A New Method on Low-Cycle Corrosion Fatigue of Pipelines Taking Strain as Parameter

被引：0
|
作者：
Bi, Wenjun [1 ]
Zhu, Yong [1 ]
Jin, Ying [1 ]
机构：
[1] Shenyang Univ Chem Technol, Sch Mech Engn, Shenyang 110142, Liaoning, Peoples R China
来源：
CHEMICAL ENGINEERING AND MATERIAL PROPERTIES, PTS 1 AND 2 | 2012年 / 391-392卷
关键词：
Pure-bended; Low-cycle corrosion fatigue; Empirical formula;
D O I：
10.4028/www.scientific.net/AMR.391-392.323
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
As for the more and more severe corrosion fatigue of pipelines in service and the results of the former analyzing means and tests, a new method was brought forward to study the low-cycle corrosion fatigue by using a large pure-bended sample (480 mmx38 mmx12 mm). The experimental samples were obtained from the gas-transmission spiral welded pipe (X65) used in the west-east gas transport project of China. The experiential formula about crack growth speed, dl / dN = a + b . ln (p . Delta K), is established via the experimental results under two different environments of air and 3% NaCl solution, and the two constants of a and b were identified.
引用
收藏
页码：323 / 327
页数：5
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