% with increasing of the quenching temperature, respectively. Mar 1, 2023 · After oil quenching (Z, Fig. conclusion as below: Nov 18, 2024 · Subsequently, a partitioning temperature of 650 °C is set and maintained for an additional period of 30 min before water-quenching to room temperature. 46Ni–0. 32, Iss. However, when the solution Sep 28, 2015 · However, the effect of quenching process on the microstructure and properties of HMSS is rarely reported. Three groups of samples were quenched continuously with three fixed cooling rates, respectively, then subjected to a creep test under a constant load of 690 MPa at 700°C. It was found that primary martensite and retained austenite (RA) were obtained at the quenching temperature of 140–180 °C, while primary martensite, RA and secondary martensite were obtained when the quenching temperature was 220–300 °C. 46Ni-0. Quenching conditions play an important role in performance enhancement. 70 Mn, 1. of direct quenching on the microstructure and mechanical properties of HSLA-100. The influence of DQ on microstructural evolution and strengthening mechanisms of these two types of steel was investigated. Consequently, strength higher than that of conventional TRIP steels could be obtained due to the presence of martensite instead of bainite. Feb 1, 2020 · In this paper, quenching from different holding temperature were executed to achieve a good balance between strength and ductility as well as mechanical requirement of mechanical properties for biomedical applications. 6 °C/s and 2431. 0Mn-0. The relationships and corresponding interaction mechanisms between cooling rate, microstructure, and mechanical properties of an 51CrV4 steel is extensively used in large-size damping springs for trains and vehicles. 1007/BF00367570 View in Scopus Google Scholar Sep 27, 2022 · The automobile covering parts mold is a key piece of equipment in the automobile industry, and its drawbead is the core element that affects the life of the mold and the quality of the parts made. e. 2 b). Reasonable and satisfactory heat treatments should be investigated and applied to acquire the required high strength and superior low-temperature toughness, since this is deemed an Mar 5, 2021 · [20] Arun K, Kumar S V, Kumar S A, Kumar B S, Santosh K and Kuttanellore M 2018 Effect of quenching and partitioning on the microstructure and mechanical properties of a medium carbon low alloy low silicon(0. 26 C, 1. Jun 3, 2024 · 4. 5 a, b and Fig. Apr 12, 2019 · The effect of cooling rate during quenching on the microstructure and creep property of nickel-based superalloy FGH96 was investigated. 94 Cu, 0. [15] studied eects of twice Mar 1, 2021 · In this paper, the effect of different austenitizing temperatures and time, as well as different holding pressure and partitioning temperatures and time on the microstructure evolution and Oct 31, 2016 · The 20CrNi2Mo steel was used to study the effect of quenching temperature on the microstructure and the properties of strength and toughness of the lath martensite. 06C–0. The grain size and hardness measurements proved that austenitizing Aug 1, 2024 · The cross-sectional microstructures, phase compositions, tensile mechanical properties, and fracture morphology of the coatings were analyzed at different water-quenching temperatures to reveal the effects of different water-quenching temperatures on the properties of the IN718 fusion-coated coatings in the heat treatment process. 0769 Aug 1, 2013 · The effect of direct quenching on the microstructure and mechanical properties was investigated in detail by using optical microscope, transmission electron microscope and scanning electron Effect of quenching and tempering on microstructure and mechanical properties of 410 and 410 Ni martensitic stainless steels Mirzaee, Masoud; Momeni, Amir; Aieni, Niloofar; Keshmiri, Hamid. May 26, 2022 · The construction of heavy polar icebreakers is usually done with special hull steels, which require comprehensive properties such as good low-temperature toughness, high strength, and superior fatigue resistance. 1 V, Bal. Therefore, the effects of the quenching and tempering temperatures on the microstructure and mechanical properties of H13 steel after quenching and tempering processes are annealing (17%). Ultrahigh strength and considerable ductility were achieved at a suitable tempering temperature. In this work, we treated solid solution MAR-M247 alloys with water quenching, air cooling, and furnace cooling. Journal of Materials Research ; Warrendale Vol. This study explored the effects of high quenching rates on the grain boundary microstructures and mechanical properties of an Al-Mg-Si-Cu alloy. Feb 1, 2021 · The effect of hot deformation on microstructure and quenching-induced precipitation behavior of an Al-Zn-Mg-Cu alloy 7055 was investigated by electron backscattered diffraction (EBSD), transmission electron microscope (TEM), high resolution transmission electron microscope (HRTEM) and scanning transmission electron microscope (STEM). 