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2004--Mishin-Y--Ni-Al

Citation: Y. Mishin (2004), "Atomistic modeling of the γ and γ'-phases of the Ni-Al system", Acta Materialia, 52(6), 1451-1467. DOI: 10.1016/j.actamat.2003.11.026.

Abstract: A new embedded-atom potential has been developed for Ni₃Al by fitting to experimental and first-principles data. The potential describes lattice properties of Ni₃Al, point defects, planar faults, as well as the γ and γ′ fields on the Ni–Al phase diagram. The potential is applied to calculate the energies of coherent Ni/Ni₃Al interphase boundaries with three different crystallographic orientations. Depending on the orientation, the interface energy varies between 12 and 46 mJ/m2. Coherent γ/γ′ interfaces existing at high temperatures are shown to be more diffuse and are likely to have a lower energy than Ni/Ni₃Al interfaces.

EAM tabulated functions (2004--Mishin-Y--Ni-Al--table--ipr1)

Notes: These files were provided by Yuri Mishin. Update 2 Sept 2020: parameter files renamed to avoid naming conflict issue.
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 (2004--Mishin-Y--Ni-Al--LAMMPS--ipr1)

See Computed Properties
Notes: This conversion was produced by Chandler Becker on 7 Jan 2009 from the plt files listed above. This version is compatible with LAMMPS. Validation and usage information can be found in NiAl04_releaseNotes_2.pdf. If you use this setfl file, please include the following citation (in addition to the Mishin reference): C.A. Becker, et al. (2011) Philos Mag 91(27) 3578-3597. UPDATE 14 Dec 2020: This version is noted as having non-zero energies for the isolated atoms. Because of this, the potential energies computed for bulk structures are correct, but they do not correspond to cohesive energies. An updated version is listed below.
File(s): superseded

OpenKIM (MO_101214310689)

See Computed Properties
Notes: Listing found at https://openkim.org. This KIM potential is based on the files from 2004--Mishin-Y--Ni-Al--LAMMPS--ipr1.
Link(s):

KIM page EAM_Dynamo_Mishin_2004_NiAl__MO_101214310689_005

LAMMPS pair_style eam/alloy (2004--Mishin-Y--Ni-Al--LAMMPS--ipr2)

See Computed Properties
Notes: This file was created by Lucas Hale and posted 12 Dec 2020 with the permission of Yuri Mishin. The tables in this file were obtained by using cubic spline interpolations of the plt files listed above. This version differs from the last LAMMPS version in that it explicitly sets F(rho=0) = 0 so that isolated atoms have an energy of 0.0. The two LAMMPS versions behave nearly identically except at very small r and at r near the cutoff. See "Version 2 notes.pdf" for a more detailed comparison of the two versions.
File(s):

NiAl_Mishin_2004.eam.alloy
Version 2 notes.pdf