Publication

Abstract : An investigation was carried out to understand the effects of Co, Ti and Si additions to the AlCuNiFe entropy alloys on the microstructure, hardness and wear properties. The entropy alloy samples were prepared by an arc melting process under an argon atmosphere. Hardness and wear rate were measured using a microhardness tester and a Pin-On-Disc wear tester respectively. EDAX and XRD analyses were also carried out. The entropy alloys showed a high hardness and a low wear rate compared to several conventional alloys. Si and Ti contribute significantly to the increase in the hardness when compared to Co in the AlCuNiFe system. Si tends to form a separate phase due to the effect of entropy of mixing. The results of this study are comparable to those of previous works. © 2017 Elsevier Ltd. All rights reserved.