4% and 27. Aug 1, 2024 · To explore the effect of quenching temperature on the microstructure and mechanical properties of W-5Ni-2Cu, the bars were held on the mixture gas of N 2 and H 2 at 1000∼1300 °C for 1 h and then oil-cooled. The results show that martensite structure occurs when the quenching temperature is 760°C, and the volume fraction of martensite is 32% when the quenching temperature is 780°C. Res. The H-HSS sample presents the characteristics of the powder prior to Feb 1, 2016 · Quenching and partitioning (Q&P) treatment can effectively retain a significant amount of austenite in the 0. 59 Nov 5, 2021 · In this study, the effects of different (online quenching and offline quenching) quenching methods and aging processes (T6 and T73) on the crashworthiness and microstructural evolution of three Al–Zn–Mg alloys (G1–G3) were studied by conducting tensile test and axial compression tests at room temperature, combined with optical metallography, electron back scattered diffraction, and Apr 25, 2023 · The study focused on the effect of quenching and quenching-tempering processes on the microstructure, hardness, impact toughness and wear resistance of Fe-based/B 4 C composite coating on the surface of ASTM 1045 steel by vacuum cladding. 21C-0. The Vickers Jun 27, 2023 · The effect of tempering temperature on microstructure and mechanical properties of high-strength medium-thickness steel plate was studied by rolling + relaxation + online quenching + tempering process. the effect of residual stress on precipitation was discussed, the effect of cooling rate was ignored. 2112 - 2118 View in Scopus Google Scholar ISSN 1517-7076 artigos e-12453, 2019 Corresponding Author: Fu Han-guang Received on: 23/01/2018 Accepted on: 03/03/2019 10. The results show that the microstructure of cast high boron steel with different contents of boron is composed of pearlite, ferrite and eutectic boride, which has lower hardness May 6, 2024 · Heat treatment plays a decisive role in the microstructure of metallic materials. 1590/S1517-707620190003. 3C (wt. Microstructure obtained through different heat treatment and quenching processes a) UT b) WA c) CA d) AA e) WST f) CST g) AST. Hardness and wear resistance of AB-HSS at different quenching temperatures were tested Dec 7, 2022 · The effect of uphill quenching on hardness was discussed. Compared with the peak-aged WC alloy, the number The effect of the intercritical temperature on the microstructure and mechanical properties of a newly developed quenching and partitioning steel using martensitic microstructure prior to the heat treatment process was studied. 3, (Feb 14, 2017): 687-696. 9. 6 b, Table 3 ), and the formation of retained austenite grains with a size above 1 μm is fully suppressed Jan 1, 2022 · The influence of quenching temperature on microstructural and mechanical properties of low alloy steel of the following chemical composition: 0. The microstructure of three specimen is mainly composed of α and β phases. Long investigated the effect of quenching temperature on martensite multi-level microstructure and properties of strength and toughness in 20CrNi2Mo steel and found that the impact toughness and fracture toughness increase by 32. The variations in grain size, hardness, tensile Oct 18, 2020 · Some scholars [11,12] have explored the effect of laser welding on the microstructure and mechanical properties of quenching and partitioning steel and dual-phase steel, the softening zone inevitably appears in the heat-affected zone (HAZ) of both materials, which is attributed to the formation of tempered martensite and the softening zone is Dec 1, 2022 · The effect of quenching temperature and soaking time on the microstructure and properties of DP980 steel in the critical quenching and tempering process was studied. The results indicated that the prior austenite grains exhibit equiaxed shape in both high temperature rolling direct quenching and tempering steel (refer to as HR-DQ-T steel) and reheat quenching and tempering steel (RQ-T steel), while elongated and severe deformation Feb 1, 2023 · The effect of quenching rates after solid solution treatment, i. The transformation of austenite to ferrite surrounded the austenitizing within the temperature range of 900–1050 °C. In this study, two types of clay coating were prepared on two identical steel swords (L04 and L05) in order to explore the effects of the addition of clay on the microstructure of steel. The objective of this paper is to enhance service life of excavator bucket teeth for decreasing the idle time required to reinstate the teeth periodically during excavation process. The effects of water temperatures (20, 70 and 100 ℃) and step quenching process on the surface residual stress and mechanical properties of the 2A14 aluminum alloy were studied by ZHANG et al [14]. Xiong et al. Figures 2 and 3 show the annealed microstructure, and tempered after annealing microstructure, of EN 8 steel, respectively. Samples taken from each blade were compared using metallography, XRD tests Jul 1, 2022 · In this paper, quench-tempering (QT) and laser quenching (LQ) treatments were performed on the high-chromium cast iron to obtain better microstructure and mechanical properties. 2 c and d), the morphologies of martensite are mainly lath and needle. Clear differences in size of secondary γ′ precipitates, creep properties and Apr 20, 2019 · Microstructure and mechanical properties of a high strength low alloy steel with different quenching processes were researched. 