%0 Journal Article
%T AN OPTIMIZATION ALGORITHM AND ITS APPLICATION FOR PREDICTING ELEMENTAL CONCENTRATIONS OF SUBLATTICES OF γ′ PHASE IN Ni BASE SUPERALLOYS<br>An optimization algorithm and its application for predicting elemental concentrations of sublattices of γ'' phase in Ni base superalloys
%A YAN Guangzong
%A PENG Zhifang
%A <br>阎光宗
%A 彭志方
%J 金属学报
%D 2005
%I 
%X 综合考虑镍基合金γ′相中原子尺寸失配和电负性因素对γ′相亚点阵成分的影响，建立了用于预测γ′相亚点阵成分的最优化数学模型．根据已知的γ′相成分，采用迭代替换方法确定优化问题中亚点阵成分变量的取值范围，运用分层宽容多目标优化法，计算了γ′相中合金元素在Ni位置和Al位置的浓度．利用已知γ′相成分和点阵常数数据对计算结果进行了验证，证实了该方法的可用性及其准确性．
%K 镍基合金
%K γ′相
%K 亚点阵
%K 多目标最优化
%K 目标函数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=BD073BB33F96C6C8&yid=2DD7160C83D0ACED&vid=2001E0D53B7B80EC&iid=38B194292C032A66&sid=4B1FFFA116F7AE3B&eid=01622E3E475F966C&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=12