Effect of serrated grain boundary on stress corrosion cracking of Alloy 600

被引：14
|
作者：
Kim, H. P. [1 ]
Choi, M. J. [1 ]
Kim, S. W. [1 ]
Kim, D. J. [1 ]
Lim, Y. S. [1 ]
Hwang, S. S. [1 ]
机构：
[1] Korea Atom Energy Res Inst, Nucl Mat Res Div, 989-111 Daedeok Daero, Daejeon 305353, South Korea
来源：
NUCLEAR ENGINEERING AND TECHNOLOGY | 2018年 / 50卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
Alloy; 600; Stress corrosion cracking; Serrated grain boundary; Tensile stress; NaOH; HIGH-TEMPERATURE WATER; NI-BASE ALLOYS; STEAM-GENERATOR; RESISTANCE; SUPERALLOY; INITIATION; MECHANISM; BEHAVIOR; DESIGN; TUBES;
D O I：
10.1016/j.net.2018.05.009
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The effect of a serrated grain boundary on stress corrosion cracking (SCC) of Alloy 600 was investigated in terms of improvement of SCC resistance. Serrated grain boundaries and straight grain boundaries were obtained by controlled heat treatment. SCC cracks preferentially initiated and grew at grain boundaries normal to the tensile loading axis. Resolved tensile stress normal to the grain boundary was lower in serrated grain boundaries compared to straight grain boundaries. The specimen with serrated grain boundaries showed higher SCC resistance than that with straight grain boundaries due to a lower resolved tensile stress normal to the grain boundary. (C) 2018 Korean Nuclear Society, Published by Elsevier Korea LLC.
引用
收藏
页码：1131 / 1137
页数：7
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