10 Cr, 1. Fe (Wt. 26Mo) steel Mater. Aug 1, 2024 · The evolution of the microstructure of micro-alloyed 51CrMnV spring steel under the quenching and partitioning heat treatment process and its enhancement effect on the mechanical properties of spring steel were studied. 20Si–1. The C–Mn steels were heated to the soaking temperature, quenched in water and then tempered in the 100–500 °C range. Dec 12, 2010 · Low carbon multiphase high strength steel is widely used in the automobile industry. Results showed Aug 5, 2024 · (1) The quenching holding treatment eliminated the rolling deformation structure, the NiCrAlFe alloy recrystallized and a large number of twins were formed. The present work investigated the effects of various oil-bath temperatures and out-of-oil temperatures on the microstructure and the mechanical properties of this steel. 4% with decreasing quenching temperature ( Fig. With the extension of quenching holding time, the texture strength is greatly reduced, the rolling deformation texture is gradually transformed into recrystallization texture. , good formability, as a result of the TRIP effect from the retained austenite. They found that direct quenching led to higher strength values than austenitizing and then quenching. Sep 27, 2022 · Lianghua Shi studied the effects of laser quenching process parameters on the width of the melting unit of high-carbon alloy steel Cr12, and the results showed that the width of the melting unit varies with the laser process parameters, with the largest effect on the width of the unit being the amount of defocusing, followed by frequency Sep 21, 2023 · Microstructure and mechanical properties of 10Ni5CrMo steel were studied during quenching-and-tempering and a special heat treatment (QLT) consisting of sequential quenching (Q), intercritical Sep 8, 2014 · The effects of quenching and tempering on the microstructure evolution and bake hardening (BH) behavior of both ferrite and dual phase steels were investigated. Laser quenching was carried on the surface of rails by using 6 kW fiber laser. Sep 28, 2022 · In this study, the effects of pre-quenching temperature on microstructure evolution, RA stability, and mechanical properties of the Fe-1. 2 mm were heated to 900 °C for 4 min. With the increase in PAG concentration, the The aim of this study is to investigate the effect of water quenching effects on microstructure, crystal structure, hardness, and wear of gray iron, which undergoes quenching from the austenitizing temperature. The microhardness of the initial forgings and the heat-treated specimens is shown in Fig. The present study investigated and analyzed the impact of conventional heating quenching and quenching at varying heating rates on the mechanical properties, microstructure, prior austenite grain size, and second phase of low alloy Jun 6, 2018 · The experimental X100Q bainitic steel was thermally processed via quenching at 875 °C–975 °C and tempering at 650 °C, and the effects of quenching temperature, T q, on the microstructure and YS was mainly estimated. Oct 31, 2016 · The presence of retained austenite in the Q&P microstructure can leads to an interesting mechanical property i. 4. Microstructure observation is achieved by observing the samples under a microscope. Feb 1, 2021 · Quenching effect on microstructure. Oct 29, 2020 · The present work employed the X-ray diffraction, scanning electron microscopy, electron backscattered diffraction, and electron probe microanalysis techniques to identify the microstructural evolution and mechanical and abrasive behavior of high carbon steel during quenching-partitioning treatment with an aim to enhance the toughness and wear resistance of high carbon steel. The mechanical properties and Mar 1, 2022 · The spheroidization degree of carbides after spheroidizing annealing has a decisive influence on the size and distribution of undissolved carbides in quenching and tempering microstructure. The results showed that with the increase in the partitioning temperature or the extension of the partitioning time, the martensite arrangement in the Mn-Si-Cr alloy steel became irregular, and the boundary was gradually blurred; the austenite mainly Oct 7, 2020 · The effects that tempering temperatures have on ultimate tensile strength (UTS) and yield strength (YS) are presented in Fig. 5 wt. The quenching rate after solution treatment is an important factor influencing the width of PFZs in Al-Mg-Si-Cu alloy. In this study, the Jominy end quench test was adopted to investigate the effects of different Sep 22, 2023 · The microstructure, properties and deformation behavior of Fe-28. Jan 5, 2017 · In this research, the effect of austenitizing at 900–1100 °C and tempering at 250–650 °C on the microstructure and mechanical properties of 410 and 410 Ni martensitic stainless steels was investigated. % to 0. Sheets with thicknesses of 1. They were then press formed and simultaneously quench hardened with dies or water quenched. SINTEF Materials and Chemistry, NO-7465, Trondheim, Norway; 2. The effects of tempering temperature on the microstructure evolution and tensile properties were investigated. 