%0 Journal Article
%T SEM IN SITU OBSERVATIONS TO THE EFFECTS OF INCLUSIONS ON INITIATION AND PROPAGATION OF THE LOW CYCLIC FATIGUE CRACK IN SUPER STRENGTH STEEL<br>夹杂物对超高强度钢低周疲劳裂纹萌生及扩展影响的原位观测
%A WANG Xishu
%A LIANG Feng
%A ZENG Yanping
%A XIE Xishan
%A <br>王习术
%A 梁锋
%A 曾燕屏
%A 谢锡善
%J 金属学报
%D 2005
%I 
%X SEM in situ observations for the effects of inclusions on the fatigue crack initiation and propagation behaviors of super strength steel indicate that the inclusion size and shape affect not only on the fatigue crack initiation location but also on the crack growth behavior. At the same time, the effects of inclusions on the fatigue crack initiation are discussed by finite element method (FEM) analysis. The critical size of inclusion in low cyclic fatigue crack propagation is proposed and the influence of fatigue crack growth rate is estimated.
%K super strength steel
%K inclusion
%K fatigue crack initiation and propagation
%K SEM in situ observation<br>超高强度钢
%K 夹杂物
%K 疲劳裂纹萌生及扩展
%K 原位观测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=5D655A9E65BE29F7&yid=2DD7160C83D0ACED&vid=2001E0D53B7B80EC&iid=59906B3B2830C2C5&sid=F82BA45C3E48287D&eid=C700F38C49C581D7&journal_id=0412-1961&journal_name=金属学报&referenced_num=15&reference_num=24