| Nb微合金化CMnSi、CMnAl热轧TRIP钢组织性能研究 |
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| 引用本文： | 张明明,赵征志,赵爱民,高绪涛,张宇光,陈永.Nb微合金化CMnSi、CMnAl热轧TRIP钢组织性能研究[J].轧钢,2011,28(1):15-17. |
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| 作者姓名： | 张明明 赵征志 赵爱民 高绪涛 张宇光 陈永 |
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| 作者单位： | 北京科技大学冶金工程学院 |
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| 基金项目： | "十一五"国家科技支撑计划，北京市科委重大项目 |
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| 摘 要： | 研究了在相同的控轧控冷工艺条件下，N b微合金化CMnSi系与CMnAl系热轧TRIP钢的显微组织和力学性能。结果显示，由于Si的固溶强化作用和残余奥氏体在形变过程中的相变强化作用，使CMnSi系热轧TPIP钢的强度与塑性良好结合，抗拉强度为829Mpa，断裂总伸长率为25.44%，残余奥氏体晶粒间距小，充分弥散，可以得到较高的n值。
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| 关 键 词： | 热轧 TRIP钢 组织和力学性能 固溶强化 残余奥氏体 相变强化 |
Research on Microstructure and Mechanical Properties of Nb Microalloying Hot Rolled CMnSi and CMnAl TRIP Steels |
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| ZHANG Ming-ming,ZHAO Zheng-zhi,ZHAO Ai-min,GAO Xu-tao,ZHANG Yu-guang,CHEN Yong.Research on Microstructure and Mechanical Properties of Nb Microalloying Hot Rolled CMnSi and CMnAl TRIP Steels[J].Steel Rolling,2011,28(1):15-17. |
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| Authors: | ZHANG Ming-ming ZHAO Zheng-zhi ZHAO Ai-min GAO Xu-tao ZHANG Yu-guang CHEN Yong |
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| Affiliation: | ZHANG Ming-ming,ZHAO Zheng-zhi,ZHAO Ai-min,GAO Xu-tao,ZHANG Yu-guang,CHEN Yong (Research Institute of Metallurgy Engineering,University of Science & Technology Beijing,Beijing 100083,China) |
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| Abstract: | The microstructure and mechanical properties of Nb microalloying hot-rolled CMnSi and CMnAl transformation-induced plasticity（TRIP） steels which were prepared through the same controlled rolling and cooling process were investigated.The results showed that hot-rolled CMnSi TRIP steel with tensile strength of 829MPa and total fracture elongation of 25.44%has a good combination of strength and plasticity as a result of the higher capacity in solid solution hardening of Si and transformation hardening of RA→M,because of small grain spacing and distribution between austenite,hot-rolled CMnSi TRIP steel could reach higher work-hardening index. |
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| Keywords: | hot-rolled TRIP steels microstructure and mechanical property solid solution hardening remained austenite transformation hardening |
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