%0 Journal Article %T EFFECTS OF MICROSTRVCTURE ON FATIGUE CRACK GROWTH BEHMIOR IN Ni-BASE SUPERALLOY GH586 %A SS Xie %A XF Pan %A TL Wang %A ZX Wang %A HC Yang %A Q Wang %A
S.S. Xie %A X.F. Pan %A T.L. Wang %A Z.X. Wang %A H.C. Yang and Q. Wang %J 金属学报(英文版) %D 1999 %I %X 1.IntroductionInmetalsandalloys,thenearthresholdfatiguecrackgrowthisfrequentlytermed'microstructurallysensitive'.Thisisduebothtotheappearanceofthefracturesllrface,whichisoftenfaceted,andtotilelargevariationsincrackgrowthratewhichcanbeobtainedbyalteringparameterssllchasgrainsize,yieldstrength,ortherelativeproportionsanddistributionsofphasesinthemicrostructure1].Thisimpliesthatsignificantimprotremelltintotalfatiguelifecouldbeachievedbychangingthemicrostructureofalloys.Therefore,itwouldbeveryadv… %K superalloy %K GH586 %K fatigue %K crack %K growth %K threshold %K grain %K size %K γ'-distribution %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=DCF4CE50E80874D0BD5B5FC04DD27390&yid=B914830F5B1D1078&vid=59906B3B2830C2C5&iid=38B194292C032A66&sid=866F8A6B640835A7&eid=4E6F5C60B72D9B1C&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=8