%0 Journal Article
%T MICROSTRVCTURAL STUDY OF INTERMETALLIC COMPOUND Ni_3Al BY AP-FIM<br>金属间化合和Ni3Al微结构的AP—FIM研究
%A LI Zhiqiang
%A REN Dagang
%A LI Douxing
%A GUO Jianting
%A <br>李志强
%A 任大刚
%A 李斗星
%A 郭建亭
%J 金属学报
%D 1998
%I 
%X By using AP-FIM the effects of addition of B on the order degree and field ion image contrast of Ni3Al have been investigated. There are many Ni-rich regions in Ni3Al without B. The addition of B can result in the preferential orientation of Ni3Al. As content of B increases, the number of anti-site Al atom increases and the order degree of Ni3Al decreases.The latter is also one of the reasons of the ductility improvement in Ni3Al at room temperature.
%K NisAl
%K AP-FIM
%K order degree
%K boron<br>Ni3Al
%K AP－UFIM
%K 有序度
%K 硼
%K 微结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=5175C9D46105FE5DBAC27542543C7C68&yid=8CAA3A429E3EA654&vid=339D79302DF62549&iid=38B194292C032A66&sid=D537C66B6404FE57&eid=01622E3E475F966C&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=3