低碳钢奥氏体中Ti夹杂溶解度积的分析

特殊钢 ›› 2010, Vol. 31 ›› Issue (2): 8-9.

低碳钢奥氏体中Ti夹杂溶解度积的分析

亓海全^1,2, 雍岐龙², 雍兮^2,3, 陈明昕²

1昆明理工大学机电学院，昆明650093；
2钢铁研究总院，北京100081；
3中科院计算所，北京100190

收稿日期:2009-08-31 出版日期:2010-04-01 发布日期:2022-11-15
作者简介:亓海全(1981-),男，博士，微合金钢研究。

An Analysis on Solubility Products for Ti Inclusions in Austenite of Low Carbon Steels

Qi Haiquan^1,2, Yong Qilong², Yong Xi^2,3 , Chen Mingxin²

1 Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650093 ;
2 Central Iron and Steel Research Institute, Beijing 100081 ；
3 Institute of Computing Technology, Chinese Academy of Science, Beijing 100190

Received:2009-08-31 Published:2010-04-01 Online:2022-11-15

摘要/Abstract

摘要： 对低碳钢(含无间隙原子-IF钢)奥氏体中Ti的各类夹杂物固溶度积进行了计算和定性比较。结果表明,在不考虑其它因素影响的情况下,在950～1 250℃,TiN具有最小的固溶度积,TiC具有最大的固溶度积,而TiS和Ti₄C₂S₂则处其间。表明低碳钢在高温时优先析出的应该是TiN,其次是TiS和Ti₄C₂S₂,而TiC析出则处在最后。

关键词: 低碳钢, 奥氏体, Ti夹杂, 溶解度

Abstract: Solubility products for Ti inclusions in austenite of low carbon steels (including interstitial free - IF steel) have been calculated and compared qualitatively. Results show that without considering effect of other factors, at 950 ~ 1 250 ℃ , the TiN has minimum solubility product and the TiC has maximum solubility product while that of TiS and Ti₄C₂S₂ are mediums. It indicates that at high temperature the initial precipitate should be TiN, then TiS, Ti₄C₂S₂, and last TiC.

Key words: Low Carbon Steel, Austenite, Ti Inclusions, Solubility

亓海全, 雍岐龙, 雍兮, 陈明昕. 低碳钢奥氏体中Ti夹杂溶解度积的分析[J]. 特殊钢, 2010, 31(2): 8-9.

Qi Haiquan, Yong Qilong, Yong Xi, Chen Mingxin. An Analysis on Solubility Products for Ti Inclusions in Austenite of Low Carbon Steels[J]. Special Steel, 2010, 31(2): 8-9.

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