Fatigue crack growth behavior in girth weld of natural gas transmission pipelines

被引：3
|
作者：
Kim, Young Pyo [1 ]
Kim, Cheol Man [1 ]
Kim, Woo Sik [1 ]
Shin, Kwang Seon [2 ]
机构：
[1] Korea Gas Corp, R&D Div, 638-1,2 Dong, Kyonggi Do 426790, South Korea
[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea
来源：
MECHANICAL BEHAVIOR OF MATERIALS X, PTS 1AND 2 | 2007年 / 345-346卷
关键词：
gas pipeline; API 5L X65; girth weld; fatigue crack growth rate; stress ratio;
D O I：
10.4028/www.scientific.net/KEM.345-346.303
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A clear understanding of fatigue properties for the pipeline steel and its weld is important to provide information for pipeline design during pipeline construction and predict pipeline fatigue life during pipeline operation. The materials used in this study are API 5L X65 pipeline steel generally used for natural gas transmission. This pipeline was welded by gas tungsten are welding (GTAW) and shielded metal arc welding (SMAW) with V-groove configuration. The fatigue crack growth behaviors of pipeline steel and its girth weld according to crack growth directions and stress ratios were investigated over a wide range of stress intensities in laboratory air.
引用
收藏
页码：303 / +
页数：2
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