10. In this regard, the steel studied was first subjected to two consecutive austenitization treatments at 940°C and 870°C for 45 and 30 minutes, respectively, and quenching, followed by tempering in the temperature range of 510°C to 700 Dec 7, 2022 · The microstructure and diffraction pattern of the samples treated with different uphill quenching processes was investigated by EBSD and XRD. The difference between microstructures and mechanical properties was investigated. With the increase of carbon content, it is more important to control the carbon distribution during heat treatment for HMSS. May 1, 2024 · In this study, the effects of annealing temperature on microstructure and mechanical properties of Fe–9Mn–5Al-0. , nonequilibrium boron segregation to austenite grain boundaries before quenching , the boride is usually distributed in net-like or fish-bone morphology in the solidified microstructure, which will seriously damage the continuation of the matrix, resulting in the Mar 10, 2023 · The quenching process was used to roughly simulate the hot-stamping process. It can be seen from Figure 6 that when the quenching heating temperature is 880˚C, due to the low austenitizing temperature, the amount of carbon and alloying elements dissolved into austenite is relatively small, reducing the hardenability of steel [13] [14] , In the subsequent cooling process, there was a certain Jan 28, 2022 · Additionally, the effects of four interstitial elements have been discussed; oxygen and nitrogen are noted to show significant effects on microstructure and phase transformations in β alloys, and May 15, 2020 · Different sizes of microstructure with α, β and α' + β grains were formed according to treatment and quenching processes. Nov 15, 2013 · The effect of the cooling rate on the hardness and microstructure of the hot-stamped boron steel containing 0. The results showed that the microstructure of magnesium alloy rolling plate was refined by the uphill quenching treatment, which can reduce the residual stress without decreasing the mechanical properties. The changes in microhardness, microstructure, retained austenite (RA) content, grain size, phase and elemental content of the QT and LQ samples were compared and analyzed. Jun 10, 2024 · The quench sensitivity of the corrosion and mechanical properties of an Al-Zn-Mg-Cu-Cr-Zr alloy was investigated utilizing tensile testing, intergranular corrosion experiments and microstructure characterization. 7% to 0. In this work, effect of quenching temperature on the microstructure of Al-bearing high-boron high-speed steel (AB-HSS) was investigated by means of optical microscopy, scanning electron microscopy and X-ray diffraction. 24 Mo, 0. 3C–13Cr martensitic stainless steel (MSS). A tempered sorbite microstructure with a diffuse distribution of carbides is formed after quenching and tempering treatment (Q&T, Fig. The results revealed that the metallurgical bonding was realized between the coating and steel substrate. 42 Si, 1. Eects of double quenching and tempering on other steels were also studied. The results show that the UTS value of direct-quenched steel reaches a highest value of 1073 MPa. Nov 1, 2021 · Fig. Jan 1, 2021 · The present review work is on the effect of the quenching-partitioning heat treatment technique on the alloyed medium Mn steel. 2 mm was heated up to 900°C for 4 min, it was press formed and simultaneously quench hardened with dies, or water-quenched. The effects of variations in the beta-quench parameters during the tube reduction process on the final microstructure and microchemistry of Zircaloy-2 and Zircaloy-4 cladding were studied by TEM/STEM and correlated with corrosion rates in 400 and 500°C steam autoclaves. 9 °C/s, the dimples became smaller. b-d shows the optical microstructure of the steel after quenching and partitioning at 250 °C with various holding time (10 min, 30 min, 60 min). 6 and 1. After quenching at 670 °C, the yield strength, tensile strength, elongation, and impact energy at − 20 °C of high-strength steel could reach 1002, 1240 MPa, 12%, and 148 J, respectively . 1. Aug 15, 2024 · To investigate the effect of dispersoids on the microstructure of extruded profiles, EBSD was utilized to characterize the microstructure along the normal direction of extrusions, with results displayed in Fig. 9, and the effects that tempering temperatures have on elongation (EL) and impact energy (IE) are presented in Fig. Mar 2, 2023 · The existing products are quenched by one-time water quenching, precooled at about 800°C and tempered at 200°C. China 22(2012) 1872 1877 Effect of quenching rate on microstructure and mechanical properties of commercial AA7108 aluminium alloy Ida WESTERMANN 1 , Ann Leni HAUGSTAD 2,3 , Yngve LANGSRUD 3 , Knut MARTHINSEN 2 1. However, disk springs occasionally fail after use in the petrochemical industry. Four types of different heat treatments consisting annealing at 930°C and 970 °C followed by air cooling or water quenching were considered Aug 1, 2009 · The effect of water quenching process on microstructure and tensile properties of cold rolled dual-phase (DP) steel (0. Samples of various thickness were quenched in water at Apr 18, 2022 · The effects of different partitioning temperatures and time on the microstructure and properties of Mn-Si-Cr alloy steel were investigated. 