× Warning! Note that elemental potentials taken from alloy descriptions may not work well for the pure species. This is particularly true if the elements were fit for compounds instead of being optimized separately. As with all interatomic potentials, please check to make sure that the performance is adequate for your problem.

× Updated! Potentials that share interactions are now listed as related models.

2009--Purja-Pun-G-P-Mishin-Y--Ni-Al

Citation: G.P. Purja Pun, and Y. Mishin (2009), "Development of an interatomic potential for the Ni-Al system", Philosophical Magazine, 89(34-36), 3245-3267. DOI: 10.1080/14786430903258184.

Abstract: We construct an interatomic potential for the Ni-Al system within the embedded-atom method formalism. The potential is based on previously developed accurate potentials for pure Ni and Al. The cross-interactions are fitted to experimental cohesive energy, lattice parameter and elastic constants of B2-NiAl, as well as to ab initio formation energies of several real or imaginary intermetallic compounds with different crystal structures and chemical compositions. The potential accurately reproduces a variety of physical properties of the NiAl and Ni3Al phases, and shows reasonable agreement with experimental and ab initio data for phase stability across the Ni-Al phase diagram. Most of the properties reproduced by the new potential were not involved in the fitting process, which demonstrates its excellent transferability. Advantages and certain weaknesses of the new potential in comparison with other existing potentials are discussed in detail. The potential is expected to be especially suitable for simulations of heterophase interfaces and mechanical behavior of Ni-Al alloys.

EAM tabulated functions (2009--Purja-Pun-G-P--Ni-Al--table--ipr1)

Notes: These files were provided by Yuri Mishin.
File(s):

Al F(ρ): F_Al.plt
Ni F(ρ): F_Ni.plt
Al ρ(r): fAl.plt
Ni ρ(r): fNi.plt
Al φ(r): pAl.plt
Ni φ(r): pNi.plt
Ni-Al φ(r): pNiAl.plt

LAMMPS pair_style eam/alloy (2009--Purja-Pun-G-P--Ni-Al--LAMMPS--ipr1)

See Computed Properties
Notes: This conversion was produced by Chandler Becker on 13 Aug. 2009 from the plt files listed above. This version is compatible with LAMMPS. Validation and usage information can be found in Mishin-Ni-Al-2009_releaseNotes_1.pdf. 15 Dec. 2009: Reference was updated from "in press."
File(s):

Mishin-Ni-Al-2009.eam.alloy
Mishin-Ni-Al-2009_releaseNotes_1.pdf

OpenKIM (MO_751354403791)

See Computed Properties
Notes: Listing found at https://openkim.org. This KIM potential is based on the files from 2009--Purja-Pun-G-P--Ni-Al--LAMMPS--ipr1.
Link(s):

KIM page EAM_Dynamo_PunMishin_2009_NiAl__MO_751354403791_005