A Novel Approach to Produce Single-Phase High-Entropy Alloys

被引：0
|
作者：
P. Chakraborty [1 ]
N. K. Sarkar [1 ]
B. Vishwanadh [1 ]
R. Tewari [1 ]
机构：
[1] Bhabha Atomic Research Center,Materials Science Division
来源：
Transactions of the Indian National Academy of Engineering | 2024年 / 9卷 / 3期
关键词：
High-entropy alloys; Single phase; Thermo-calc; BCC;
D O I：
10.1007/s41403-023-00398-8
中图分类号：
学科分类号：
摘要：
Thermodynamic simulations and experimental characterization of the equiatomic Al20Nb20Ti20V20Zr20 (at%) alloy have shown the presence of a bcc/B2 type dendritic phase along with intermetallics of Zr and Al in the inter-dendrtitic region. A new route was adopted to produce the as-cast structure with single phase by altering stoichiometry of the alloy to match with that of the dendritic phase. Theoritical predictions and microstructural characterization of the produced non-equiatomic composition of dendrtic phase alloy Nb35V25Ti25Al10Zr5 (at.%) showed significant reduction in the volume fraction of intermetallic phase in comparison to the equiatomic alloy. Therefore, the present study has opened up a possibility of designing several single-phase HEA compositions from the already existing multiphase–multicomponent alloys.
引用
收藏
页码：703 / 708
页数：5
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