Effects of Composition and Heat Treatment on CaS Formation in Ferritic Stainless Steel

被引：0
|
作者：
Kaneko, Shigeru [1 ]
Fukumoto, Shigeo [1 ]
机构：
[1] Nippon Steel Stainless Steel Corp, 3434 Shimata, Yamaguchi 7438550, Japan
来源：
NEW YORK TIMES BOOK REVIEW | 2024年 / 129卷
关键词：
ferritic stainless steel; inclusion; calcium sulfide; calcium-aluminate; diffusion growth; thermodynamics;
D O I：
暂无
中图分类号：
C [社会科学总论];
学科分类号：
03 ; 0303 ;
摘要：
The formation of CaS around CaO-Al2O3 in ferritic stainless steel was investigated. CaS was observed in the samples after heat treatment, although it was not detected in cast ingots. Al and S contents affect the precipitation of CaS because of the following reaction: 2[Al]+3[S]+3CaO=Al2O3+3CaS. The formation of CaS cannot be predicted by thermodynamic calculation. The growth of CaS during heat treatment is thought to be mainly controlled by S diffusion in steel. The factors for reducing CaS precipitation are discussed in this work.
引用
收藏
页码：613 / 618
页数：6
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