Stress corrosion cracking of fusion boundary for 316L/52M dissimilar metal weld joints in borated and lithiated high temperature water

被引：31

作者：

Zhu, Ruolin ^{[1
,2
]}

Wang, Jianqiu ^{[1
]}

Zhang, Zhiming ^{[1
]}

Han, En-Hou ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China

[2] Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China

来源：

CORROSION SCIENCE | 2017年 / 120卷

基金：

中国国家自然科学基金;

关键词：

Stainless steel; Nickel; SEM; Welding; Stress corrosion; AUSTENITIC STAINLESS-STEELS; HEAT-AFFECTED ZONE; DISSOLVED-OXYGEN; GROWTH RATE; COLD WORK; SAFE-END; NICKEL-ALLOYS; LOADING MODE; OXIDE-FILMS; BEHAVIOR;

D O I：

10.1016/j.corsci.2017.01.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The stress corrosion cracking (SCC) crack growth rates (CGRs) at the fusion boundary (FB) for 316L/52M weld joints were measured using direct current potential drop systems in borated and lithiated high temperature water. The cracks propagated along the FB and were blocked after propagating into the composition transient zone. The cracking mode is both intergranular and transgranular. The CGRs at the FB are similar to those in the heat-affected zone (HAZ) in oxygenated water, but slightly higher than those in the HAZ in hydrogenated water. The temperature dependences of CGR in both hydrogenated and oxygenated water are discussed. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：219 / 230

页数：12

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