低合金高强钢形变奥氏体相变行为及其模型
|
摘要
为了研究低合金高强钢的形变奥氏体连续冷却转变行为及组织变化规律,利用Gleeble-3800热力模拟试验机对试验钢进行了多道次轧制工艺模拟试验,并根据试验所得相变温度和各冷却速度下的室温组织相对量,回归出相变模型。结果表明,试验钢在变形后的连续冷却过程中发生铁素体、珠光体、贝氏体和马氏体转变,基于对各转变的温度和组织相对量得到的相变模型分析,证实了模型的可靠性。
Multi-pass deformation simulation tests were performed on a high strength low alloy(HSLA)steel by using a Gleeble-3800 thermo-mechanical simulator to study the continuous cooling transformation behaviors and the resultant microstructures.Based on the transformation temperatures or transformed microstructure volume fractions,the models for phase transformation of the tested steel were constructed.The results showed that there were ferrite,pearlite,bainite and martensite transformation occurring in the high strength low alloy steel.And the validity of the models for phase transformation temperatures or microstructure volume fractions resulting from the experimental data was confirmed.
Multi-pass deformation simulation tests were performed on a high strength low alloy(HSLA)steel by using a Gleeble-3800 thermo-mechanical simulator to study the continuous cooling transformation behaviors and the resultant microstructures.Based on the transformation temperatures or transformed microstructure volume fractions,the models for phase transformation of the tested steel were constructed.The results showed that there were ferrite,pearlite,bainite and martensite transformation occurring in the high strength low alloy steel.And the validity of the models for phase transformation temperatures or microstructure volume fractions resulting from the experimental data was confirmed.
引文
[1]Kestenbach H J,Campos S S,Morales E V.Role of interphase precipitation in microalloyed hot strip steels[J].Mater Sci Technol,2006,22:615.
[2] YANG G W,SUN X J,YONG Q L,et al.Austenite grain refinement and isothermal growth behavior in a low carbon vanadium microalloyed steel[J].Journal of Iron and Steel Research,International,2014,21:757.
[3] LIU D L,FU J,KANG Y L.Oxide and sulfide dispersive precipitation and effects on microstrncture and properties of low carbon steels[J].Journal of Materials Science and Technology,2002,18(1):7.
[4] WANG B X,LIAN J B.Effect of microstrncture on low temperature toughness of a low carbon Nb-V-Ti microalloyed pipeline steel[J].Materials Science and Engineering A,2014,592(13):50.
[5] Tsunekage N,Kobayashi K,Tsubakino H.Influence of sulphur and vanadium additions on toughness of bainitic steels[J].Materials Science and Technology,2001,17(7):847.
[6]陆恒昌,胡春东,王存宇,等.超低碳含铌钢的块状相变及动力学[J].钢铁,2018,53(2):50.(LU Heng-chang,HU Chun-dong,WANG Cun-yu,et al.Kinetics of massive transformation for an ultra-low carbon steel containing niobium[J].Iron and Steel,2018,53(2):50.)
[7]安治国,孟延军,史远,等.铜对中碳硅锰钢连续冷却相变的影响[J].钢铁,2017,52(12):80.(AN Zhi-guo,MENG Yan-jun,SHI Yuan,et al.Effect of Cu on continuous cooling transformation of medium carbon Si-Mn steel[J].Iron and Steel,2017,52(12):80.)
[8]李春诚,佟铁印,王亚东,等.连退工艺对低合金高强钢HC300LA力学性能的影响[J].中国冶金,2017,27(3):28.(LI Chun-cheng,TONG Tie-yin,WANG Ya-dong,et al.Effect of continuous annealing process on mechanical properties of high strength low alloy steel HC300LA[J].China Metallurgy,2017,27(3):28.)
[9]余万华,徐绿婷,张永军,等.65Mn钢连续冷却转变特性的试验研究[J].金属热处理,2010,35(1):47.(YU Wan-hua,XU Lü-ting,ZHANG Yong-jun,et al.Characteristic of65Mn steel during continuous cooling transformation[J].Heat Treatment of Metals,2010,35(1):47.)
