ε-Carbide in alloy steels: First-principles assessment

被引:49
作者
Jang, Jae Hoon [1 ]
Kim, In Gee [1 ]
Bhadeshia, H. K. D. H. [1 ,2 ]
机构
[1] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Pohang 790784, South Korea
[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
基金
新加坡国家研究基金会;
关键词
Steels; epsilon-Carbide; Cementite; Silicon; TRANSFORMATION; AUSTENITE; IRON;
D O I
10.1016/j.scriptamat.2010.03.026
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
There is now a large number of sophisticated steels which rely on silicon as an alloying addition with the purpose of avoiding the precipitation of cementite. However, there is also evidence that the silicon can enhance the formation of epsilon-carbide; the mechanism of this effect is not understood and the absence of appropriate thermodynamic data makes it impossible to conduct calculations. We report here some ab initio calculations which throw light on both of these issues and suggest novel experiments. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:121 / 123
页数:3
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