Journal
SCRIPTA MATERIALIA
Volume 162, Issue -, Pages 468-471Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2018.12.022
Keywords
Lattice constant; Binary alloys; High entropy alloys; Chemical interaction
Categories
Funding
- National Natural Science Foundation of China [51471133, 51771149]
- Hong Kong Grant Research Fund (GRF) [CityU 11205515]
- City University of Hong Kong
- Natural Science Foundation of SZU [827-000180]
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The variation of the lattice constant with alloying elements is an essential issue in alloy design. In the traditional single-based alloys, there is a tremendous database for predicting the lattice constant. However, the traditional database is not suitable to the emerging multi-principal components alloys referred as high entropy alloys. Here, a framework is proposed to describe the variation of lattice constants in high entropy alloys. Based on the quantitative measurement of the lattice constants of fourteen alloys, we constructed the lattice constant database for concentrated CoCrFeNi alloys. The discrepancy between binary alloys and high entropy alloys revealed the atomic chemical interactions. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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