%0 Journal Article
%T INFLUENCE OF RESIDUAL STRESS AND SURFACE MORPHOLOGY ON FATIGUE PROPERTIES OF STEEL 60Mn
%A KANG Zengqiao GAI Xiuying LI Jiabao WANG Zhongguang State Key Laboratory for Fatigue
%A Fracture of Materials Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A China Research Assistant
%A <br>KANG Zengqiao GAI Xiuying LI Jiabao WANG Zhongguang State Key Laboratory for Fatigue and Fracture of Materials Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A China Research Assistant
%A Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A China
%J 金属学报(英文版)
%D 1992
%I 
%X Influence of residual stress and surface morphology induced by shot-peening on fatigue behav- ior of a medium temperature tempered spring steel 60 Mn has been studied.The compressive residual stress induced in the near-surface region may improve fatigue limit from 930 to 1010 MPa,and the very high tensile residual stress in the interior may reduce it from 1010 to 940 MPa,whereas the severe surface damage may cause a drop-off of it from 1010 down to 800 MPa.Fatigue cracks initiated in such position where the equivalent Mises stress,including residual stress,exceeded the local strength of the material.The compressive residual stress, induced by shot-peening,may intensify the effect of crack closure,so as to decrease the crack growth rate.
%K shot-peening
%K fatigue limit
%K residual stress
%K surface morphology
%K sleel 60 Mn<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=F3DC718C7C049861167191922BC4D7E5&yid=F53A2717BDB04D52&vid=94C357A881DFC066&iid=B31275AF3241DB2D&sid=F18BA6286A889C1C&eid=07C6E4664BB7C5DA&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=14