Publication Type
Journal
Journal Name
Applied Physics Letters
Publication Date
Page Number
251907
Volume
100
Issue
25
Abstract
Equimolar FeCoCrNi alloys have been the topic of recent research as “high-entropy
alloys,” where the name is derived from the high configurational entropy of mixing for
a random solid solution. Despite their name, no systematic study of ordering in this
alloy system has been performed to date. Here we present results from anomalous
x-ray scattering and neutron scattering on quenched and annealed samples. An alloy
of FeNi3 was prepared in the same manner to act as a control. Evidence of longrange
chemical ordering is clearly observed in the annealed FeNi3 sample from both
experimental techniques. The FeCoCrNi sample given the same heat treatment lacks
long-range chemical order.
