| 锰元素对TWIP钢层错能和变形机制的影响 |
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| 引用本文： | 代永娟,唐荻,米振莉,江海涛,吕建崇.锰元素对TWIP钢层错能和变形机制的影响[J].材料工程,2009(7). |
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| 作者姓名： | 代永娟 唐荻 米振莉 江海涛 吕建崇 |
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| 作者单位： | 北京科技大学,高效轧制国家工程中心,北京,100083 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 根据层错能的热力学模型,计算了Fe-XMn-3Si-3Al 系高强度高塑性TWIP钢的层错能.计算结果表明,随锰含量增加Fe-XMn-3Si-3Al系 TWIP钢层错能增加,在此基础上讨论了锰含量对Fe-XMn-3Si-3Al 系TWIP钢变形机制、力学性能和微观组织的影响.在合金中Mn含量的提高使层错能增加,而层错能的增加使Fe-XMn-3Si-3Al系钢表现出不同的变形机制,即逐渐由TRIP效应变为TWIP效应;同时随着Mn含量的提高,合金的抗拉强度降低,而塑性提高.
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| 关 键 词： | 层错能 TWIP钢 锰含量 变形机制 |
The Influence of Manganese on the Stacking Fault Energy and Deformation Mechanisms of the TWIP Steel |
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| DAI Yong-juan,TANG Di,MI Zhen-li,JIANG Hai-tao,LU Jian-chong.The Influence of Manganese on the Stacking Fault Energy and Deformation Mechanisms of the TWIP Steel[J].Journal of Materials Engineering,2009(7). |
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| Authors: | DAI Yong-juan TANG Di MI Zhen-li JIANG Hai-tao LU Jian-chong |
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| Abstract: | The stacking fault energy of the Fe-XMn-3Si-3Al system alloys was calculated according to the thermodynamic model of stacking fault energy. The calculated results showed that the stacking fault energy of Fe-XMn-3Si-3Al system alloys increased with increasing manganese content. The influence of Manganese content on the deformation mechanisms, mechanical properties and microstructure of Fe-XMn-3Si-3Al system alloys was discussed based on above results. With the increasing of manganese content, the Fe-XMn-3Si-3Al system alloys show different deformation mechanisms from the TRIP effect turns to the TWIP effect. At the same time, the strength decreasing and the elongation increasing. |
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| Keywords: | stacking fault energy TWIP steel manganese content deformation mechanism |
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