Stress corrosion cracking of E690 steel as a welded joint in a simulated marine atmosphere containing sulphur dioxide

被引：140

作者：

Ma, H. C. ^{[1
]}

Liu, Z. Y. ^{[1
]}

Du, C. W. ^{[1
]}

Wang, H. R. ^{[1
]}

Li, X. G. ^{[1
,2
]}

Zhang, D. W. ^{[1
]}

Cui, Z. Y. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Ctr Corros & Protect, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 100卷

基金：

中国国家自然科学基金;

关键词：

Low alloy steel; AFM; SEM; Stress corrosion; Welding; HEAT-AFFECTED ZONE; HIGH-STRENGTH STEEL; MARTENSITE-AUSTENITE CONSTITUENT; HYDROGEN-INDUCED CRACKING; OFFSHORE PLATFORM STEEL; CARBON BAINITIC STEEL; LOW-ALLOY STEEL; STAINLESS-STEEL; PIPELINE STEEL; NONMETALLIC INCLUSIONS;

D O I：

10.1016/j.corsci.2015.08.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stress corrosion cracking (SCC) behavior and mechanism of E690 welded joint in simulated marine atmosphere containing SO2 were investigated using SSRT method and electrochemical measurements. Results showed that it had very high SCC susceptibility in this environment with a combined mechanism of anodic dissolution and hydrogen embrittlement (HE). The intercritical heat affected zone in the welded joint was the most vulnerable location to SCC because this zone has less strength, more negative potential, and higher corrosion current density. The M-A constituents had a detrimental effect on SCC behavior in the synergetic effect of stress concentration, micro-galvanic corrosion, and HE. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：627 / 641

页数：15

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