The elastic-strain energy criterion of phase formation for complex concentrated alloys
Andreoli AF, Orava J, Liaw PK, Weber H, De Oliveira MF, Nielsch K, Kaban I (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 5
Article Number: 100222
DOI: 10.1016/j.mtla.2019.100222
Abstract
An empirical method is developed, based on the calculated theoretical elastic-strain energy, to predict the phase formation and its stability for complex concentrated alloys. The method prediction quality is compared with the traditional empirical rules based on the atomic-size mismatch, enthalpy of mixing, and valence-electron concentration for a database of 235 alloys. The “elastic-strain energy vs. valence-electron concentration” criterion shows an improved ability to distinguish between single-phase solid solutions, and mixtures of solid solutions and intermetallic phases when compared to the available empirical rules used to date. The criterion is especially strong for alloys that precipitate the µ phase. The theoretical elastic-strain-energy parameter can be combined with other known parameters, such as those noted above, to establish new criteria which can help predict the design of novel complex concentrated alloys with the on-demand combination of mechanical properties.
Involved external institutions
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
University of Tennessee (UTK)
United States (USA) (US)
University of São Paulo / Universidade de São Paulo (USP)
Brazil (BR)
Germany (DE)
University of Tennessee (UTK)
United States (USA) (US)
University of São Paulo / Universidade de São Paulo (USP)
Brazil (BR)
How to cite
APA:
Andreoli, A.F., Orava, J., Liaw, P.K., Weber, H., De Oliveira, M.F., Nielsch, K., & Kaban, I. (2019). The elastic-strain energy criterion of phase formation for complex concentrated alloys. Materialia, 5. https://doi.org/10.1016/j.mtla.2019.100222
MLA:
Andreoli, Angelo F., et al. "The elastic-strain energy criterion of phase formation for complex concentrated alloys." Materialia 5 (2019).
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