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| 奥氏体中锰钢加工硬化的微观机制 | |
| 引用本文： | 朱瑞富 朝志强. 奥氏体中锰钢加工硬化的微观机制[J]. 钢铁研究学报, 1997, 9(1): 30-33 |
| 作者姓名： | 朱瑞富 朝志强 |
| 作者单位： | 山东工业大学 |
| 摘 要： | 应用固体与分子经验电子理论对中锰钢奥氏体的价电子结构进行的计算表明，有Ｃ－Ｍｎ原子的偏聚；用ＴＥＭ组织观察和能谱分析发现奥氏体中有锰元素的偏聚；在ＴＥＭ薄膜原位动态拉伸变形试验中观察到应变诱发马氏体中有锰元素的偏聚；在ＴＥＭ薄膜原位动态拉伸变形试验中观察到应变诱发马氏体的形核与长大及高密度位错产生的过程；能谱分析发现马氏体相变区锰含量较低，从而提出应变诱发马氏体相变强化与高位错强化的双重作用是中锰 |
| 关 键 词： | 中锰钢 位错 硬化 奥氏体钢 |
Microscopic Mechanism of Work Hardening of Austenitic Medium Manganese Steel |
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| Zhu Ruifu Chao Zhiqiang Wei Tao Lu Yupeng Li Shitong Wang Shiqing. Microscopic Mechanism of Work Hardening of Austenitic Medium Manganese Steel[J]. Journal of Iron and Steel Research, 1997, 9(1): 30-33 | |
| Authors: | Zhu Ruifu Chao Zhiqiang Wei Tao Lu Yupeng Li Shitong Wang Shiqing |
| Affiliation: | Zhu Ruifu Chao Zhiqiang Wei Tao Lu Yupeng Li Shitong Wang Shiqing |
| Abstract: | Based on the empirical electron theory of solids and molecules (EET), the valence electron structure of medium manganese steel was calculated, and the presence of C Mn atomic segregation was proved. The segregation of element Mn was discovered by means of TEM observation and energy spectrum analysis. Through in situ TEM tension tests, the process of nucleation and growth of strain induced martensite and emerging of high density dislocations were observed, and lower content of Mn in micro region of martenstic transformation was verified by energy spectrum analysis. As a result, the principal mechanism of work hardening of medium manganese steel is a combination of strain induced martensitic transformation and high density dislocations. |
| Keywords: | austenitic medium manganese steel strain induced martensite dislocation mechanism of work hardening |
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