High entropy alloys are usually defined as the kind of alloys with at least five principle components, each component has the equi-atomic ratio or near equi-atomic ratio, and the high entropy alloys can have very high entropy of mixing, forming simple solid solution rather than many complex intermediate phases. In this paper, the size effects on the microstructure and mechanical behaviors of a high entropy alloy of AlCoCrFeNi was studied by preparing as-cast rod samples with different diameters. The alloy independent of cast diameter samples has the same phase of body centered cubic solid solution. With decreasing casting diameter, both the strength and the plasticity are increased slightly.
Issue Section:
Technical Briefs
Keywords:
metals and alloys,
casting,
aluminium alloys,
casting,
chromium alloys,
cobalt alloys,
cooling,
entropy,
iron alloys,
mechanical strength,
mixing,
nickel alloys,
plasticity,
solid solutions
Topics:
Alloys,
Casting,
Cooling,
Entropy,
Mechanical properties,
Plasticity,
Solid solutions,
Size effect
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.Copyright © 2009
by American Society of Mechanical Engineers
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