| 40CrMn合金奥氏体结构及相变行为的电子理论研究 |
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| 引用本文： | 周飞,李中华,纪嘉明,李志章. 40CrMn合金奥氏体结构及相变行为的电子理论研究[J]. 材料科学与工程学报, 2000, 18(2): 64-68 |
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| 作者姓名： | 周飞 李中华 纪嘉明 李志章 |
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| 作者单位： | 江苏理工大学材料系!镇江，212013，江苏理工大学材料系!镇江，212013，江苏理工大学材料系!镇江，212013，浙江大学材料系!杭州，310027 |
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| 摘 要： | 利用“固体与分子经验电子理论”的键距差分析法建立了 4 0 Cr Mn合金奥氏体的价电子结构 ,研究了合金中 Cr,Mn对其 C-曲线的影响。分析表明 :4 0钢中加入 Cr,Mn元素后 ,较强的 C-Me强键络阻碍了合金奥氏体的相变 ,从而提高了合金的淬透性 ,并引起 C曲线的拖曳效应。
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| 关 键 词： | 40-CrMn合金 C-曲线 价电子结构 相变 奥氏体 |
Study on the Valence Electron Theory of Structure and Phase Trans-formation for 40CrMn Alloying Austenite |
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| ZHOU Fei,LI Zhong|hua,JI Jia|ming,LI Zhi|zhang. Study on the Valence Electron Theory of Structure and Phase Trans-formation for 40CrMn Alloying Austenite[J]. Journal of Materials Science and Engineering, 2000, 18(2): 64-68 |
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| Authors: | ZHOU Fei LI Zhong|hua JI Jia|ming LI Zhi|zhang |
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| Affiliation: | ZHOU Fei1,LI Zhong|hua1,JI Jia|ming1,LI Zhi|zhang2 |
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| Abstract: | The valence electron structure of 40CrMn alloying austenite has been established by using bond length difference(BLD) method of the empirical electron theory of solids and molecules. The effects of Cr and Mn in alloy on the C|curves have been studied. It is shown that since Cr and Mn melt into austenite, the combining strength among atoms was enhanced. The higher C|Me combining energy resists transformation of solid state austenite and then the transformation point was decreased, which was beneficial to improving the quenching properties of alloy and leading to C|curves dragging effect. |
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| Keywords: | CrMn alloy C|curves Valence electron structure Transformation Austenite |
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