%0 Journal Article
%T EFFECT OF DYNAMIC STRAIN AGING ON PURE BENDING FATIGUE STRENGTH OF AUSTENITIC STAINLESS STEEL
%A CHEN Wenzhe QIAN Kuangwu FuZhou University
%A Fuzhou
%A Fujian
%A China Lecturer
%A Deptof Mechanical Engineering
%A Fuzhou University
%A Fuzhou
%A Fujian
%A China
%A <br>CHEN Wenzhe QIAN Kuangwu FuZhou University
%A Fuzhou
%A Fujian
%A China Lecturer
%A Dept.of Mechanical Engineering
%A Fuzhou University
%A Fuzhou
%A Fujian
%A China
%J 金属学报(英文版)
%D 1989
%I 
%X The effect of various dynamic strain aging(DSA)pre-treatment processes on pure bending fatigue strength of an 18-8 austenitic stainless steel was investigated.The results show that DSA pre-treatment processes increase remarkably the fatigue strength and the strengthening effects increase with increasing pre-strain temperature and pre-strain.The fatigue limit of specimens pre-treated by DSA is 87% higher than that by solution treatment,and 20% high- er than that by cold-working.TEM observations show that the uniform and stable dislocation networks with high density formed after DSA pre-treatment,which suppress effectively the initiation and propugation of fatigue cracks and increase the fatigue strength of materials.
%K dynamic strain aging(DSA)
%K austenitic stainless steel
%K fatigue strength<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=6FDD23F2FB8075B7A4D262D6500215A8&yid=1833A6AA51F779C1&vid=0B39A22176CE99FB&iid=94C357A881DFC066&sid=3356A7630A93A219&eid=8C27CCA578E52082&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=2