%0 Journal Article
%T Rapid growth of FeAl inter-metallic compound under high undercooling conditions<br>Rapid growth of FeAl intermetallic compound under high undercooling conditions
%A Lü
%A Yongjun
%A WEI Bingbo
%A <br>LUYongjun
%A WEIBingbo
%J 科学通报(英文版)
%D 2004
%I 
%X Fe-58at%Al alloy is undercooled up to 222 K (0.15TL) with the drop tube technique. It is found that there exists a critical undercooling about 185 K, beyond which a “dendrite-equiaxed” growth morphology transition occurs in FeAl intermetallic compound. This transition is characterized by sharp decrease of its grain size. Once the undercooling exceeds 215 K, the peritectic transformation is suppressed completely and a fibrous structure is formed, which results from the cooperative growth of FeAl and FeAl2 compounds.
%K rapid solidification
%K peritectic
%K dendrite growth
%K under-cooling
%K grain refining<br>快速凝固
%K 铝化铁
%K 金属间合成
%K 超低温条件
%K 树突生长
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=60049FD0C0F9773B394914A84EAA58B3&yid=D0E58B75BFD8E51C&vid=2A3781E88AB1776F&iid=B31275AF3241DB2D&sid=4002B7787911C73B&eid=CEFF71AEB051114C&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=2&reference_num=14