Corrosion fatigue cracking and failure risk assessment of pipelines

被引：14

作者：

Dmytrakh, Ihor ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Karpenko Physicomech Inst, UA-79601 Lvov, Ukraine

来源：

SAFETY, RELIABILITY AND RISKS ASSOCIATED WITH WATER, OIL AND GAS PIPELINES | 2008年

关键词：

power-generating unit; feeding pipelines; exploited metal; operating environments; corrosion damaging; defects; corrosion fatigue crack; crack growth rate; threshold and critical crack depth; diagram of fracture risk assessment;

D O I：

10.1007/978-1-4020-6526-2_6

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Problem of corrosion and corrosion fatigue damaging of feeding pipelines of heat-and-power generating units under long-term operating conditions is considered. The two main factors were taken into account: degradation of metals properties and purity of operating aqueous environment that causes by ecological pollution of natural water scoop. Corrosion fracture mechanics approach for assessment of workability and fracture risk of pipelines with crack-like defects is proposed, which is based on conception of threshold and critical cracks depth and also corrosion fatigue crack growth parameters.

引用

页码：99 / 113

页数：15

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