[10]杜江,尹桂全,杨才福,等.钒-氮微合金化超低碳贝氏体钢的连续冷却转变特性[J].安徽工业大学学报:自然科学版,2007,24(4):369.(DU Jiang,YIN Gui-quan,YANG Cai-fu,et al.Continuous cooling transformation characteristics of V-N microalloyed ultra-low carbon bainite steels[J].Journal of Anhui University of Technology:Natural Science,2007,24(4):369.)
[11]包俊成,赵捷,宁保群,等.低碳铌钒微合金化钢奥氏体连续冷却转变行[J].钢铁研究学报,2013,25(8):28.(BAO Jun-cheng, ZHAOJie, NINGBao-qun, etal.Transformation behavior of austenite continuous cooling for Nb-V micro-alloyed low carbon steel[J].Journal of Iron and Steel Research,2013,25(8):28.)
[12]曹艺,王昭东,吴迪,等.Mo和Ni对低合金耐磨钢连续冷却转变的影响[J].材料热处理学报,2011,32(5):74.(CAO Yi,WANG Zhao-dong,WU Di,et al.Effect of Mo and Ni on continuous cooling transformation of low alloy wearresistant steel[J].Transactions of Materials and Heat Treatment,2011,32(5):74.)
[13]王春芳,厉勇,李南,等.热处理对AISI4340钢临界点及CCT曲线的影响[J].钢铁,2017,52(3):70.(WANG Chunfang,LI Yong,LI Nan,et al.Effect of heat treatment process on critical transformation and CCT curve of AISI4340steel[J].Iron and Steel,2017,52(3):70.)
[14]刘宝喜,高彩茹,郑文超,等.高韧性桥梁钢Q420qD的开发[J].中国冶金,2018,28(2):67.(LIU Bao-xi,GAO Cai-ru,ZHENG Wen-chao,et al.Development of Q420qD bridge steel with high toughness[J].China Metallurgy,2018,28(2):67.)
[15] Kwon O.A technology for the prediction and control of micostructural changes and mechanical properties in steel[J].Journal of the Iron and Steel Institute of Japan,1992,32(3):350.
[16]李曼云,孙本荣.钢的控制轧制和控制冷却技术手册[M].北京:冶金工业出版社,1990.(LI Man-yun,SUN Ben-rong.Technical Manual of Controlled Rolling and Controlled Cooling for Steel[M].Beijing:Metallurgical Industry Press,1990.)
[17]徐光,王巍,张鑫强,等.金属材料CCT曲线及绘制[M].北京:化学工业出版社,2009.(XU Guang,WANG Wei,ZHANG Xin-qiang,et al.CCT Curve and Drawing of Metallic Materials[M]. Beijing:ChemicalIndustry Press,2009.)
[18]徐祖耀.马氏体相变与马氏体[M].2版.北京:科学出版社,1999.(XU Zu-yao.Martensitic Transformation and Martensite[M].2nd ed.Beijing:Academic Press,1999.)
[2] YANG G W,SUN X J,YONG Q L,et al.Austenite grain refinement and isothermal growth behavior in a low carbon vanadium microalloyed steel[J].Journal of Iron and Steel Research,International,2014,21:757.
[3] LIU D L,FU J,KANG Y L.Oxide and sulfide dispersive precipitation and effects on microstrncture and properties of low carbon steels[J].Journal of Materials Science and Technology,2002,18(1):7.
[4] WANG B X,LIAN J B.Effect of microstrncture on low temperature toughness of a low carbon Nb-V-Ti microalloyed pipeline steel[J].Materials Science and Engineering A,2014,592(13):50.
[5] Tsunekage N,Kobayashi K,Tsubakino H.Influence of sulphur and vanadium additions on toughness of bainitic steels[J].Materials Science and Technology,2001,17(7):847.
[6]陆恒昌,胡春东,王存宇,等.超低碳含铌钢的块状相变及动力学[J].钢铁,2018,53(2):50.(LU Heng-chang,HU Chun-dong,WANG Cun-yu,et al.Kinetics of massive transformation for an ultra-low carbon steel containing niobium[J].Iron and Steel,2018,53(2):50.)
