| 23.8%Mn TRIP/TWIP钢的组织性能及强化机制 |
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| 引用本文： | 张淑娟,丁桦,丁昊,曾建敏,唐正友. 23.8%Mn TRIP/TWIP钢的组织性能及强化机制[J]. 材料与冶金学报, 2009, 8(3) |
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| 作者姓名： | 张淑娟 丁桦 丁昊 曾建敏 唐正友 |
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| 作者单位： | 东北大学,材料与冶金学院,沈阳,110004 |
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| 基金项目： | 国家大学生创新性实验计划资助项目 |
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| 摘 要： | 研究了锰含量(质量分数)为23.8%的低碳高锰钢的力学行为和组织演变,并对其强化机制进行了探讨.结果表明:23.8%Mn TRIP/TWIP钢的屈服强度约为300 MPa,抗拉强度可达610 MPa,断裂延伸率可达到63%.实验钢拉伸变形呈连续屈服,其应变硬化指数n值约为0.48.该钢在变形初期的强化机制以应变诱发孪生为主,变形后期出现应变诱发马氏体相变.位错与形变孪晶、马氏体之间的相互作用也对强度的增加做出贡献.
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| 关 键 词： | 高锰TRIP/TWIP钢 微观组织 力学行为 强化机制 |
Microstructures,mechanical properties and strengthening mechanisms of a 23.8% Mn TRIP/TWIP steel |
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| ZHANG Shu-juan,DING Hua,DING Hao,ZENG Jian-min,TANG Zheng-you. Microstructures,mechanical properties and strengthening mechanisms of a 23.8% Mn TRIP/TWIP steel[J]. Journal of Materials and Metallurgy, 2009, 8(3) |
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| Authors: | ZHANG Shu-juan DING Hua DING Hao ZENG Jian-min TANG Zheng-you |
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| Affiliation: | School of Materials and Metallurgy;Northeastern University;Shenyang 110004;China |
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| Abstract: | In the present work,mechanical behavior and microstructural evolution of a TRIP/TWIP steel containing 23.8% Mn was investigated and strengthening mechanisms were analyzed.The results showed that the yield strength,tensile strength and elongation were 300 MPa,610 MPa and 63% respectively.The steel exhibited continuous yielding and the strain hardening exponent was 0.48.In the primary stage of deformation,strain induced twinning was the major strengthening mechanism,while strain induced transformation became ... |
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| Keywords: | high manganese TRIP/TWIP steel microstructure mechanical property strengthening mechanism |
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