文献类型：期刊文献

英文题名：Anisotropic 3D growth of corrosion pits initiated at MnS inclusions for A537 steel during corrosion fatigue

作者：Ma, Jin[1];Zhang, Bo[1];Wang, Jianqiu[1];Wang, Guozhen[2];Han, En-Hou[1];Ke, Wei[1]

机构：[1]Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China;[2]E China Univ Sci & Technol, Sch Mech & Power Engn, MOE Key Lab Safety Sci Pressurized Syst, Shanghai 200237, Peoples R China

年份：2010

卷号：52

期号：9

起止页码：2867

外文期刊名：CORROSION SCIENCE

收录：;EI(收录号：20102613041331);WOS:【SCI-EXPANDED(收录号:WOS:000280272200015)】；

基金：This work was carried out with the financial support of National Key Technology R&D Program (2007BAB27B05).

语种：英文

外文关键词：Steel; SEM; Corrosion fatigue; Pitting corrosion

摘要：The 3D growth behaviour of pits initiated at MnS inclusions for A537 steel under cyclic load condition has been investigated by confocal scanning laser microscope and finite element analysis. The results indicated the growth of pit for cyclic-stressed samples showed anisotropic behaviour. Significant higher growth rate was found in the direction perpendicular to load axis. Finite element analysis indicated that localized plastic strain played an important role on pit growth. The growth kinetics of pit in width direction is dominated by plastic deformation. Coalescences of pits further increase the growth rate of pit as predicted by finite element analysis. (C) 2010 Elsevier Ltd. All rights reserved.