[7]安治国,孟延军,史远,等.铜对中碳硅锰钢连续冷却相变的影响[J].钢铁,2017,52(12):80.(AN Zhi-guo,MENG Yan-jun,SHI Yuan,et al.Effect of Cu on continuous cooling transformation of medium carbon Si-Mn steel[J].Iron and Steel,2017,52(12):80.)
[8]李春诚,佟铁印,王亚东,等.连退工艺对低合金高强钢HC300LA力学性能的影响[J].中国冶金,2017,27(3):28.(LI Chun-cheng,TONG Tie-yin,WANG Ya-dong,et al.Effect of continuous annealing process on mechanical properties of high strength low alloy steel HC300LA[J].China Metallurgy,2017,27(3):28.)
[9]余万华,徐绿婷,张永军,等.65Mn钢连续冷却转变特性的试验研究[J].金属热处理,2010,35(1):47.(YU Wan-hua,XU Lü-ting,ZHANG Yong-jun,et al.Characteristic of65Mn steel during continuous cooling transformation[J].Heat Treatment of Metals,2010,35(1):47.)
[10]杜江,尹桂全,杨才福,等.钒-氮微合金化超低碳贝氏体钢的连续冷却转变特性[J].安徽工业大学学报:自然科学版,2007,24(4):369.(DU Jiang,YIN Gui-quan,YANG Cai-fu,et al.Continuous cooling transformation characteristics of V-N microalloyed ultra-low carbon bainite steels[J].Journal of Anhui University of Technology:Natural Science,2007,24(4):369.)
[11]包俊成,赵捷,宁保群,等.低碳铌钒微合金化钢奥氏体连续冷却转变行[J].钢铁研究学报,2013,25(8):28.(BAO Jun-cheng, ZHAOJie, NINGBao-qun, etal.Transformation behavior of austenite continuous cooling for Nb-V micro-alloyed low carbon steel[J].Journal of Iron and Steel Research,2013,25(8):28.)
[12]曹艺,王昭东,吴迪,等.Mo和Ni对低合金耐磨钢连续冷却转变的影响[J].材料热处理学报,2011,32(5):74.(CAO Yi,WANG Zhao-dong,WU Di,et al.Effect of Mo and Ni on continuous cooling transformation of low alloy wearresistant steel[J].Transactions of Materials and Heat Treatment,2011,32(5):74.)
[13]王春芳,厉勇,李南,等.热处理对AISI4340钢临界点及CCT曲线的影响[J].钢铁,2017,52(3):70.(WANG Chunfang,LI Yong,LI Nan,et al.Effect of heat treatment process on critical transformation and CCT curve of AISI4340steel[J].Iron and Steel,2017,52(3):70.)
[14]刘宝喜,高彩茹,郑文超,等.高韧性桥梁钢Q420qD的开发[J].中国冶金,2018,28(2):67.(LIU Bao-xi,GAO Cai-ru,ZHENG Wen-chao,et al.Development of Q420qD bridge steel with high toughness[J].China Metallurgy,2018,28(2):67.)
[15] Kwon O.A technology for the prediction and control of micostructural changes and mechanical properties in steel[J].Journal of the Iron and Steel Institute of Japan,1992,32(3):350.
[16]李曼云,孙本荣.钢的控制轧制和控制冷却技术手册[M].北京:冶金工业出版社,1990.(LI Man-yun,SUN Ben-rong.Technical Manual of Controlled Rolling and Controlled Cooling for Steel[M].Beijing:Metallurgical Industry Press,1990.)
[17]徐光,王巍,张鑫强,等.金属材料CCT曲线及绘制[M].北京:化学工业出版社,2009.(XU Guang,WANG Wei,ZHANG Xin-qiang,et al.CCT Curve and Drawing of Metallic Materials[M]. Beijing:ChemicalIndustry Press,2009.)
[18]徐祖耀.马氏体相变与马氏体[M].2版.北京:科学出版社,1999.(XU Zu-yao.Martensitic Transformation and Martensite[M].2nd ed.Beijing:Academic Press,1999.)