Amorphization in equiatomic high entropy alloys

被引：26
|
作者：
Vaidya, Mayur [1 ]
Armugam, Senthil [1 ]
Kashyap, Sanjay [1 ]
Murty, B. S. [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2015年 / 413卷
关键词：
High entropy alloys; Amorphization; Glass forming ability; Mechanical alloying; BULK METALLIC-GLASS; SYSTEM; ELEMENTS; CO;
D O I：
10.1016/j.jnoncrysol.2015.01.015
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Amorphization behavior in equiatomic high entropy alloys has been investigated. Pseudo-binary FeCrNi-M-B alloys and true equiatomic high entropy compositions FeCrNi-M-Si (M = Co, Mn, Nb, Ti, Zr) have been synthesized using mechanical alloying. Formation of amorphous phase has been confirmed using X-ray diffraction analysis and transmission electron microscopy. All alloys containing Si showed significant amorphization. Fe80B20 is known to be a good glass former, but no amorphous phase was observed in Fe-B based alloys except for FeCrNiNbB. The slower kinetics of dissolution of B in the alloy due to its sluggish diffusivity caused by its higher melting point is attributed to be the reason for the poor amorphization in B containing alloys. (C) 2015 Elsevier B.V. All rights reserved.
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页码：8 / 14
页数：7
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