Tensile Properties of TWIP Steel at High Strain Rate

作     者：XIONG Rong-gang FU Ren-yu SU Yu LI Qian WEI Xi-cheng LI Lin 

作者机构：School of Materials Science and Engineering Shanghai University Shanghai 200072 China 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2009年第16卷第1期

页      面：81-86,21页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Item Sponsored by National Natural Science Foundation of China (50671061) 

主　　题：twin-induced plasticity strain rate strain hardening deformation twin 

摘      要：Tensile tests of TWIP steels of two compositions are performed in the strain rate range of 10^-5-10^3 s^-1. Results indicate that steel 1^# does not exhibit TWIP effect but deformation-induced martensitic transformation appears only. There exists TWIP effect in steel 3^# . Tensile properties at room temperature are sensitive to strain rate in the studied strain rate ranges. Analysis on the relationship between strain-hardening exponent and strain rates shows that strain induced martensitic transformation and formation of twins during deformation have significant in- fluence on their strain-hardening behavior.