将20Mn5钢和20Mn5Si2钢进行淬火和配分(Q&P)工艺处理,用扫描电镜观测其微观组织,用X射线法测量残余奥氏体量,研究了Si对其微观组织和力学性能的影响.结果表明,试验钢中的奥氏体含量明显高于传统的TRIP钢和Q&P 工艺处理钢;在相同Q＆P工艺条件下,20Mn5Si2钢比20Mn5有较多的残余奥氏体,析出物数量较少.同时,20Mn5Si2钢具有较低的屈服强度、较高的抗拉强度和达到28 GPa%的强塑积.Si的添加提高了中锰钢中残余奥氏体量,这种奥氏体在拉伸变形过程中的TRIP效应是产生较高抗拉强度高和延伸率的主要原因.
参考文献
| [1] | WANGCunyu,Investigationon30GPa%Grade Ultrahigh-strength Martensitic-Austenitic Steels,Ph.D Thesis,Central Iron & Steel Research Institute(2010)(王存宇,30GPa%级超高强度马奥组织钢的研究,博士学位论文,钢铁研究总院(2010)) |
| [2] | Jie Shi,Xinjun Sun,Maoqiu Wang,Weijun Hui,Han Dong and Wenquan Cao,Enhanced work-hardening behavior and mechanical properties in ultrafine-grained steels with large-fractioned metastable austenite,Scripta Materialia,63(8),815(2010) |
| [3] | Jie Shi,Wenquan Cao and Han Dong.Ultrafine grained high strength low alloy steel with high strength and high ductility,Materials Science Forum,654-656,238(2010) |
| [4] | D.K.Matlock,V.E.Br(a)utigam,J.G.Speer,Application of the quenching and partitioning (Q&P) process to a medium-carbon high Si microalloyed bar steel,Mater.Sci.,426-432,1089(2003) |
| [5] | WANG Cunyu,XIE Xiqiang,LIU Su,Q&P research technology,Jourral of Iron and Steel Research,21(9),6(2009)(王存宇,解西强,刘苏,Q&P工艺研究现状,钢铁研究学报,21(9),6(2009)) |
| [6] | CAO Dongdong,ZHANG Mei,WAN Zi,Research on the welding ability of low Si TRIP steel,Shanghai Metals,27(4),6(2005)(曹东栋,张梅,万紫,低硅TRIP钢焊接性能的试验研究,上海金属,27(4),6(2005)) |
| [7] | XIE Xiqiang,GAO Wentao,SHI Jie,WANG Cunyu,ZHANG Fang,Effect of quenching and partitioning (Q&P) process on structure and mechanical properties of steel 25Si2Ni3,Special Steel,29(5),56(2008)(解西强,高文涛,时捷,王存宇,张方,Q＆P工艺对25Si2Ni3钢组织和力学性能的影响,特殊钢,29(5),56(2008)) |
| [8] | XIE Xiqiang,Microstructure and mechanical properties of New martensitic steels treated by quenching and partitioning process,Master's thesis,Kunming University of.& Tech.(2008)(解西强,Q&P获得的新型马氏体钢微观组织及性能研究,硕士学位论文,昆明理工大学(2008)) |
| [9] | ZHAO Songshan,TANG Di,ZHAO Cai,JIANG Haitao,LI Hui,Study on the quantity and distribution regularities of retained austenite in Q&P Steel,Research on Iron & Stell,35(6),14(2007)(赵松山,唐荻,赵才,江海涛,李辉,Q＆P钢残余奥氏体定量分析及分布规律研究,钢铁研究,35(6),14(2007)) |
| [10] | LIU Qiang,JIANG Haitao,TANG Di,LIU Rendong,Distribution and transformation behavior of retained austenite in TRIP steel,Physics Examination and Testing,26(4),21(2008)(刘强,江海涛,唐荻,刘仁东,TRIP钢中残余奥氏体的分布及相变形为,物理测试,26(4),21(2008)) |
| [11] | Ji Yunhang,Wang Li,Feng Weijun,Effects of Mn on the properties of quenching and partitioning treated sheet steel,Bao Steel Technical Research,2(4),12(2008) |
| [12] | J.Lis,A.Lis,Kinetics of the austenite formation during intercritical annealing,Journal of Achievements in Materials and Manufacturing Engineering,26(2),195(2008) |
| [13] | DUAN Hanqiao,Effect of Mn on austenite cooling transformation of high Cr cast iron,China Mechanical Engineering,12(5),598(2001)(段汉桥,锰对高铬铸铁奥氏体冷却转变过程的影响,中国机械工程,12(5),598(2001)) |
| [14] | J.Lis,J.Morgiel,A.Lis,The effect of Mn partitioning in Fe-Mn-Si alloy investigated with STEM-EDS techniques,Materials Chemistry and Physics,81,466(2003) |
| [15] | J.Lis,Microsegregation of manganese in low carbon steels during intercritical heat treatments,Publisher WIPM and FS,Czestochowa University of Technology,Seria:Materials Engineering 7,Czestochowa,(2005) |
| [16] | LIU Zhixue,Application research on bainitic wearresistant steels,Master's thesis,Xi'an Poly-Technic University(2005)(刘志学,新型贝氏体耐磨钢的研制与应用,硕士学位论文,西安工业学院(2005)) |
| [17] | LI Lin,Phase Plastic Steel-Principle,Function,Design and Application (Beijing,Science Press,2009)(李麟,相变塑性钢-原理、性能、设计和应用(北京,科学出版社,2009)) |
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