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Accession Number:
ADA576083
Title:
Absence of Long-Range Chemical Ordering in Equimolar FeCoCrNi
Descriptive Note:
Journal article
Corporate Author:
AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH
Report Date:
2012-06-20
Pagination or Media Count:
5.0
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 long-range 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.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE