What is it about?
The present work applies the Alloy Search and Predict (ASAP) method to the design of an oxidation- resistant refractory HEA based on three selection criteria, which are (1) to maximise melting temperature, (2) include Cr as an alloy component and (3) have a single phase field below the solidus. This alloy design process resulted in the combination of Cr, Mo, V and W, which is further investigated both theoretically, by DFT and CALPHAD methods, and experimentally by arc-melting
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Why is it important?
The significance of this new alloy is two-fold: (1) there are few existing SPHEAs that combine both refractory and transition elements and (2) there is significant interest in including oxide scale formers such as Cr, Al and Si in refractory alloys for high strength, high temperature and oxide resistant components.
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This page is a summary of: Cr-Mo-V-W: A new refractory and transition metal high-entropy alloy system, Scripta Materialia, January 2019, Elsevier, DOI: 10.1016/j.scriptamat.2018.08.045.
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