6%, under different ball diameter ratios of ∅50–∅110, it can be seen that at a smaller Dec 10, 2024 · A martensitic initial microstructure before hot forming was prepared by direct quenching after hot rolling of the hot formed steel and the effect of such initial microstructure on mechanical properties of steel was analyzed. After sheet specimen with a thickness of 1. This is the first attempt to control the mechanical properties of L-PBF-processed low magnetic Zr 1Mo alloy by heat treatment. Medium Mn steel with alloying elements gives an ultrahigh strength and a multiphase microstructure. 0Cr, 0. The morphological examination focused on both the quenched Feb 1, 2023 · The effect of quenching rates after solid solution treatment, i. 4Si–0. 17C-2. May 15, 2023 · In this work, the microstructure, microhardness and compressive mechanical properties of quenched Mg-35 wt%Sc alloy at 540 °С, 600 °С, and 630 °С were investigated. Mar 19, 2024 · In this work, two types of 590 MPa grade steels, composed of NiCrMo steel and Cu-bearing steel, were processed using traditional offline quenching and tempering and direct quenching (DQ) and tempering. The results indicate that melt quenching can suppress the growth Dec 1, 2022 · The effects of quenching medium and tempering temperature on microhardness can be transferred to the corresponding microstructure strengthening effects on the material properties. The results showed that the maximum cooling rate, cooling rate at 300 °C and the quenching liquid cooling capacity of water at 20 °C was 193. 7Mn-10. In this work, the effect of the different quenching rates on the microstructures, mechanical properties, and paint bake-hardening response of Al–Mg–Si sheets was studied. It is evident that the grain structures after extrusion of the two alloys with different quenching conditions exhibit similarities. 10 Ni, 0. Nov 15, 2021 · In the present study, the effect of the double quenching–tempering heat treatment on the mechanical properties of the HSLA-100 steel has been investigated. Oct 17, 2024 · The quench sensitivity has a great impact on the property and microstructure of aluminum alloys. Jul 7, 2022 · Hence, more research on the effect of initial quenching is needed. Apr 1, 2010 · The effects of water quenching process on the microstructure and magnetic properties of dual phase steel are studied. Arun Kumar 1, Vishnu Kumar Sharma 1, Amit Kumar Sharma 1, Sampad Kumar Biswas 1, Santosh Kumar 2 and Kuttanellore Muraleedharan 3 Mar 14, 2023 · Effect of alloying elements on the phase transformation in AHSS steels and the prediction of mechanical properties of these steels are complicated questions that require deep knowledge of the microstructure and secondary phase evolution occurring during quenching and subsequent tempering [3]. The following conclusions are summarized here. Due to the complex structure of the mold cavity for covering parts, there exist differences between material flow characteristics, load conditions, stress strain, failure forms and so on in the Effect of quenching and tempering on microstructure and mechanical properties of 410 and 410 Ni martensitic stainless steels - Volume 32 Issue 3 Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Oct 1, 2024 · Download Citation | The Effect of Quenching Process on The Microstructure and Hardness of AISI 4140 Steel | Steel is a metal that has good strength widely used in industry, both in the Sep 1, 2024 · Effect of pre-quenching on martensite-bainitic microstructure and mechanical properties of GCr15 bearing steel J Mater Sci , 28 ( 8 ) ( 1993 ) , pp. Download : Download high-res image (511KB) Download : Download full-size image; Fig. Jan 23, 2017 · In this research, the effects of annealing temperature and quenching medium on microstructure, mechanical properties as well as high cycle and low cycle fatigue behavior of Ti-6Al-4V were investigated. In the present work, the microstructure and hardness of HMSS 8Cr13MoV at different quenching conditions were studied. Fig. The results show that the microstructure of the dual phase steels mainly consisted of the ferrite and martensite phase, the martensite volume fraction increases gradually with increasing the holding and quenching temperature. 1 Effect of initial microstructure on quenching and tempering microstructure No matter with the CRA and HR specimens, polycrystalline ferrite and blocky pearlite are the initial microstructure. The water-quenched sample roughly underwent a cooling rate of 250 °C/s [ 13 , 31 ]. %) to cast as Y-blocks with wall thickness of 30 mm using medium-frequency induction Aug 1, 2024 · The Bi 2 O 3 –B 2 O 3 –SiO 2 –ZnO–Al 2 O 3 (BBSZA) glass/Al 2 O 3 composites are prepared by quenching and quenching-free methods and conducted a comparative analysis of their microstructures and properties. The laser additively manufactured 12CrNi2 is composed of major ferrite and minor austenite. The goal of Q&P heat treatment is to form a microstructure consisting of carbon-enriched austenite within a martensite matrix. 1, respectively. 1 a. 2 a) or water cooling immediately following salt bath quenching at 235 ℃(C-Q235, Fig. When the quenching rate increased to 58. 