Copper Contamination Cracking in a Pipeline Repair Weld

被引：0

作者：

Slone, Connor ^{[1
]}

Mostaed, Ehsan ^{[1
]}

Cline, Cory ^{[1
]}

Kaplowitz, Dan ^{[1
]}

Ganot, Gabriel ^{[1
]}

James, Brad ^{[1
]}

Aguiar, Dave ^{[2
]}

机构：

[1] Exponent Inc, Mat & Corros Engn Practice, Menlo Pk, CA 94025 USA

[2] Pacific Gas & Elect, Transmiss Integr Management Program, San Ramon, CA USA

来源：

JOURNAL OF FAILURE ANALYSIS AND PREVENTION | 2024年 / 24卷 / 02期

关键词：

Copper contamination cracking; Double-submerged arc weld; Pipeline; STEEL BEAMS; BUCKLING ANALYSIS; LOCKING;

D O I：

10.1007/s11668-024-01856-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crack-like indications were identified in a gas transmission pipeline during a routine integrity assessment. Visual examination and CT scanning confirmed the presence of cracks on the pipe internal diameter and throughout the wall thickness near the weld seam. Fractographic and metallographic analysis indicated that the cracking occurred in numerous repair welds that were made prior to the final pipe seam weld. The presence of copper on crack faces and within internal cracks, as well as the intergranular path of those cracks, indicated the cracking occurred by copper contamination cracking associated with repair welding.

引用

页码：805 / 816

页数：12

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