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Title: Effect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys
Authors: Guo, Sheng
Ng, Chun
Lu, Jian
Liu, C. T.
Subjects: Alloying
Aluminium alloys
Chromium alloys
Cobalt alloys
Copper alloys
Crystal structure
Heat of mixing
Iron alloys
Nickel alloys
Solid solutions
Issue Date: 15-May-2011
Publisher: American Institute of Physics
Source: Journal of applied physics, 15 May 2011, v. 109, no. 10, 103505, p. 1-5.
Abstract: Phase stability is an important topic for high entropy alloys (HEAs), but the understanding to it is very limited. The capability to predict phase stability from fundamental properties of constituent elements would benefit the alloy design greatly. The relationship between phase stability and physicochemical/thermodynamic properties of alloying components in HEAs was studied systematically. The mixing enthalpy is found to be the key factor controlling the formation of solid solutions or compounds. The stability of fcc and bcc solid solutions is well delineated by the valance electron concentration (VEC). The revealing of the effect of the VEC on the phase stability is vitally important for alloy design and for controlling the mechanical behavior of HEAs.
Rights: © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. Guo et al., J. Appl. Phys. 109, 103505 (2011) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.3587228
ISSN: 0021-8979 (print)
1089-7550 (online)
Appears in Collections:ME Journal/Magazine Articles

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