2Al-1. Nov 29, 2024 · To avoid grain coarsening resulting from high-temperature carburizing, the effects of cyclic quenching and tempering on the microstructure and mechanical properties of 18CrNiMo7-6 gear steel were investigated. The microstructure, phase composition, effect of quenching and tempering parameters, fracture morphology, and mechanical properties of the sample are discussed in detail. Nov 1, 2021 · Effect of pre-quenching on martensite-bainitic microstructure and mechanical properties of GCr15 bearing steel J Mater Sci , 28 ( 1993 ) , pp. Oct 24, 2019 · Effect of quenching and tempering temperature on microstructure and tensile properties of microalloyed ultra-high strength suspension spring steel Author links open overlay panel Kui Chen , Zhouhua Jiang , Fubin Liu , Jia Yu , Yang Li , Wei Gong , Changyong Chen Sep 9, 2021 · Effects of quenching and tempering heat treatment on microstructure, mechanical properties, and fatigue crack growth behavior of 51CrV4 spring steel Chaobin Lai 1 , Wei Huang 1 , Shengci Li 3,1 , Tao Liu 2 , Ruiguo Lv 3,2 , Xiaoyong Tang 2 and Jianlin Yu 2 Nov 13, 2024 · In order to improve strength and toughness, a useful technique for refining grain size is the application of high heating rates during the austenitizing process. Apr 12, 2023 · When quenching temperature rises to 880 °C, the variation in the matrix C content is relatively small, whereas the boundary density reduces greatly on account of a reduction in HAGBs, resulting in a lower nucleation rate of the QT-880 sample. The results showed that the density of experimental steel is about 6. 41C, 0. 6Cr-0. 23Si, 0. Three groups of samples were compared, which went through 0/1/3 times of quenching–tempering cycles after initial pseudo-carburizing. Field emission scanning electron microscope (FE-SEM) was used to observe the microstructure of the samples after 400–2000 purpose polishing and 30-s corrosion with 4% nitric acid solution. %) was investigated after applying a quenching-partitioning (Q-P) treatment. The traditional heat treatment process for martensitic steel is quenching and tempering (Q&T). In this paper, CSS-42L steel was subjected to quenching, cryogenic and tempering treatments to study the effects of different heat treatments on the microstructure, hardness, and corrosion resistance of CSS-42L steel. Simulated hot-stamping test was also carried out at various cooling rates. By means of microstructure observation, phase analysis and mechanical property tests, the effect of the quenching and tempering treatment on microstructure and mechanical properties of CSS-42L bearing steel were studied. In this work, two types of 590 MPa grade steels, composed of NiCrMo steel and Cu-bearing steel, were processed using traditional offline quenching and tempering and direct quenching (DQ) and tempering. Express 5 1–24. Apr 14, 2020 · In this study, two direct quenching processes (direct quenched temperatures are 840°C and 950°C respectively) and a reheat quenching process were applied to produce a high strength low alloyed steel. Such a quenching and partitioning process possessed Feb 22, 2019 · In order to investigate the effects of quenching temperature and cooling rate on the microstructure and mechanical properties of the U75V rail steel, Gleeble-3500 thermal simulator and tensile tester were applied and the dynamic CCT curves were obtained. 75Mn, 1. It is generally known that quenching at a temperature between A c1 and A c3 normally causes the austenite-ferrite microstructure to convert to martensite-ferrite microstructure. In this work, the effect of intercritical deformation on the partitioning of alloying elements and the evolution of microstructure, as well as the effect of retained austenite stability on mechanical properties, were studied in a low carbon steel. To achieve this goal, medium-carbon steel was chosen with a chemical composition of 0. The microstructure evolution of Q&P steels was characterized using dilatometry, SEM, EPMA, EBSD, TEM, PED and XRD, and the mechanical properties were determined by Sep 13, 2019 · Effect of quenching temperature on the microstructure and mechanical properties of 30MnBNbV hot stamping steel, Weijian Chen, Shuai Wang, Zhengzhi Zhao, Jiangtao Liang, Jie Guo Jun 1, 2024 · This puts higher requirements on its microstructure, mechanical properties, and corrosion resistance. 2 mass% carbon was investigated. Aug 13, 2023 · Precipitate free zones (PFZs) near grain boundaries generally soften alloys. % boron in the cast state and after quenching at different temperatures. 3 (a)–(e) are the microstructure of the steel with isothermal quenching for 10, 20, 60, 120 and 240 min, showing similar regularity for the content change of bainites as the steel isothermal quenched at 200 °C, and after isothermal quenching for 240 min, the microstructure of the steel is also mainly composed of bainites, as shown in Sep 5, 2018 · Effect of quenching and partitioning on the microstructure and mechanical properties of a medium carbon low alloy low silicon (0. Nov 7, 2023 · Coating a sword with a layer of clay prior to water quenching is one way to promote hardening and improve corrosion resistance. 3C–1. 30Mn) was studied using optical, transmission electron microscopy, Vicker’s hardness tester and tensile testing machine. 4Si-0. 