郭志凯,李龙飞,杨王玥,孙祖庆

• 1:北京科技大学新金属材料国家重点实验室
• 2:北京科技大学材料科学与工程学院

摘要(Abstract)：

利用Gleeble 1500热模拟试验机进行单轴压缩,通过基于马氏体温变形和两相区短时间退火的工艺制备了两种C含量的高锰TRIP钢,并结合扫描电镜、X射线和室温拉伸等实验研究了C含量对高锰TRIP钢制备过程的组织演变和室温力学性能的影响。结果表明,C含量从0.08%提高到0.18%,降低了逆转变奥氏体的化学驱动力,不利于温变形过程中逆转变奥氏体的形成。但由于马氏体分解可得到较多的渗碳体粒子,提高C含量使得退火组织中马奥岛含量和残留奥氏体含量增多且残留奥氏体C含量增加,因此提高了高锰TRIP钢的强度和塑性。

关键词(KeyWords)： 高锰TRIP钢;马氏体温变形;C含量;残留奥氏体;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划资助(2010CB63081);; 新金属材料国家重点实验室自主课题(2012Z-04)

作者(Author): 郭志凯,李龙飞,杨王玥,孙祖庆

DOI: 10.13289/j.issn.1009-6264.2015.07.024

参考文献(References)：

• [1]De Moor E,Gibbs P J,Speer J G,et al.Strategies for third-generation advanced high-strength steel development[J].AIST Transactions,2010,7(3):132-144.
• [2]李振,程晓杰,蔡阿云,等.低碳中锰冷轧TRIP钢退火工艺及组织演变[J].材料热处理学报,2014,35(7):151-155.LI Zhen,CHENG Xiao-jie,CAI A-yun,et al.Annealing process and microstructure evolution of cold-rolled low-carbon medium-manganese TRIP steels[J].Transactions of Materials and Heat Treatment,2014,35(7):151-155.
• [3]Gibbs P J,De Moor E,Merwin M J,et al.Austenite stability effects on tensile behavior of manganese-enriched-austenite transformation-induced plasticity steel[J].Metallurgical and Materials Transactions A,2011,42(12):3691-3702.
• [4]Grssel O,Krüger L,Frommeyer G,et al.High strength Fe-Mn-(Al,Si)TRIP/TWIP steels development-properties-application[J],International Journal of Plasticity,2000,16(10/11),1391-1409.
• [5]Shi J,Sun X J,Wang M Q,et al.Enhanced work-hardening behavior and mechanical properties in ultrafine-grained steels with large-fractioned metastable austenite[J].Scripta Materialia,2010,63:815-818.
• [6]李楠,时捷,王存宇,等.两相区退火时间对冷轧中锰钢组织和力学性能的影响[J].材料热处理学报,2011,32(8):74-78.LI Nan,SHI Jie,WANG Cun-yu,et al.Effect of annealing time on microstructure and mechanical properties of a cold rolled medium manganese steel[J].Transactions of Materials and Heat Treatment,2011,32(8):74-78.
• [7]江海涛,代乐乐,李志超,等.两相区退火对中锰钢热轧板组织和性能的影响[J].材料热处理学报,2013,34(7):100-105.JIANG Hai-tao,DAI Le-le,LI Zhi-chao,et al.Effect of intercritical annealing on microstructure and performance of hot-rolled medium manganese steel plate[J].Transactions of Materials and Heat Treatment,2013,34(7):100-105.
• [8]Furukawa T,Huang H,Matsumura O.Effects of carbon content on mechanical properties of 5%Mn steels exhibiting transformation induced plasticity[J].Materials Science and Technology,1994,10(11):964-969.
• [9]Arlazarov A,GounéM,Bouaziz O,et al.Evolution of microstructure and mechanical properties of medium Mn steels during double annealing[J].Materials Science and Engineering A,2012,542:32-39.
• [10]郭志凯,李龙飞,杨王玥,等.基于马氏体温变形的高锰TRIP钢组织演变[J].材料热处理学报,2014,35(10):130-137.GUO Zhi-kai,LI Long-fei,YANG Wang-yue,et al.Microstructure of high manganese TRIP steel based on warm deformation of martensite[J].Transactions of Materials and Heat Treatment,2014,35(10):130-137.
• [11]Miller R L.A rapid x-ray method for the determination of retained austenite[J].Transactions of the ASM,1964,57:892-899.
• [12]Dyson D J,Holmes B.Effect of alloying additions on the lattice parameter of austenite[J].Journal of the Iron and Steel Institute,1970,208(5):469-474.
• [13]李龙飞,尹云洋,杨王玥,等.合金元素和工艺参数对热轧TRIP钢动态相变的影响[J].北京科技大学学报,2013,35(9):1165-1169.LI Long-fei,YIN Yun-yang,YANG Wang-yue,et al.Influences of alloying elements and processing parameters on the dynamic transformation of undercooled austenite in hot-rolled TRIP steels[J].Journal of University of Science and Technology Beijing,2013,35(9):1165-1169.
• [14]Luo H W,Shi J,Wang C,et al.Experimental and numerical analysis on formation of stable austenite during the intercritical annealing of 5Mn steel[J].Acta Materialia,2011,59:4002-4014.
• [15]Wang C,Cao W Q,Shi J,et al.Deformation microstructures and strengthening mechanisms of an ultrafine grained duplex medium-Mn steel[J].Materials Science and Engineering A,2013,562:89-95.
• [16]Song R,Ponge D,Raabe D.Mechanical properties of an ultrafine grained C-Mn steel processed by warm deformation and annealing[J].Acta Materialia,2005,53:4881-4892.
• [17]Jacques P,Furnémont Q,Mertens A,et al.On the sources of work hardening in multiphase steels assisted by transformation-induced plasticity[J].Philosophical Magazine A,2001,81(7):1789-1812.
• [18]Jacques P,Furnémont Q,Pardoen T,et al.On the role of martensitic transformation on damage and cracking resistance in TRIP-assisted multiphase steels[J].Acta Materialia,2001,49(1):139-152.

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