文献类型：期刊文献

英文题名：Pit to crack transition behavior in proportional and non-proportional multiaxial corrosion fatigue of 304 stainless steel

作者：Huang, Yuhui[1];Tu, Shan-Tung[1];Xuan, Fu-Zhen[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China

年份：2017

卷号：184

起止页码：259

外文期刊名：ENGINEERING FRACTURE MECHANICS

收录：;EI(收录号：20173804170022);WOS:【SCI-EXPANDED(收录号:WOS:000413577400020)】；

基金：This work was financially sponsored by Natural Science Foundation of Shanghai (16ZR1408300) and Fundamental Research Funds for the Central Universities (222201514316). Additional support from the 111 project under the contract no. B13020 is also gratefully acknowledged.

语种：英文

外文关键词：Environmentally assisted cracking; Crack initiation; Finite element analysis; Fracture mechanics

摘要：Multiaxial corrosion fatigue tests with interruption were carried out on 304 stainless steel in 6 wt.% FeCl3 solution at room temperature. Pit initiation, growth and pit to crack transition behavior under proportional and non-proportional loading were investigated. Under proportional loading, significant sharper pits, higher initial pit density and growth rate were observed in comparison with non-proportional loading. The pit depth growth rate under proportional loading was larger than those under non-proportional loading and without loading. Pit to crack transition mechanism was mainly controlled by mechanical assisted local dissolution under proportional loading while additional hardening under non- proportional loading. (C) 2017 Elsevier Ltd. All rights reserved.