Abstract
The microstructure, hardness and wear performance of CrCuFeTiNi high entropy
alloy were evaluated. The alloy was produced by mixing constituent elements, consolidated
and melted using vacuum arc furnace. The X-ray diffraction analysis confirmed that the alloy is
composed of FCC and BCC simple phases. The microstructure contains three regions that were
rich in Cu, Cr and Fe which resulted from segregation of constituent elements. The Vickers
micro hardness of the alloy was determined as HV0.5 = 510 ± 7 MPa. The wear performance of
the alloy was also studied using WC balls under two load conditions. The volume loss was
evaluated, accompanied by analysis of the wear tracks and debris using SEM images and EDS.
The main wear mechanisms were ploughing, adhesion and oxidation-dominated wear.