Influence of Cr, C and Ni on intergranular segregation and precipitation in Ti-stabilized stainless steels

被引：30
作者：
Kim, Jeong Kil [1 ,2 ]
Kim, Yeong Ho [2 ]
Kim, Kyoo Young [1 ]
机构：
[1] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Pohang 790784, South Korea
[2] POSCO Tech Res Labs, Pohang 790704, South Korea
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 04期
关键词：
Stainless steels; Segregation; Precipitation; TEM; CORROSION BEHAVIOR; SENSITIZATION; RESISTANCE; CARBIDES; GRADE;
D O I：
10.1016/j.scriptamat.2010.05.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of Cr, C and Ni on intergranular segregation and precipitation has been investigated with various Ti-stabilized stainless steels. TiC precipitates with Cr segregation were observed along the grain boundaries in ferritic and austenitic stainless steels with a carbon content of more than similar to 0.0060 wt.%, but not in ferritic stainless steel with extremely low carbon (0.0023 wt.%). Based on the results of the analysis, practices to avoid intergranular corrosion of Ti-stabilized stainless steels are proposed. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：449 / 451
页数：3
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