Microstructural effect on near-neutral pH stress corrosion cracking resistance of pipeline steels

被引：43

作者：

Bulger, J. T. ^{[1
]}

Lu, B. T. ^{[1
]}

Luo, J. L. ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

来源：

JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Ferrite; Pearlite; Stress Corrosion Crack; Open Circuit Potential; Anodic Dissolution;

D O I：

10.1007/s10853-006-0131-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructural effect on near-neutral pH stress corrosion cracking (SCC) resistance of pipeline steels is discussed. The crack growth rates are 30% higher in the heat-affected zone next to the pipe weld, indicating that the steel microstructure affects the near-neutral pH SCC development of pipelines. Pipeline steels with a microstructure of fine-grained bainite + ferrite have a better combination of strength and SCC resistance than ferrite + pearlite structures.

引用

页码：5001 / 5005

页数：5

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