Possible reasons for selectivity of corrosive tube cracking in underground gas-main pipelines

被引：1

作者：

Surkov, YP ^{[1
]}

Gorchakov, VA ^{[1
]}

Rybalko, VG ^{[1
]}

Surkov, AY ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia

来源：

RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2005年 / 41卷 / 06期

关键词：

Structural Material; Environmental Effect; External Surface; Probable Reason; Peculiar Feature;

D O I：

10.1007/s11181-005-0183-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The environmental effect of corrosion can cause nucleation and growth of stress-corrosion-caused cracks on the external surfaces of gas-pipeline tubes, thus leading to accidental breakdowns. Peculiar features of corrosive and stress-corrosive flaws along a pipeline route are analyzed in this study and probable reasons for nucleation and propagation of stress-corrosion-caused cracks are discussed. It is forecasted that crack sources can be gradually exhausted with an increase in the operating time of the existing gas-main-pipeline system and this type of damage will decay naturally.

引用

页码：403 / 407

页数：5