Development of interatomic potentials appropriate for simulation of devitrification of Al90Sm10 alloy
Journal Article
·
· Modelling and Simulation in Materials Science and Engineering
- Ames Lab., Ames, IA (United States)
- Ames Lab., Ames, IA (United States); Univ. of Science and Technology of China, Anhui (China)
- Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
In this study, a semi-empirical potential for the Al90Sm10 alloy is presented. The potential provides satisfactory reproduction of pure Al properties, the formation energies of a set of Al–Sm crystal phases with Sm content about 10%, and the structure of the liquid Al90Sm10 alloy. During molecular dynamics simulation in which the liquid alloy is cooled at a rate of 1010 K/s, the developed potential produces a glass structure with lower ab initio energy than that produced by ab initio molecular dynamics (AIMD) itself using a typical AIMD cooling rate of 8 ∙1013 K/s. Based on these facts the developed potential should be suitable for simulations of phase transformations in the Al90Sm10 alloy.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1227297
- Report Number(s):
- IS-J-8616
- Journal Information:
- Modelling and Simulation in Materials Science and Engineering, Vol. 23, Issue 4; ISSN 0965-0393
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 44 works
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