Journal
INTERMETALLICS
Volume 41, Issue -, Pages 96-103Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2013.05.002
Keywords
Phase stability, prediction; Alloy design; Glasses, metallic
Categories
Funding
- Research Grant Council (RGC)
- Hong Kong Government, through the General Research Fund (GRF) [CityU/521411]
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Metastable solid solutions can form preferably over intermetallic compounds, in cast high-entropy alloys or multi-component alloys with equi- or nearly equi-atomic compositions, due to the entropy contribution at elevated temperatures. Meanwhile, the high mixing entropy also favors the amorphous phase formation. The phase selection between solid solutions and the amorphous phase upon alloying in high-entropy alloys is intriguing. A two-parameter physical scheme, utilizing the atomic size polydispersity and mixing enthalpy, is found to be capable of capturing this phase selection mechanism. (C) 2013 Elsevier Ltd. All rights reserved.
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