%0 Journal Article
%T Effects of Alloying Elements on the Volume Fraction of Ordered α2 Phase Precipitated in Ti-Al-Sn-Zr Alloys
%A Jun ZHANG
%A Na PENG
%A Xinan WANG
%A Li LI
%A Qingjiang WANG
%A <br>Jun
%A ZHANG
%A Na
%A PENG
%A Xinan
%A WANG
%A Li
%A LI
%A Qingjiang
%A WANG
%J 材料科学技术学报
%D 2007
%I 
%X An ideal method has been established for calculating the precipitation of α2 ordered phase in near-α titanium alloys based on the theory on the critical electron concentration for the precipitation of α2 ordered phase in near-α titanium alloys. With complete precipitation of α2 phase in near-α titanium alloys, the alloys can be considered to be composed of two parts： （1） the α2 ordered phase with the stoichiometric atomic ratio of Ti3X; （2） the disorder solid solution with the critical composition in which the α2 ordered phase is just unable to precipitate. By using this method, the volume fractions of α2 ordered phase precipitated in Ti-Al, Ti-Sn, Ti-Al-Sn-Zr alloys with various AI, Sn and/or Zr contents have been calculated. The influences of AI and Sn on the precipitation of α2 ordered phase are discussed. The calculating results show substantial agreement with the experimental ones.
%K Precipitation
%K Electron concentration
%K Titanium alloys<br>成合金元素
%K 钛合金
%K Ti-Al-Sn-Zr合金
%K 沉淀
%K 体积分数
%K α2有序相
%K 电子密度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=9070D4CD01765CC8&yid=A732AF04DDA03BB3&vid=EA389574707BDED3&iid=CA4FD0336C81A37A&sid=331211A5F5616413&eid=F24949CFDB502409&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=13