轧制预变形和奥氏体化温度对贝氏体钢显微组织与拉伸性能的影响
Effect of Rolling Pre-deformation and Austenitizing Temperature on Microstructure and Tensile Properties of Bainitic Steel
摘 要
对Fe-0.9C-1.4Si-1.6Mn-0.8Cr-0.2Mo-0.25Al钢锭分别进行冷轧与热轧变形处理,再进行850~1 100 ℃奥氏体化处理和300 ℃等温处理,研究了轧制预变形和奥氏体化温度对显微组织和拉伸性能的影响。结果表明:经950 ℃奥氏体化后,冷轧预变形钢主要由贝氏体铁素体和残余奥氏体组成,热轧预变形钢则由贝氏体和残余奥氏体组成,相比于未预变形钢,残余奥氏体含量减少;冷轧变形可同时提高钢的抗拉强度和断后伸长率,热轧变形则会降低断后伸长率。当奥氏体化温度在850~1 050 ℃时,冷轧预变形钢的残余奥氏体含量变化不大,当奥氏体化温度为1 100 ℃时,残余奥氏体含量减少并出现片状魏氏体铁素体;随着奥氏体化温度升高,冷轧预变形钢的抗拉强度和断后伸长率先略微增大后减小,当奥氏体化温度为950 ℃时达到最大。
预变形
冷轧
热轧
显微组织
拉伸性能
bainitic steel
pre-deformation
cold rolling
hot rolling
microstructure
tensile property
Abstract
Fe-0.9C-1.4Si-1.6Mn-0.8Cr-0.2Mo-0.25Al steel ingot was subjected to cold rolling and hot rolling deformation, respectively, and then was treated by austenitizing at 850-1 100 ℃ and isothermal treatment at 300 ℃. The effects of the rolling pre-deformation and austenitizing temperature on the microstructure and tensile properties were studied. The results show that the cold rolled pre-deformed steel was mainly composed of bainite ferrite and retained austenite after austenitizing at 950 ℃, while the hot rolled pre-deformed steel was composed of bainite and retained austenite. Compared with that of the non-pre-deformed steel, the retained austenite content decreased. Cold rolling deformation could improve both tensile strength and percentage elongation after fracture of the steel, while hot rolling deformation could reduce the percentage elongation after fracture. The content of retained austenite in cold rolled pre-deformed steel did not change much at austenitizing temperatures of 850-1 050 ℃, but decreased at 1 100 ℃. At the austenitizing temperature of 1 100 ℃, flake Widmanstatten ferrite appeared. With the increase of austenitizing temperature, the tensile strength and percentage elongation after fracture of cold rolled pre-deformed steel first increased slightly and then decreased, and reached the maximum at the austenitizing temperature of 950 ℃.
中图分类号 TG146 DOI 10.11973/jxgccl202307010
所属栏目 材料性能及应用
基金项目 吉林省科技发展计划项目(20200418);国家重点基础研究发展计划项目(2019CB722803)
收稿日期 2021/11/21
修改稿日期 2022/3/3
网络出版日期
作者单位点击查看
备注赵秋红(1983-),女,河北秦皇岛人,副教授,硕士
引用该论文: ZHAO Qiuhong,WANG Qingfen,MA Daoyuan. Effect of Rolling Pre-deformation and Austenitizing Temperature on Microstructure and Tensile Properties of Bainitic Steel[J]. Materials for mechancial engineering, 2023, 47(7): 62～66
赵秋红,王庆芬,马到原. 轧制预变形和奥氏体化温度对贝氏体钢显微组织与拉伸性能的影响[J]. 机械工程材料, 2023, 47(7): 62～66
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参考文献
【1】位亮.高强度工程机械用钢应用现状和发展前景[J].冶金与材料,2021,41(1):147-148. WEI L.Application status and development prospect of high strength steel for construction machinery[J].Metallurgy and Materials,2021,41(1):147-148.
【2】徐士新,余伟,李舒笳,等.预变形温度对纳米贝氏体相变动力学及组织的影响[J].金属学报,2018,54(8):1113-1121. XU S X,YU W,LI S J,et al.Effects of pre-deformation temperature on nanobainite transformation kinetics and microstructure[J].Acta Metallurgica Sinica,2018,54(8):1113-1121.
