Rapid solidification of bulk undercooled hypoperitectic Fe-Cu alloy

被引：86
|
作者：
Chen, Y. Z.
Liu, F. [1 ]
Yang, G. C.
Xu, X. Q.
Zhou, Y. H.
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidif Proc, Xian 710072, Peoples R China
[2] Flight Test Estab China, Xian 710089, Shaanxi, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 427卷 / 1-2期
关键词：
Cu-Fe alloy; phase separation; rapid solidification; undercooling; peritectic reaction; microstructure;
D O I：
10.1016/j.jallcom.2006.03.012
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Adopting cyclic superheating and DSC analysis, solidification behavior of undercooled CU70Fe30 alloy was investigated. The metastable phase separation is observed if the initial melt undercooling (Delta T) is above 56 K. The primary solidification of Fe-rich phase in the phase-separated melt is due to its high nucleation driving force i.e. a high Delta T. The coarsening of Fe-rich droplets is controlled by AT and can be ascribed to the Ostwald ripening and coagulation effect in the melt. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：L1 / L5
页数：5
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