对TRIP 590和TRIP 780两种强度级别的钢板进行了应变量为5%, 10%, 15%的拉伸预应变, 通过静态拉伸试验和扫描电镜研究了拉伸预应变对钢中残余奥氏体含量和力学性能的影响。结果表明: 随着预应变量的增加, 钢中的残余奥氏体含量减少, 马氏体转变; 拉伸预应变提高了钢的抗拉强度和伸长率,随预应变量的增大, 强度明显增加, 塑性变化不大。
所属栏目
教育部长江学者与创新团队发展计划资助项目(531105050037); 湖南大学汽车车身先进设计制造国家重点实验室自主课题资助项目(60870005)
收稿日期
2010/12/152011/7/13
作者单位
曾宇卓:湖南大学汽车车身先进设计制造国家重点实验室, 长沙 410082
李光耀:湖南大学汽车车身先进设计制造国家重点实验室, 长沙 410082
刘迪辉:湖南大学汽车车身先进设计制造国家重点实验室, 长沙 410082
备注
曾宇卓(1986-), 男, 湖南长沙人, 硕士研究生。
引用该论文:
ZENG Yu-zhuo,LI Guang-yao,LIU Di-hui.Effect of Tensile Pre-Strain on Microstructure and Mechanical Properties of TRIP Steels[J].Materials for mechancial engineering,2011,35(12):26～28
曾宇卓,李光耀,刘迪辉.拉伸预应变对TRIP钢显微组织和力学性能影响[J].机械工程材料,2011,35(12):26～28
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