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Indexed by:期刊论文

Date of Publication:2016-12-15

Journal:JOURNAL OF ALLOYS AND COMPOUNDS

Included Journals:SCIE、EI

Volume:688

Page Number:599-604

ISSN No.:0925-8388

Key Words:Metallic glass; Uranium alloy; Minor alloying; Glass-forming ability

Abstract:The effect of minor Sn alloying on the glass formation of U-based alloys is investigated. A string of U-Fe alloys designed with the eutectic rule are all formed in a partially glassy state under melt-spinning. Minor addition of Sn gives rise to the full amorphisation of the alloys, and the achievement of the reduced glass transition temperature for new U-Fe-Sn alloys comparable to some ordinary bulk metallic glasses. This role of Sn microalloying may be ascribed to improved packing efficiency of icosahedral atomic clusters underlying in the alloy liquids. It is suggested that local atomic packing is a necessary consideration for exploiting desirable U-based multicomponent alloys with high glass forming ability. (C) 2016 Elsevier B.V. All rights reserved.