Beneficial effect of B segregation on creep cavitation in a type 347 austenitic stainless steel

被引：68
作者：
Laha, K [1 ]
Kyono, J [1 ]
Kishimoto, S [1 ]
Shinya, N [1 ]
机构：
[1] Natl Inst Mat Sci, Mat Engn Lab, Tsukuba, Ibaraki 3050047, Japan
来源：
SCRIPTA MATERIALIA | 2005年 / 52卷 / 07期
基金：
日本学术振兴会;
关键词：
stainless steel; creep cavities; surface segregation; stress-rupture; ductility;
D O I：
10.1016/j.scriptamat.2004.11.016
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Additions of B and Cc in type 347 austenitic stainless steel increased creep rupture strength and ductility. B segregation on cavity surface in absence of S contamination suppressed creep cavity growth and provided the steel with the enhanced resistance against creep cavitation. Removal of S through Cc addition made it possible to segregate B on cavity surface. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：675 / 678
页数：4
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