期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 583, 期 -, 页码 410-413出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.08.213
关键词
High-entropy alloys; Multicomponent solidification; X-ray diffraction
资金
- Hong Kong RGC Grant CityU at City University of Hong Kong, PR China [9041731]
Solid solutioning in equiatomic alloys becomes an interesting and timely topic, considering the current interest at high-entropy alloys (HEAs) in the materials community. In the circumstances where there is no such a differentiation of the solvent and solutes, it is intriguing to explore the solid solution limit in HEAs. In this work, a series of fcc structured equiatomic alloys were specially designed, following the valence electron concentration rule, to study the solid solutioning in the assumed pseudo binary Ni-X (X = Co, Fe, Cr, Cu) systems. The solid solution limit of the multi-component equiatomic alloys was found to set by the topological instability. The decomposition of the single-phase solid solution occurred when the lattice distortion reached a critical strain of 0.018. (C) 2013 Elsevier B.V. All rights reserved.
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