| 低碳Si-Mn系TRIP钢的动态拉伸性能 |
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| 引用本文： | 谢群,韦习成,张梅,李麟,符仁钰.低碳Si-Mn系TRIP钢的动态拉伸性能[J].北京科技大学学报,2006,28(7):635-640. |
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| 作者姓名： | 谢群 韦习成 张梅 李麟 符仁钰 |
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| 作者单位： | 上海大学材料科学与工程学院,上海,200072 |
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| 基金项目： | 上海市教委资助项目
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上海市科委资助项目 |
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| 摘 要： | 在气动式间接杆杆型冲击拉伸实验机上对工业生产的两种低碳Si-Mn系TRIP钢不同应变率下的高速冲击拉伸性能进行了研究,并和静态拉伸性能进行了比较.结果表明,两种钢的室温拉伸性能随应变率变化具有相同趋势,但动态下的应变率敏感性比静态下的要高得多.由于TRIP钢组织中残余奥氏体的变形诱发向马氏体的转变显著改善了材料的塑性.
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| 关 键 词： | TRIP钢 相变诱发塑性 高应变率 动态拉伸 低碳 TRIP 动态 室温拉伸性能 steels carbon characteristics tensile 塑性 材料 改善 转变 马氏体 变形 残余奥氏体 钢组织 应变率敏感性 趋势 变化 结果 |
| 收稿时间： | 2005-08-03 |
| 修稿时间： | 2005-09-29 |
Dynamic tensile characteristics of low carbon Si-Mn TRIP steels |
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| XIE Qun,WEI Xicheng,ZHANG Mei,LI Lin,FU Renyu.Dynamic tensile characteristics of low carbon Si-Mn TRIP steels[J].Journal of University of Science and Technology Beijing,2006,28(7):635-640. |
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| Authors: | XIE Qun WEI Xicheng ZHANG Mei LI Lin FU Renyu |
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| Institution: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | The tensile mechanical properties of two industrial TRIP steels, K(0.091%C-1.456%Si-1.061%Mn) and B(0.134%C-1.525%Si-1.226%Mn), at high strain rate were investigated with a self-designed pneumatically actuating tensile impact bar-bar tester and compared to the quasistatic tensile behavior. The results showed that their tensile properties at room temperature exhibit consistent trends and are far more sensitive to strain-rate in dynamic tension than in static mode. Because the stable retained austenite in TRIP steels transformed to martensite during tensile test and the materials exhibited excellent transformation induced plasticity, the plastic deformation behaviors were evidently improved. |
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| Keywords: | TRIP steel transformation induced plasticity high strain rate dynamic tension |
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