【3】XIONG X C,CHEN B,HUANG M X,et al.The effect of morphology on the stability of retained austenite in a quenched and partitioned steel[J].Scripta Materialia,2013,68(5):321-324.
【4】冯路路,胡锋,乔文玮,等.水电站用低碳贝氏体钢07MnCrMoVR的组织性能研究[J].钢铁研究学报,2020,32(12):1124-1131. FENG L L,HU F,QIAO W W,et al.Study on microstructure and properties of low carbon bainite steel 07MnCrMoVR for hydropower station[J].Journal of Iron and Steel Research,2020,32(12):1124-1131.
【5】FOROUZAN F,GUNASEKARAN S,HEDAYATI A,et al.Microstructure analysis and mechanical properties of low alloy high strength quenched and partitioned steel[J].Solid State Phenomena,2016,258:574-578.
【6】ZURNADZHY V I,EFREMENKO V G,WU K M,et al.Effects of stress relief tempering on microstructure and tensile/impact behavior of quenched and partitioned commercial spring steel[J].Materials Science and Engineering:A,2019,745:307-318.
【7】刘曼,胡海江,田俊羽,等.变形对超高强贝氏体钢组织和力学性能的影响[J].金属学报,2021,57(6):749-756. LIU M,HU H J,TIAN J Y,et al.Effect of ausforming on the microstructures and mechanical properties of an ultra-high strength bainitic steel[J].Acta Metallurgica Sinica,2021,57(6):749-756.
【8】FINDLEY K O,HIDALGO J,HUIZENGA R M,et al.Controlling the work hardening of martensite to increase the strength/ductility balance in quenched and partitioned steels[J].Materials & Design,2017,117:248-256.
【9】蔡晓文.奥氏体区压缩变形对低碳贝氏体钢贝氏体相变的影响[J].机械工程材料,2019,43(9):68-72. CAI X W.Effects of compression deformation in austenite zone on phase transformation of bainite in low-carbon bainitic steel[J].Materials for Mechanical Engineering,2019,43(9):68-72.
【10】WANG C Y,CHANG Y,YANG J,et al.Work hardening behavior and stability of retained austenite for quenched and partitioned steels[J].Journal of Iron and Steel Research,International,2016,23(2):130-137.
【11】陈光辉,徐耀文,刘曼,等.高温变形和过冷度对中碳钢贝氏体相变的影响[J].钢铁研究学报,2020,32(11):984-989. CHEN G H,XU Y W,LIU M,et al.Effect of high-temperature deformation and undercooling on bainite transformation of a medium-carbon bainitic steel[J].Journal of Iron and Steel Research,2020,32(11):984-989.
【12】WANG C Y,CHANG Y,LI X D,et al.Relation of martensite-retained austenite and its effect on microstructure and mechanical properties of the quenched and partitioned steels[J].Science China Technological Sciences,2016,59(5):832-838.
【13】胡海江,徐光,张玉龙,等.变形对贝氏体钢等温相变动力学影响[J].材料热处理学报,2015,36(12):247-251. HU H J,XU G,ZHANG Y L,et al.Effects of deformation on kinetics of bainite transformation in a bainitic steel[J].Transactions of Materials and Heat Treatment,2015,36(12):247-251.
【14】张慧杰,肖红亮,包耀宗.轧制工艺对低碳贝氏体钢组织和力学性能的影响[J].热加工工艺, 2015, 44(11); 25-28. ZHANG H J,XIAO H L,BAO Y Z.Effects of rolling process on microstructures and mechanical properties of low carbon bainitic steel[J].Hot Working Technology,2015,44(11):25-28.
【15】何建国,赵爱民,黄耀,等.温轧工艺对纳米贝氏体相变速率、组织和力学性能的影响[J].材料研究学报,2015,29(3):207-212. HE J G,ZHAO A M,HUANG Y,et al.Effect of warm rolling process on phase transformation,microstructure and mechanical properties of nano-bainite steel[J]. Chinese Journal of Materials Research,2015,29(3):207-212.
