Microstructural characterization and thermal stability of AlCrFeNiTi + Y2O3 high-entropy alloy nanocomposites prepared by mechanical alloying

被引：0
|
作者：
Rao, K. Raja [1 ,2 ]
Mohan, Man [1 ,2 ,3 ]
Dewangan, Sheetal Kumar [1 ]
Nagarjuna, Cheenepalli [1 ]
Lee, Kwan [2 ]
Ahn, Byungmin [1 ,4 ]
机构：
[1] Ajou Univ, Dept Mat Sci & Engn, Suwon 16499, South Korea
[2] Univ Suwon, Dept Semicond Engn, Hwaseong 18323, South Korea
[3] Rungta Coll Engn & Technol, Dept Mech Engn, Bhilai 490024, India
[4] Ajou Univ, Dept Energy Syst Res, Suwon 16499, South Korea
来源：
MATERIALS LETTERS | 2024年 / 372卷
基金：
新加坡国家研究基金会;
关键词：
High-entropy alloys; Nanocomposites; Lightweight materials; Intermetallic; HIGH-ENTROPY ALLOY;
D O I：
10.1016/j.matlet.2024.137018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The study focuses on the development of lightweight nanocomposites using a powder metallurgy route. Y2O3 nanoparticles (1, 2, and 3 wt%) are added to an AlCrFeNiTi high-entropy alloy (HEA) matrix. The addition of Y2O3 nanoparticles leads to the formation of a small intermetallic phase in HEA matrix. With increasing Y2O3 wt. %, the size of the crystallites diminishes starting from 32.7 nm (HEA) to 10.3 nm (HEAnC-3). TEM examination reveals that the alloy is nanocrystalline with an average grain size of 39.2 +/- 2.1 nm. DSC study indicates that the nanocomposites are stable up to 1000 degrees C, making them ideal for high-temperature applications.
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页数：5
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