2. Nonferrous Met. The microstructure and diffraction pattern of the samples treated with different uphill quenching processes was investigated by EBSD and XRD. The microstructure, hardness, wear resistance, and contact fatigue resistance (CFR) of the phase transformation hardening layer were studied by optical microscope (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), microhardness tester, and wear tester. Jan 1, 2024 · Quenching and tempering treatment experimentswere conducted on the bimetallic band saw blades,and theeffect of quenching and tempering processes on the microstructure and properties of the band Mar 22, 2021 · However, due to the unique characteristics of boron in the microstructure, i. Grain refinement and dislocation density increase were determined by Jun 1, 2024 · The effects of quenching and tempering treatments on the microstructure and mechanical properties of as-built 300M steel samples were studied in detail, and the relevant strengthening and toughening mechanisms were analyzed. 025Nb TRIP-aided steel were investigated. EDEM has been used to simulate the motion and distribution of the steel ball model in the semi-autogenous grinding machine (SAG) with a size of ∅8. 26Mo) steel. 23Mo (wt. China 22(2012) 47Ã52 Effect of quenching rate on microstructure and stress corrosion cracking of 7085 aluminum alloy CHEN Song-yi, CHEN Kang-hua, PENG Guo-sheng, LIANG Xin, CHEN Xue-hai State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China Received 4 January 2011; accepted 6 April 2011 Abstract: The influence of quenching Jan 28, 2022 · Effect of Nb Content and water quenching on microstructure and mechanical properties of Ti-Nb alloys fabricated by spark plasma sintering Nattawood Suesawadwanid a Department of Mechanical Engineering, King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok, Thailand View further author information Sep 13, 2023 · The synergistic effect between strontium (Sr) and melt quenching on the solidified microstructure of hypereutectic Al-Si alloys was investigated by optical and scanning electron microscopy. The strengthening mechanisms contributing to overall Sep 1, 2021 · Herein, the microstructure, mechanical properties, and fatigue crack growth (FCG) behavior of 51CrV4 spring steels under different quenching and tempering heat treatment were studied. 2112 - 2118 , 10. The influence of DQ on microstructural evolution Jan 1, 2012 · Trans. The effect of annealing time on the tensile properties and impact toughness were studied in relation to the formation of reversed transformation. [231] compared the effects of direct quenching and tempering process and conventional reheat quenching and tempering process on the microstructure and mechanical properties of a low Feb 7, 2023 · There is a dramatic effect of quenching temperature on the microstructure of the 420 alloy. Jan 19, 2023 · The microstructure and mechanical properties of a low-carbon steel produced via the quenching & partitioning (Q&P) heat treatment was investigated, with particular focus on the hole expansion Dec 12, 2018 · Effect of Quenching Conditions on the Microstructure and Mechanical Properties of 51CrV4 Spring Steel Lin Zhang 1, * , Dehai Gong 2 , Yunchao Li 1 , Xiaojun W ang 2 , Xixi Ren 1 and Engang Wang 1, * May 3, 2018 · The effect on nonthought (partial) hardening on the microstructure, hardness and mechanical properties of steel 38KhM in different conditions (after quenching and after quenching and tempering at Nov 13, 2017 · In order to investigate the effect of microstructural characterization on the mechanical properties and retained austenite stability, a different type of quenching and partitioning steel (I-Q&P) through intercritical annealing before the quenching and partitioning process was designed, which can realize lamellar intercritical microstructure compared to the conventional quenching and Feb 20, 2024 · Heat treatment is an important process for optimizing the microstructures of superalloys, and the cooling rate after solid solution treatment is one of the most critical parameters. 1 wt. Aug 1, 2024 · The cross-sectional microstructures, phase compositions, tensile mechanical properties, and fracture morphology of the coatings were analyzed at different water-quenching temperatures to reveal the effects of different water-quenching temperatures on the properties of the IN718 fusion-coated coatings in the heat treatment process. 10Mn-0. Sep 1, 2024 · An ultra-low carbon and low nickel medium manganese heavy steel plates was fabricated by quenching and intercritical annealing process. 01 °C/s. It can be seen in this figure that the microhardness of the heat-treated This article investigates the change rule of the microstructure, hardness and wear resistance of high boron steel containing 0. May 27, 2024 · In this study, high-carbon Nb microalloyed hot rolled steel plates are subjected to quenching and partitioning (Q&P) treatment at different temperatures and time durations. Dec 1, 2012 · Duan et al. Large dimples form on the fracture surface of a sample at a quenching rate of 0. Few studies have been conducted to systematically investigate the effect of the variation of Nb content on the microstructure and mechanical properties of the quaternary Ti–Nb–Zr–Sn alloy. The research results indicated that, with a decrease in quenching rate, quenching precipitates sequentially nucleated non-uniformly at grain boundaries (GBs) (η phase), E phase (η Jan 13, 2022 · A lot of research on the microstructure and mechanical