论文成果
Crack propagation rate of hydrogen-induced cracking in high sulfur-containing pipelines
摘要:Hydrogen-Induced Cracking (HIC) is one of the main failure models of pipeline steels that are utilized to gather pipeline networks and long-distance pipeline networks within high sulfur-containing gas fields. This phenomenon is mainly caused by the combined effects of hydrogen and stress after the hydrogen atoms or ions in the transmission medium entering into the steel. This can produce a stress corrosion effect on the materials and thus lead to a decrease of fracture ductile or degradation of other properties. In this paper, a micro-fracture shear band fractal model of HIC has been proposed and the mechanism of HIC has been studied. Both the shape of the fracture process zone and the step length of hydrogen-induced crack propagation were integrated, thus building expressions that describe the fractal rate of each step of HIC. Based on this, the fractal crack propagation rates of HIC in pipelines 16 Mn and 20 steel were calculated under certain working conditions and H
© 2021 Elsevier Ltd
ISSN号:1350-6307
卷、期、页:v 123,
发表日期:2021-05-01
影响因子:2.896800
期刊分区(SCI为中科院分区):三区
收录情况:SCIE(科学引文索引网络版),EI(工程索引)
发表期刊名称:Engineering Failure Analysis
参与作者:Zhang, Hewei
第一作者:董绍华,张来斌
论文类型:期刊论文
论文概要:董绍华,张来斌,Zhang, Hewei,Crack propagation rate of hydrogen-induced cracking in high sulfur-containing pipelines,Engineering Failure Analysis,2021,v 123,
论文题目:Crack propagation rate of hydrogen-induced cracking in high sulfur-containing pipelines