%0 Journal Article
%T Effects of B addition on the columnar structures of Ti-46Al and Ti-46Al-5Nb alloys<br>B元素对Ti-46Al和Ti-46Al-5Nb合金柱状晶组织的影响
%A YANG Hui-Min
%A <br>杨慧敏
%A 苏彦庆
%A 郭景杰
%A 骆良顺
%A 李新中
%A 傅恒志
%J 金属学报
%D 2008
%I 
%X The effects of B content on the columnar structures of unidirectionally solidified Ti-46Al and Ti-46Al-5Nb alloys were investigated in the paper. The results show that, with B addition, the columnar structures of Ti-46Al and Ti-46Al-5Nb alloys are refined. The effect of B addition on the columnar structure refinement of Ti-46Al-5Nb alloy is greater than that of Ti-46Al alloy. This is resulted from two reasons. (1) The effects of Nb addition on the columnar structure refinement of Ti-46Al alloy. (2) In Ti-46Al alloy the boride fraction is increased because the solubility of B element was decreased with Nb addition.
%K Ti-46Al
%K Ti-46Al-5Nb<br>B添加
%K 柱状晶组织
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=D6FF51344E4A22D85529473110A9567C&yid=67289AFF6305E306&vid=1AE5323881A5ECDC&iid=F3090AE9B60B7ED1&sid=E5572679EEAEEC9C&eid=E2F55FDAFC844F27&journal_id=0412-1961&journal_name=金属学报&referenced_num=2&reference_num=10