Effect of Mn on solubility of Ti-sulfide and Ti-carbosulfide in ultra-low C steels

被引：10
|
作者：
Mizui, Naomitsu [1 ]
Takayama, Toru [1 ]
Sekine, Kazuyoshi [2 ]
机构：
[1] Sumitomo Met Ind Ltd, Corp Reasarch & Dev Labs, Amagasaki, Hyogo 6600891, Japan
[2] Yokohama Natl Univ, Grad Sch Environm & Informat Sci, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan
来源：
ISIJ INTERNATIONAL | 2008年 / 48卷 / 06期
关键词：
ultra-low C steel; Ti; sulfide; carbosulfide; Mn; solubility;
D O I：
10.2355/isijinternational.48.845
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
To clarify the thermodynamic stability of Ti(4)C(2)S(2) and TiS in ULC Ti-added IF steels, extraction by potentiostatic electrolysis method and chemical analysis were conducted with ULC Ti-added IF steels containing various amounts of Mn and heated at various temperatures. As the results, the solubilities of Ti(4)C(2)S(2) and TiS increased with an increase in Mn content. Ti(4)C(2)S(2) was more stable than TiS between 950 and 1250 degrees C. Following solubility products were obtained. log[Ti] . [C](0.5) . [S](0.5) = 0.392-7 004/T-(4.783-7 401/T) . [Mn] log[Ti](2/3) . [S] = -0.021-5.847/T-(3.360-5 195/T) . [Mn].
引用
收藏
页码：845 / 850
页数：6
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