%0 Journal Article
%T FRACTAL DIMENSION OF CAVITIES SHAPE CHANGES DURING SUPERPLASTIC DEFORMATION OF HIGH STRENGTH Al ALLOY 7475<br>高强度7475Al合金超塑变形空洞形状变化的分形描述
%A JIANG Xinggang
%A CUI Jianzhoug
%A MA Longxiang Northeast University of Technology
%A Shenyang Box
%A Northeast University of Technology
%A Shenyang
%A <br>蒋兴钢
%A 崔建忠
%A 马龙翔
%J 金属学报
%D 1990
%I 
%X The fractal dimension changes of cavities have been determined duringsuperplastic deformation of the high strength Al alloy 7475 with different strain,temperature, strain rate and grain size. The fractal dimension of cavities may in-crease with the increase of strain. It becomes higher as the alloy deformed underthe lower temperature, the greater strain rate and the coarser grain size. The alloywould be approaching to rupture if the fractal dimension of cavities raised to acertain extent.
%K fractal dimension
%K superplastic deformation
%K cavity
%K Al alloy<br>超塑变形
%K 空洞
%K 分形
%K Al合金
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=12A853083DBD9B8D0346FC53D8D014A2&yid=8D39DA2CB9F38FD0&vid=96C778EE049EE47D&iid=E158A972A605785F&sid=3986B25773CB6C30&eid=2922B27A3177030F&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1