%0 Journal Article
%T MICROSCOPIC RESEARCH ON IMPROVEMENT OF FATIGUE LIFE OF ALLOY LY12CZ AFTER LASER RADIATION AND ITS DAMAGE EVOLUTION<br>LY12CZ材料激光辐照延寿的微观研究及损伤演变
%A ZOU Hongcheng
%A DAI Shujuan
%A QIAN Zhixiong
%A LI Guangxia Huazhong University of Science
%A Technology
%A Wuhan
%A <br>邹鸿承
%A 戴蜀娟
%A 钱志雄
%A 李光霞
%J 金属学报
%D 1989
%I 
%X 对激光辐照后Ly12 CZ铝合金的疲劳寿命明显提高的原因进行了微观研究。结果表明位错胞尺寸λ在疲劳失效时都趋向于一常量λ_c。结合损伤力学建立了该材料的疲劳损伤判据及损伤演变过程,分别为: D_c=1-(λ_c/λ_0)~P D=1-{1-1-(λ_c/λ_0)~(P(1+γ))](N/N_f)}~(1/(1+γ)
%K laser radiation
%K dislocation cell
%K fatigue
%K damage mechanics<br>铝合金
%K 激光辐照
%K 位借胞
%K 疲劳
%K 损伤
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=B29BCAF141A769E0B719D9CB88229673&yid=1833A6AA51F779C1&vid=C5154311167311FE&iid=38B194292C032A66&sid=987EDA49D8A7A635&eid=014B591DF029732F&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=3