%0 Journal Article
%T EFFECT OF DYNAMIC STRAIN AGING ON LOW CYCLE FATIGUE BEHAVIOUR OF 18--8 AUSTENITIC STAINLESS STEEL<br>动态应变时效对18—8型奥氏体不锈钢低周疲劳行为的影响
%A CHEN Wenzhe
%A QIAN Kuangwu Fuzhou UniversityPENG Kaiping
%A assistant
%A <br>彭开萍
%A 陈文哲
%A 钱匡武
%J 金属学报
%D 1993
%I 
%X Studies were made of the symmetric tensile-compressive low cyclic fatiguebehaviour and dynamic strain aging (DSA) pre-treatment influenced on 18-8 austeniticstainless steel. Within the tested amplitude range of strain: ±0.5%-±1.5%, the three pro-cesses of cyclic hardening, cyclic saturation and cyclic softening were observed. In the sameamplitude of strain, the peak stress of the samples pre-treated by DSA is higher than that ofsolid-solution and cold working pre-treatment, but almost no differences of the fatigue livesof them were found. TEM observation shows that the uniform and stable dislocation net-works with high density form after DSA pre-treatment, which increases the cyclic peak stress.The cyclic softening is resulted from the low dislocation density and elongated cell structurewith low energy.
%K 18-8 austenitic stainless steel
%K dynamic strain aging
%K low cycle fatigue<br>奥氏体不锈钢
%K 应变时效
%K 低周疲劳
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=5F8F7E95DB1DE4CB4CE7309D5F23B63F&yid=D418FDC97F7C2EBA&vid=771469D9D58C34FF&iid=B31275AF3241DB2D&sid=BE33CC7147FEFCA4&eid=B6DA1AC076E37400&journal_id=0412-1961&journal_name=金属学报&referenced_num=2&reference_num=8