%0 Journal Article
%T Lamellar Eutectic Growth Controlled By Solute Diffusion<br>溶质扩散控制层片共晶生长
%A MENG Guanghui
%A LIN Xin
%A HUANG Weidong
%A <br>孟广慧
%A 林鑫
%A 黄卫东
%J 金属学报
%D 2007
%I 
%X Based on the planar diffusion assumption, the solute boundary layer in lamellar eutectic growth under steady-state is estimated by means of modifying the conservation of mass at solid/liquid interface. It is found that the solute boundary layer along the growth direction is related to that along the solid/liquid interface. For transparent organic system CBr4-C2Cl6 with eutectic composition, the difference in average compositions of the solid and the liquid at solid/liquid interface increases with increasing in growth rate. The average composition in the liquid at solid/liquid interface still closes to the eutectic one as the initial composition of the alloy is apart from the eutectic point. In addition, for a fixed growth rate, the ratio of the difference in average composition to the lamellar width changed with initial composition of the alloy is noticeably distinct.
%K solidification
%K lamellar eutectic
%K diffusion
%K solute boundary layer<br>凝固
%K 层片共晶
%K 扩散
%K 溶质边界层
%K 溶质边界层
%K 扩散控制
%K 层片组织
%K 共晶生长
%K SOLUTE
%K DIFFUSION
%K CONTROLLED
%K EUTECTIC
%K GROWTH
%K 同而不同
%K 比值
%K 宽度
%K 成分差
%K 相界面
%K 液相
%K 共晶成分
%K 合金成分
%K 凝固速率
%K 固相
%K 共晶合金
%K 分析表
%K 合金系
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=874A1CE7C8235F7FE8C44AF6EAF071B7&yid=A732AF04DDA03BB3&vid=BE33CC7147FEFCA4&iid=708DD6B15D2464E8&sid=2613941CBDF71B5D&eid=334C32317477C964&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=23