Effect of titanium addition on the formation and distribution of MnS inclusions in steel during solidification

被引：126
作者：
Oikawa, K
Ishida, K
Nishizawa, T
机构：
[1] TOHOKU UNIV,FAC ENGN,DEPT MAT SCI,AOBA KU,SENDAI,MIYAGI 98077,JAPAN
[2] TOHOKU UNIV,FAC ENGN,DEPT MAT SCI,SENDAI,MIYAGI 980,JAPAN
来源：
ISIJ INTERNATIONAL | 1997年 / 37卷 / 04期
关键词：
manganese sulphide; titanium oxide; nucleation; phase diagram; monotectic reaction; interface energy;
D O I：
10.2355/isijinternational.37.332
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Effect of titanium addition on the size and dispersion of MnS inclusions in Fe-0.1C-1Mn-0.02S(mass%) base alloys has been investigated by microscopy. Titanium addition brings about a marked decrease in the size of MnS inclusions which are otherwise large and globular in Ti-free specimens. The formation mechanism of MnS inclusions is discussed on the basis of phase diagram information and thermodynamics of particle engulfment during solidification. It is shown that the reduction in size of the MnS particles consequent on Ti addition is directly the result of successive nucleation events involving (Ti,Mn)O and MnS at the solid/liquid interface of iron.
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页码：332 / 338
页数：7
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