| 孪生诱导塑性钢的高温变形行为 |
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| 引用本文： | 王书晗,张维娜,刘振宇,王国栋.孪生诱导塑性钢的高温变形行为[J].钢铁研究学报,2009,21(5):26-0. |
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| 作者姓名： | 王书晗 张维娜 刘振宇 王国栋 |
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| 作者单位： | 东北大学轧制技术与连轧自动化国家重点实验室,辽宁,沈阳,110004 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 通过单道次压缩实验，研究了孪生诱导塑性钢，即TWIP钢在800~1 000 ℃、应变速率=001~500 s-1条件下的热变形行为及其组织变化。结果表明，TWIP钢的热变形激活能Q=489972 kJ/mol，在此基础上得到了TWIP钢高温变形的热加工方程；采用Z参数预测了动态再结晶的临界条件，得知：Z≤676×1020时，易发生动态再结晶，此时TWIP钢具有较好的热加工性能。
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| 关 键 词： | TWIP钢 热变形 微观组织 再结晶 |
| 收稿时间： | 1900-01-01; |
Hot Workability of TWIP Steel |
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| WANG Shu-han,ZHANG Wei-na,LIU Zhen-yu,WANG Guo-dong.Hot Workability of TWIP Steel[J].Journal of Iron and Steel Research,2009,21(5):26-0. |
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| Authors: | WANG Shu-han ZHANG Wei-na LIU Zhen-yu WANG Guo-dong |
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| Affiliation: | State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China |
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| Abstract: | Hot deformation behavior and evolution of the microstructure at high temperatures of TWIP steel were predicted by using hot compression test at different strain rates and temperatures. The results show that the investigated TWIP steel has relatively high activity energy of Q=489972 kJ/mol for hot deformation, and the hot working equation is obtained. The occurrence of dynamic recrystallization can be estimated by using a Zener Hollomon type equation. The results show that dynamic recrystallization is prone to occur when Z≤676×1020, and better hot deformation properties will be obtained under this condition. |
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| Keywords: | TWIP steel hot deformation microstructure recrystallization |
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