%0 Journal Article
%T MODELING OF FATIGUE BEHAVIOUR OF METALS AT LOW TEMPERATURES<br>金属材料低温疲劳性能的预测方法
%A 吕宝桐
%A 郑修麟
%J 材料研究学报
%D 1993
%I 
%X The models and methods recently developed by the authors to predict fatiguebehaviour of metals at low temperatures are summarized in this paper.They include thermalactivation model of endurance limit,fatigue formula under cyclic strain,expressions of fatiguecrack intiation(FCI)life and fatigue crack growth(FCG)rate,ductile-brittle transition modelof FCG mechanism.By means of these models and methods,the fatigue properties at low tem-peratures,such as FCI life and FCG rate,can be quantitatively predicted from tensile propertiesof materials without additional low temperature fatigue test and without any empirical modifi-cation,as the endurance limit and FCG threshold at room temperature are known.
%K fatigue at low temperature
%K crack initiation
%K crack growth
%K endurance limit
%K fatigue under strain cycling
%K ductile-brittle transition<br>低温疲劳
%K 裂纹起始
%K 裂纹扩展
%K 应变疲劳
%K 疲劳极限
%K 韧脆转变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=333851CB58E7AD85&yid=D418FDC97F7C2EBA&vid=DF92D298D3FF1E6E&iid=CA4FD0336C81A37A&sid=5D311CA918CA9A03&eid=F3583C8E78166B9E&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=0&reference_num=1