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EAM_Dynamo_MendelevBorovikov_2020_FeNiCr__MO_922363340570_001

Interatomic potential for Chromium (Cr), Iron (Fe), Nickel (Ni).
Use this Potential

Title
A single sentence description.
Finnis-Sinclair potential for the Fe-Ni-Cr system developed by Mendelev et al. (2020) v001
Description
A short description of the Model describing its key features including for example: type of model (pair potential, 3-body potential, EAM, etc.), modeled species (Ac, Ag, ..., Zr), intended purpose, origin, and so on.
The potential was developed to simulate the plastic deformation in austenitic steels. All pure element have correct melting temperatures. The Ni part is new and different from the Ni potential published in [M.I. Mendelev, M.J. Kramer, S.G. Hao, K.M. Ho and C.Z. Wang, Phil. Mag 92, 4454-4469 (2012), KIM item https://doi.org/10.25950/ebd6cbc4 ]. The Fe part can be used to simulate the fcc phase and the fcc-bcc transition.
Species
The supported atomic species.
Cr, Fe, Ni
Disclaimer
A statement of applicability provided by the contributor, informing users of the intended use of this KIM Item.
None
Content Origin https://www.ctcms.nist.gov/potentials/Download/2019--Mendelev-M-I--Fe-Ni-Cr/1/Fe-Ni-Cr_fcc.eam.fs
Contributor Ronald E. Miller
Maintainer Ronald E. Miller
Developer Mikhail I. Mendelev
Valery Borovikov
Published on KIM 2025
How to Cite

This Model is archived in OpenKIM [1-4].

[1] Mendelev MI, Borovikov V. Finnis-Sinclair potential for the Fe-Ni-Cr system developed by Mendelev et al. (2020) v001. OpenKIM; 2025. doi:10.25950/837da682

[2] Foiles SM, Baskes MI, Daw MS, Plimpton SJ. EAM Model Driver for tabulated potentials with cubic Hermite spline interpolation as used in LAMMPS v006. OpenKIM; 2025. doi:10.25950/233cb735

[3] Tadmor EB, Elliott RS, Sethna JP, Miller RE, Becker CA. The potential of atomistic simulations and the Knowledgebase of Interatomic Models. JOM. 2011;63(7):17. doi:10.1007/s11837-011-0102-6

[4] Elliott RS, Tadmor EB. Knowledgebase of Interatomic Models (KIM) Application Programming Interface (API). OpenKIM; 2011. doi:10.25950/ff8f563a

Funding Not available
Short KIM ID
The unique KIM identifier code.
MO_922363340570_001
Extended KIM ID
The long form of the KIM ID including a human readable prefix (100 characters max), two underscores, and the Short KIM ID. Extended KIM IDs can only contain alpha-numeric characters (letters and digits) and underscores and must begin with a letter.
EAM_Dynamo_MendelevBorovikov_2020_FeNiCr__MO_922363340570_001
DOI 10.25950/837da682
https://doi.org/10.25950/837da682
https://commons.datacite.org/doi.org/10.25950/837da682
KIM Item Type
Specifies whether this is a Portable Model (software implementation of an interatomic model); Portable Model with parameter file (parameter file to be read in by a Model Driver); Model Driver (software implementation of an interatomic model that reads in parameters).
Portable Model using Model Driver EAM_Dynamo__MD_120291908751_006
DriverEAM_Dynamo__MD_120291908751_006
KIM API Version2.0
Potential Type eam
Programming Language(s)
The programming languages used in the code and the percentage of the code written in each one. "N/A" means "not applicable" and refers to model parameterizations which only include parameter tables and have no programming language.
N/A
Previous Version EAM_Dynamo_MendelevBorovikov_2020_FeNiCr__MO_922363340570_000

(Click here to learn more about Verification Checks)

Grade Name Category Brief Description Full Results Aux File(s)
P vc-species-supported-as-stated mandatory
The model supports all species it claims to support; see full description.
Results Files
P vc-periodicity-support mandatory
Periodic boundary conditions are handled correctly; see full description.
Results Files
P vc-permutation-symmetry mandatory
Total energy and forces are unchanged when swapping atoms of the same species; see full description.
Results Files
B vc-forces-numerical-derivative consistency
Forces computed by the model agree with numerical derivatives of the energy; see full description.
Results Files
F vc-dimer-continuity-c1 informational
The energy versus separation relation of a pair of atoms is C1 continuous (i.e. the function and its first derivative are continuous); see full description.
Results Files
P vc-objectivity informational
Total energy is unchanged and forces transform correctly under rigid-body translation and rotation; see full description.
Results Files
P vc-inversion-symmetry informational
Total energy is unchanged and forces change sign when inverting a configuration through the origin; see full description.
Results Files
P vc-memory-leak informational
The model code does not have memory leaks (i.e. it releases all allocated memory at the end); see full description.
Results Files
P vc-thread-safe mandatory
The model returns the same energy and forces when computed in serial and when using parallel threads for a set of configurations. Note that this is not a guarantee of thread safety; see full description.
Results Files
P vc-unit-conversion mandatory
The model is able to correctly convert its energy and/or forces to different unit sets; see full description.
Results Files
P vc-contributing-atom-energy informational
other
Results Files


