Study on phase formation in magnetic FeCoNiMnV high entropy alloy produced by mechanical alloying

At the present work, FeCoNiMnV high entropy alloy is successfully synthesized by ball milling and the magnetic properties are evaluated in terms of the structure. In order to study the phase formation of the produced alloy with the variation of milling time, X-ray diffraction (XRD) analysis as well as scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) were carried out. According to the structural results, the coexistence of FCC and BCC phases is revealed during the milling process. Furthermore, the G phase, which enriches with vanadium, is observed in the milled powders by progression of the process. As the magnetic results establish, the obtained powders can be considered as a semi-hard magnetic material based on the shape of hysteresis loops. Moreover, the maximum saturation magnetization of 100 emu/g is observed for the 48 h-milled powder. The magnetic properties are evaluated based on the formation and detection of the various phases in the produced alloy. (C) 2018 Elsevier B.V. All rights reserved.