properties of Fe-C martensite steel has been investigated [[1], [2], [3], [4]]. Initially, during quenching, the microstructure comprised ferrite, martensite, and RA. Microstructure characterization, hardness, and room temperature tensile tests were conducted to Jan 1, 1993 · In order to improve the strength and toughness of steel GCr15 (52100), the effect of different amounts of pre-transformed martensite on the kinetics of isothermal bainitic transformation and the strength and toughness of martensite-bainitic (MB) duplex microstructure has been studied by using pre-quenching after conventional 850°C heating to different temperatures (220, 200, 180°C) below M s 3. Jul 26, 2019 · Microstructure and properties of the alloys could be changed by heat treatment process. Based on the results, the following conclusions can be made: (1) Sep 21, 2021 · Niobium is a critical alloying element for Ti-based alloys, and in most cases, it works as the β phase stabilizing element to be added. The only main difference between the CRA and HR specimens is the morphology and size of the ferrite grain, as seen in Fig. In order to estimate the fraction of retained austenite, a thermodynamic methodology has been developed for determining the optimal quenching Feb 1, 2016 · Quenching and partitioning (Q&P) treatment can effectively retain a significant amount of austenite in the 0. Nov 15, 2013 · The effect of cooling rate on hardness and microstructure of the hot-stamped boron steel with 0. Effect of Quenching Temperature on the Microstructure of Q1030 Steel. Aug 2, 2020 · In this paper, a 300 mm thickness ultra-heavy steel plate was selected as the research object. Aug 5, 2024 · Effect of different quenching holding times on microstructure, texture and electrical resistivity of NiCrAlFe alloy Author links open overlay panel Yamin Li a b , Shutong Fan a b , Yandong Wu a b , Xianyin Wu a b , Hongjun Liu a b Feb 1, 2024 · The bainite microstructure in 52100 bearing steel can be classified into upper and lower bainite in terms of carbide precipitation. The results show that low quenching temperature of 750 °C narrows the range of the cooling rate of only pearlite transformation, and the Sep 15, 2020 · Herein, a superior homogeneity of microstructure and hence strength and toughness achieved in a quenched and tempered (QT) 210 mm‐thickness steel plate produced by advanced electroslag remelting Aug 1, 2012 · Trans. The local volume fraction of retained austenite measured by EBSD drops significantly from 9. By quenching to 220 °C and then partitioning at 400 °C, the maximum volume fraction of the retained austenite is obtained to be approximately 13 vol% in the Q&P treated MSS. The major conclusions are described as follows: (1) Combining pre-quenching with two-stage heat treatment can refine the ferrite grains significantly. In this study, the effect of the quenching cooling rate on the microstructure of two precipitation-hardened martensitic stainless steels was investigated. 6 a, b. Oct 19, 2023 · The effects of quenching temperature on the microstructure and mechanical properties were studied. Aug 13, 2023 · When the quenching rate is above 10 °C/s, it has little effect on the density of the nano-precipitates in the microstructure of Al-Mg-Si-Cu alloy . The lower bainite, in which bainite carbide is formed inside bainite ferrite, is the expected microstructure in isothermal quenching due to its high hardness and toughness [5, 6]. 53 × 7 m, the filling rate is 17. Results show that with the increase in solution temperature, the content of undissolved carbides decreased, and the grain size increased. 3C-1. , water-quenching (WQ) and wind-cooling (WC) on the precipitation behavior during subsequent artificial aging and mechanical properties of aged Al-Si-Cu-Mg alloys at room temperature and 150 °C–300 °C have been investigated. Jan 1, 2022 · The microstructure of the rolled sample consists of ferrite matrix and pearlite dispersed in it, as shown in Fig. 6 mm or 1. The results demonstrate that the intercritical deformation Oct 11, 2024 · The microstructure and properties of powder metallurgy high-speed steel prepared by hot isostatic pressing with different heat treatments have been studied. 6 °C/s, 88. Go to reference in article; Crossref; Google Scholar Jan 5, 2017 · In this research, the effect of austenitizing at 900-1100 °C and tempering at 250-650 °C on the microstructure and mechanical properties of 410 and 410 Ni martensitic stainless steels was Aug 2, 2022 · When the quenching temperature is increased from 950 to 1000 °C, the M 3 C carbides precipitated between the martensite lath are transformed from short rod-like to spherical shapes, which improves the plasticity of the steel. In addition, special roller quenching equipment and a new testing method were used to measure the quenching temperature curve at different positions of the steel plate. Tempering after quenching is a necessity, used to induce a balance between hardness, strength and toughness. 0Mn–0. 47Mn-1. 17 illustrates the microstructural evolution during the Q&P process in the IQP. During quenching and reheating, it is difficult to eliminate large network carbides, granular carbides and rod-shaped carbides. 40Si-0. 6Cr–0. ezoebyn pnrzf ngcpqlt turz duish tcpa ltavjib duorwu cvmby mtpeg