时效1420铝锂合金第二相粒子灰色关联分析  

Gray relational analysis on second particles of 1420 Al-Li alloy after ageing

作　　者：罗智辉 张新明[2] 叶凌英[2] 

机构地区：[1]湖南工程学院,湖南湘潭410001 [2]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《兵器材料科学与工程》2009年第2期15-17,共3页Ordnance Material Science and Engineering

基　　金：国家重大基础研究资助项目(2005CB623706)

摘　　要：用灰色关联分析方法取代传统的数理统计方法,对1420铝锂合金在固溶处理+时效处理后的第二相粒子尺寸和体积分数与影响因素之间的相互关系进行分析,确定各影响因子之间的主次关系。结果表明,二级时效温度是最关键因子,次关键因子为二级时效时间,关联度最低的是固溶时间,并根据分析结果提出实验时的相应对策。By means of gray relational analysis method instead of traditional mathematic statistical one, the relations between the size and volume fraction of second particles of 1420 Al-Li alloy after solution and ageing, along with influencing factors were investigated, and the primary and secondary relations among influencing factors were confirmed. The results demonstrated that the second stage ageing temperature was the most key factor, the second stage ageing time was the second key factor,and solution time was...

关 键 词：灰色关联分析 双级时效 第二相粒子 体积分数 

分 类 号：TG113.25[金属学及工艺—物理冶金]