| Fe Mn C系TWIP钢的拉伸应变硬化行为研究 |
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| 引用本文： | 周小芬,符仁钰,苏钰,李麟. Fe Mn C系TWIP钢的拉伸应变硬化行为研究[J]. 钢铁, 2009, 44(3): 71-0 |
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| 作者姓名： | 周小芬 符仁钰 苏钰 李麟 |
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| 作者单位： | 1.上海大学材料科学与工程学院， 上海 200072；2.上海工程技术大学材料工程学院, 上海 201620 |
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| 基金项目： | 先进钢铁材料技术国家工程研究中心项目(50671061) |
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| 摘 要： | 通过试验研究了Fe Mn C系TWIP钢的拉伸应变硬化行为。结果表明：试验钢在拉伸过程中的应变硬化表现为阶段性多n值行为。其应变硬化机制有两种：在0.4%～3%的应变区间为位错强化阶段，10％～50%的应变区间为孪晶强化阶段。在这两个区间内n值皆为定值，而在4％～10％的应变区间n值呈不断上升趋势。
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| 关 键 词： | TWIP钢 应变硬化 形变孪晶 |
Tensile Strain Hardening Behavior of Fe-Mn-C TWIP Steels |
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| ZHOU Xiao-fen,FU Ren-yu,SU Yu,LI Lin. Tensile Strain Hardening Behavior of Fe-Mn-C TWIP Steels[J]. Iron & Steel, 2009, 44(3): 71-0 |
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| Authors: | ZHOU Xiao-fen FU Ren-yu SU Yu LI Lin |
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| Affiliation: | 1.School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China；2.School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China |
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| Abstract: | The strain hardening behaviour of Fe-Mn-C TWIP steel was investigated.It was showed there existed different n values in different phases during the tensile strain hardening of samples.There were also two strain hardening mechanisms: in the region of 0.4%-3% strain,samples were strengthened by dislocation piling,but in the region of 10%-50% strain,by twinning.In these two regions,the n value kept constant,However,n increased continuously in the region of 4%-10%.The microstructure observation showed that the ... |
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| Keywords: | TWIP steel strain hardening deformation twin |
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