【2】徐士新,余伟,李舒笳,等.预变形温度对纳米贝氏体相变动力学及组织的影响[J].金属学报,2018,54(8):1113-1121. XU S X,YU W,LI S J,et al.Effects of pre-deformation temperature on nanobainite transformation kinetics and microstructure[J].Acta Metallurgica Sinica,2018,54(8):1113-1121.
【3】XIONG X C,CHEN B,HUANG M X,et al.The effect of morphology on the stability of retained austenite in a quenched and partitioned steel[J].Scripta Materialia,2013,68(5):321-324.
【4】冯路路,胡锋,乔文玮,等.水电站用低碳贝氏体钢07MnCrMoVR的组织性能研究[J].钢铁研究学报,2020,32(12):1124-1131. FENG L L,HU F,QIAO W W,et al.Study on microstructure and properties of low carbon bainite steel 07MnCrMoVR for hydropower station[J].Journal of Iron and Steel Research,2020,32(12):1124-1131.
【5】FOROUZAN F,GUNASEKARAN S,HEDAYATI A,et al.Microstructure analysis and mechanical properties of low alloy high strength quenched and partitioned steel[J].Solid State Phenomena,2016,258:574-578.
【6】ZURNADZHY V I,EFREMENKO V G,WU K M,et al.Effects of stress relief tempering on microstructure and tensile/impact behavior of quenched and partitioned commercial spring steel[J].Materials Science and Engineering:A,2019,745:307-318.
【7】刘曼,胡海江,田俊羽,等.变形对超高强贝氏体钢组织和力学性能的影响[J].金属学报,2021,57(6):749-756. LIU M,HU H J,TIAN J Y,et al.Effect of ausforming on the microstructures and mechanical properties of an ultra-high strength bainitic steel[J].Acta Metallurgica Sinica,2021,57(6):749-756.
【8】FINDLEY K O,HIDALGO J,HUIZENGA R M,et al.Controlling the work hardening of martensite to increase the strength/ductility balance in quenched and partitioned steels[J].Materials & Design,2017,117:248-256.
【9】蔡晓文.奥氏体区压缩变形对低碳贝氏体钢贝氏体相变的影响[J].机械工程材料,2019,43(9):68-72. CAI X W.Effects of compression deformation in austenite zone on phase transformation of bainite in low-carbon bainitic steel[J].Materials for Mechanical Engineering,2019,43(9):68-72.
【10】WANG C Y,CHANG Y,YANG J,et al.Work hardening behavior and stability of retained austenite for quenched and partitioned steels[J].Journal of Iron and Steel Research,International,2016,23(2):130-137.
【11】陈光辉,徐耀文,刘曼,等.高温变形和过冷度对中碳钢贝氏体相变的影响[J].钢铁研究学报,2020,32(11):984-989. CHEN G H,XU Y W,LIU M,et al.Effect of high-temperature deformation and undercooling on bainite transformation of a medium-carbon bainitic steel[J].Journal of Iron and Steel Research,2020,32(11):984-989.
【12】WANG C Y,CHANG Y,LI X D,et al.Relation of martensite-retained austenite and its effect on microstructure and mechanical properties of the quenched and partitioned steels[J].Science China Technological Sciences,2016,59(5):832-838.
【13】胡海江,徐光,张玉龙,等.变形对贝氏体钢等温相变动力学影响[J].材料热处理学报,2015,36(12):247-251. HU H J,XU G,ZHANG Y L,et al.Effects of deformation on kinetics of bainite transformation in a bainitic steel[J].Transactions of Materials and Heat Treatment,2015,36(12):247-251.
【14】张慧杰,肖红亮,包耀宗.轧制工艺对低碳贝氏体钢组织和力学性能的影响[J].热加工工艺, 2015, 44(11); 25-28. ZHANG H J,XIAO H L,BAO Y Z.Effects of rolling process on microstructures and mechanical properties of low carbon bainitic steel[J].Hot Working Technology,2015,44(11):25-28.
【15】何建国,赵爱民,黄耀,等.温轧工艺对纳米贝氏体相变速率、组织和力学性能的影响[J].材料研究学报,2015,29(3):207-212. HE J G,ZHAO A M,HUANG Y,et al.Effect of warm rolling process on phase transformation,microstructure and mechanical properties of nano-bainite steel[J]. Chinese Journal of Materials Research,2015,29(3):207-212.
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