Thermodynamic analysis of carbon migration in W1-1.0C steel in plasma surface chromizing

被引：4
|
作者：
Chi, CZ [1 ]
He, ZY
Gao, Y
Xu, Z
机构：
[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China
来源：
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2006年 / 13卷 / 02期
基金：
中国国家自然科学基金;
关键词：
carbon steel; chromizing; thermodynamic analysis; surface alloying; carbon migration;
D O I：
10.1016/S1005-8850(06)60029-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
W1-1.0C steel was chromized at 1173 K with double glow plasma surface alloying process, and the distribution of Fe, Cr, and C contents in the chromized layer was measured using glow discharge spectrum analysis (GDA). The behavior and mechanism of carbon migration during the formation of chromized layer were studied through thermodynamic analysis and calculation. The gradient of carbon chemical potential was regarded as the driving force of carbon migration. An equation was derived to describe the carbon content varying with the chromium content within the carbon-rich region. The calculated results front the equation approximated closely to the experimental ones.
引用
收藏
页码：131 / 134
页数：4
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