INVESTIGATION ON THE MECHANICAL DEGRADATION OF A STEEL LINE PIPE DUE TO HYDROGEN INGRESS DURING EXPOSURE TO A SIMULATED SOUR ENVIRONMENT

被引:21
作者
CHATTORAJ, I
TIWARI, SB
RAY, AK
MITRA, A
DAS, SK
机构
[1] NATL MET LAB,DIV MTE,JAMSHEDPUR,BIHAR,INDIA
[2] NATL MET LAB,DIV MTP,JAMSHEDPUR,BIHAR,INDIA
关键词
D O I
10.1016/0010-938X(95)00001-Z
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The loss of ductility of a longitudinally welded steel pipe, brought about by hydrogen ingress during exposure to simulated sour environments, was investigated. The material was found to be very prone to hydrogen induced cracking (HIC). The presence of hydrogen-induced cracks were not necessarily detrimental to the ductility as demonstrated by ex-situ straining. It was concluded that mobile lattice hydrogen was responsible for ductile loss, while trapped hydrogen was responsible for HIC.
引用
收藏
页码:885 / 896
页数:12
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