%0 Journal Article
%T EFFECT OF DYNAMIC STRAIN AGING ON LOW CYCLE FATIGUE BEHAVIOUR OF 18-8 AUSTENITIC STAINLESS STEEL
%A PENG Kaiping CHEN Wenzhe OIAN Kuangwu Fuzhou University
%A Fuzhou
%A China teaching assistant
%A <br>PENG Kaiping CHEN Wenzhe OIAN Kuangwu Fuzhou University
%A Fuzhou
%A China teaching assistant
%J 金属学报(英文版)
%D 1993
%I 
%X Studies were made of the symmetric tensile-compressive low cycle fatigue behaviour and the influence of dynamic strain aging(DSA)pre-treatment of 18-8 austenitic stainless steel. Within the testing amplitude range of strain.±0.5 % to±1.5 %,the three processes of cyclic hardening,cyclic saturation and cyclic softening were observed.In the same amplitude of strain,the peak stress of the samples pre-treated by DSA is higher than that of solid-solu- tion and cold working pre-treatment,but no remarkable differences of the fatigue lives of them were found.TEM observation shows that the uniform and stable dislocation networks with high density form after DSA pre-treatment,which increases the cyclic peak stress.The cyclic softening results from the low dislocation density and elongated cell structure with low energy.
%K 18-8 austenitic stainless steel
%K dynamic strain aging
%K low cycle fatigue<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=7100DA66D700E3C00F7BAEDEBC3357B5&yid=D418FDC97F7C2EBA&vid=B31275AF3241DB2D&iid=B31275AF3241DB2D&sid=5335AD3CFE6E14EA&eid=F10601728A1E9BEA&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=1&reference_num=8