Microstructure and phase selection of undercooled single-phase Fe-Co alloy

被引：0
作者：
Liu, Ning [1 ,2 ]
Yang, Gencang [2 ]
Liu, Feng [2 ]
机构：
[1] Jiangsu Univ Sci & Technol, Sch Machine & Met, Zhangjiagang 215600, Jiangsu, Peoples R China
[2] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGIES, PTS 1 AND 2 | 2011年 / 154-155卷
关键词：
Fe-Co alloy; solidification; microstructure; undercooling; phase selection; METASTABLE PHASE; DENDRITE GROWTH; SOLIDIFICATION; TRANSITIONS; NUCLEATION; MAPS;
D O I：
10.4028/www.scientific.net/AMR.154-155.1624
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fe-Co single-phase alloy melts with different Co contents were undercooled using fluxing method. The maximum undercooling Delta T = 457K (relative undercooling Delta T/T-m=0.259) was achieved in this work. At low undercooling (Delta T), single-phased microstructure was observed, but metastable bcc phase emerged in the as-solidified microstructure once Delta T exceeded a critical value, Delta T-crit. In the presence of classical nucleation theory, phase selection in the undercooled Fe-Co melt was investigated, and the theoretical calculation was coincided with the experimental result.
引用
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页码：1624 / +
页数：2
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