Calculation of phase equilibria between austenite and (Nb, Ti, V)(C, N) in microalloyed steels

被引：85
|
作者：
Inoue, K
Ishikawa, N
Ohnuma, I
Ohtani, H
Ishida, K
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan
[2] Nippon Kokan KK, Fukuyama, Hiroshima 7210931, Japan
[3] Tohoku Univ, Interdisciplinary Res Ctr, Sendai, Miyagi 9808578, Japan
来源：
ISIJ INTERNATIONAL | 2001年 / 41卷 / 02期
关键词：
microalloyed steels; thermodynamic analysis; phase separation; carbide; nitride; solubility product; IF steel;
D O I：
10.2355/isijinternational.41.175
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Thermodynamic calculations of the phase equilibria between austenite (gamma) and complex carbonitrides containing Nb, Ti and V, (Nb, Ti, V)(C, N), were performed. The solubility product and formation energy of each carbide and nitride as well as the interaction parameters between components were evaluated. Experimental investigation on phase separation in the complex carbonitrides was also carried out using STEM-EDX and X-ray diffraction. The immiscibility of carbonitride was found to strongly affect the phase equilibria even when the content of microalloying elements in IF steels was very low.
引用
收藏
页码：175 / 182
页数：8
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