Minor alloying behavior in bulk metallic glasses and high-entropy alloys |
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| Authors: | Yong Zhang YunJun Zhou XiDong Hui MeiLing Wang GuoLiang Chen |
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| Institution: | (1) State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China |
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| Abstract: | The effect of minor alloying on several bulk metallic glasses and high-entropy alloys was studied. It was found that minor
Nb addition can optimize the interface structure between the W fiber and the Zr-based bulk metallic glass in the composites,
and improve the mechanical properties. Minor Y addition can destabilize the crystalline phases by inducing lattice distortion
as a result to improve the glass-forming ability, and the lattice distortion energy is closely related to the efficiency of
space filling of the competing crystalline phases. A long-period ordered structure can precipitate in the Mg-based bulk metallic
glass by yttrium alloying. For the high-entropy alloys, solid solution can be formed by alloying, and its mechanical properties
can be comparable to most of the bulk metallic glasses. |
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| Keywords: | bulk metallic glasses high-entropy alloys solid solution lattice distortion entropy of mixing glass forming ability |
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