Formation of a Huesler-like L21 phase in a CoCrCuFeNiAlTi high-entropy alloy

Ordered L2(1) Huesler phases not only exhibit interesting magnetic properties but are also known to substantially enhance creep resistance in multiphase alloys. We present experimental evidence of a Huesler-like ordered L2(1) phase in a multicomponent High Entropy Alloy (HEA) and rationalize the titanium induced stabilization of this phase based on first-principles calculations. More broadly, this paper directly shows that the composition of HEAs can be tuned to obtain the desired microstructure, and potentially tailor their properties. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.