A phase-field study on a eutectic high-entropy alloy during solidification

被引：2
|
作者：
Sagar, Boina [1 ]
Biswas, Krishanu [1 ]
Mukherjee, Rajdip [1 ]
机构：
[1] IIT Kanpur, Dept Mat Sci & Engn, Kanpur 208016, Uttar Pradesh, India
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 2021年 / 101卷 / 04期
关键词：
Phase-field model; multi-component alloy; microstructure evolution; eutectic solidification;
D O I：
10.1080/09500839.2021.1877366
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present work, we adopt a computational approach to study the evolution of microstructure during solidification of a Ti-Fe-Co-Ni-Cu multi-component alloy system by regarding it as a Ti-(Cu, Ni)-(Fe, Co) pseudo-ternary-alloy system. The as-cast alloy has a eutectic morphology with lamellar structure between (Cu)(SS) and a Laves phase. A Kim-Kim-Suzuki (KKS) phase-field model for eutectic solidification is implemented for this multi-component alloy system using a MOOSE finite element framework. The model is implemented for different scenarios, which include the simulation of microstructures at eutectic temperature and for small degrees of undercoolings (Delta T = 2 degrees C, 5 degrees C, 8 degrees C, 10 degrees C). Analysis of the microstructure evolution reveals that an increase in undercooling leads to a higher growth velocity and a larger volume fraction of solid phases.
引用
收藏
页码：160 / 172
页数：13
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