Influence of Fluctuation Frequency on Stress Corrosion Cracking of X70 Pipeline Steel Welding Joint

被引：3
|
作者：
Sun, Qilei [1 ]
Shao, Weiwei [1 ]
Wang, Xinggang [1 ]
Wang, Chengbei [1 ]
机构：
[1] Shandong Jianzhu Univ, Jinan 250101, Shandong, Peoples R China
来源：
MATERIAL DESIGN, PROCESSING AND APPLICATIONS, PARTS 1-4 | 2013年 / 690-693卷
关键词：
Welding joint; Stress corrosion cracking; Fluctuant slow strain rate test (F-SSRT);
D O I：
10.4028/www.scientific.net/AMR.690-693.2668
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Influence of the fluctuation frequency on stress corrosion cracking (SCC) behavior of X70 pipeline steel welding joint was studied in the cathode potential under nearly neutral medium by fluctuant slow strain rate test (F-SSRT). SCC sensitive parts occurs in overheated zone of X70 pipeline steel welding joint under cathode potential nearly neutral medium. SCC crack can be produced from the material surface micro holes and expanding their range up the main stress plane extension, when the load fluctuation frequency increases to a certain degree, SCC crack propagate along 450 maximum shear stress plane.
引用
收藏
页码：2668 / 2672
页数：5
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