Abstract:
:The alloy-design strategy of combining multiple elements in near-equimolar ratios has shown great potential for producing exceptional engineering materials, often known as 'high-entropy alloys'. Understanding the elemental distribution, and, thus, the evolution of the configurational entropy during solidification, is undertaken in the present study using the Al₁.₃CoCrCuFeNi model alloy. Here we show that, even when the material undergoes elemental segregation, precipitation, chemical ordering and spinodal decomposition, a significant amount of disorder remains, due to the distributions of multiple elements in the major phases. The results suggest that the high-entropy alloy-design strategy may be applied to a wide range of complex materials, and should not be limited to the goal of creating single-phase solid solutions.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Santodonato LJ,Zhang Y,Feygenson M,Parish CM,Gao MC,Weber RJ,Neuefeind JC,Tang Z,Liaw PKdoi
10.1038/ncomms6964subject
Has Abstractpub_date
2015-01-20 00:00:00pages
5964issn
2041-1723pii
ncomms6964journal_volume
6pub_type
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