Rapid formation of the sigma phase in 304 stainless steel during friction stir welding

被引：210
|
作者：
Park, SHC
Sato, YS
Kokawa, H
Okamoto, K
Hirano, S
Inagaki, M
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan
[2] Hitachi Ltd, Hitachi Res Lab, Hitachi, Ibaraki 3191292, Japan
来源：
SCRIPTA MATERIALIA | 2003年 / 49卷 / 12期
关键词：
austenitic stainless steel; friction stir welding; sigma phase; microstructure;
D O I：
10.1016/j.scriptamat.2003.08.022
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Rapid formation of sigma phase occurred in 304 stainless steel during friction stir welding. A possibility was suggested that the sigma formation can be accelerated by the emergence of delta-ferrite at high temperature and the subsequent decomposition of the ferrite under the high strain and recrystallization induced by friction stirring. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1175 / 1180
页数：6
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