%0 Journal Article
%T COMPARISON BETWEEN CYCLIC DEFORMATION BEHAVIORS OF NON-ISOAXIAL COPPER TRICRYSTAL AND BICRVSTAL<br>非同轴取向Cu三晶体及双晶体的循环形变行为比较
%A JIA Weiping
%A LI Shouxin
%A WANG Zhongguang
%A LI Xiaowu
%A LI Guangyi
%A <br>贾维平
%A 李守新
%A 王中光
%A 李小武
%A 李广义
%J 金属学报
%D 1998
%I 
%X The cyclic hardening and saturation behaviors of copper tricrystal and bicrystal were investigated by using successively increasing amplitude method. The results show that, to the inclined grain boundary bicrystal with single slip components, the cyclic stress strain curve (CSSC) ealsts a plateau or quasi-plateau region, while the CSSC of tricrystal shows no plateau.Observation of surface morphologies indicated that owing to the strain incompatibility of three grains, at lower strain amplitude the triple junction retards obviously the primary slip in grains and makes deformation near it smaller than that near bicrystal junction. The eastness of crack initiation at the same triple junction is closely related to loading direction.
%K copper tricrystal
%K triple junction
%K cyclic deformation
%K plastic strain incompatibility<br>循环形变
%K 塑性不相容性
%K 铜三晶体
%K 铜双晶体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=ECDC9ECCF881A3E3C7C4BFA571183512&yid=8CAA3A429E3EA654&vid=339D79302DF62549&iid=DF92D298D3FF1E6E&sid=A7379F6713A46835&eid=F20A770D14436F7C&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=1