INITIATION AND SLOW STABLE GROWTH OF CLEAVAGE-LIKE CRACK IN TiAl  

作　　者：高克玮 王燕斌 褚武扬 肖纪美 

机构地区：[1]Department of Materials Physics, University of Science and Technology, Beijing 100083, PRC

出　　处：《Chinese Science Bulletin》1992年第17期1487-1490,共4页

基　　金：Project supported by the National Natural Science Foundation of China.

摘　　要：Ⅰ. INTRODUCTIONIn general, a cleavage crack will unstably propagate in high speed to catastrophic failure^[1]. In the view of fracture mechanics, the crack growth resistance or R curve under plane strain configuration should be saturated at 2%, and the crack propagates rapidly after that^[1]. K_IC=ER_c/（1-v²）, where R_c is the saturate resistance value. Chu and Thompson,

关 键 词：TIAI alloy resistance. 

分 类 号：N[自然科学总论]