BCC Lattice Constant

This bar chart plot shows the mono-atomic body-centered cubic (bcc) lattice constant predicted by the current model (shown in the unique color) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

Species: Fe
Species: Cr
Species: Ni


Cohesive Energy Graph

This graph shows the cohesive energy versus volume-per-atom for the current mode for four mono-atomic cubic phases (body-centered cubic (bcc), face-centered cubic (fcc), simple cubic (sc), and diamond). The curve with the lowest minimum is the ground state of the crystal if stable. (The crystal structure is enforced in these calculations, so the phase may not be stable.) Graphs are generated for each species supported by the model.

Species: Fe
Species: Cr
Species: Ni


Diamond Lattice Constant

This bar chart plot shows the mono-atomic face-centered diamond lattice constant predicted by the current model (shown in the unique color) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

Species: Fe
Species: Ni
Species: Cr


Dislocation Core Energies

This graph shows the dislocation core energy of a cubic crystal at zero temperature and pressure for a specific set of dislocation core cutoff radii. After obtaining the total energy of the system from conjugate gradient minimizations, non-singular, isotropic and anisotropic elasticity are applied to obtain the dislocation core energy for each of these supercells with different dipole distances. Graphs are generated for each species supported by the model.

(No matching species)

FCC Elastic Constants

This bar chart plot shows the mono-atomic face-centered cubic (fcc) elastic constants predicted by the current model (shown in blue) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

Species: Cr
Species: Fe
Species: Ni


FCC Lattice Constant

This bar chart plot shows the mono-atomic face-centered cubic (fcc) lattice constant predicted by the current model (shown in red) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

Species: Cr
Species: Ni
Species: Fe


FCC Stacking Fault Energies

This bar chart plot shows the intrinsic and extrinsic stacking fault energies as well as the unstable stacking and unstable twinning energies for face-centered cubic (fcc) predicted by the current model (shown in blue) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

FCC Surface Energies

This bar chart plot shows the mono-atomic face-centered cubic (fcc) relaxed surface energies predicted by the current model (shown in blue) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

Species: Ni


SC Lattice Constant

This bar chart plot shows the mono-atomic simple cubic (sc) lattice constant predicted by the current model (shown in the unique color) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

Species: Fe
Species: Ni
Species: Cr


Cubic Crystal Basic Properties Table

Species: Cr

Species: Fe

Species: Ni





Cohesive energy versus lattice constant curve for monoatomic cubic lattices v003

Creators:
Contributor: karls
Publication Year: 2019
DOI: https://doi.org/10.25950/64cb38c5

This Test Driver uses LAMMPS to compute the cohesive energy of a given monoatomic cubic lattice (fcc, bcc, sc, or diamond) at a variety of lattice spacings. The lattice spacings range from a_min (=a_min_frac*a_0) to a_max (=a_max_frac*a_0) where a_0, a_min_frac, and a_max_frac are read from stdin (a_0 is typically approximately equal to the equilibrium lattice constant). The precise scaling and number of lattice spacings sampled between a_min and a_0 (a_0 and a_max) is specified by two additional parameters passed from stdin: N_lower and samplespacing_lower (N_upper and samplespacing_upper). Please see README.txt for further details.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Cohesive energy versus lattice constant curve for bcc Cr v004 view 43565
Cohesive energy versus lattice constant curve for bcc Fe v004 view 46521
Cohesive energy versus lattice constant curve for bcc Ni v004 view 44999
Cohesive energy versus lattice constant curve for diamond Cr v004 view 45080
Cohesive energy versus lattice constant curve for diamond Fe v004 view 45320
Cohesive energy versus lattice constant curve for diamond Ni v004 view 45080
Cohesive energy versus lattice constant curve for fcc Cr v004 view 47001
Cohesive energy versus lattice constant curve for fcc Fe v004 view 43200
Cohesive energy versus lattice constant curve for fcc Ni v004 view 46120
Cohesive energy versus lattice constant curve for sc Cr v004 view 45160
Cohesive energy versus lattice constant curve for sc Fe v004 view 48973
Cohesive energy versus lattice constant curve for sc Ni v004 view 47697


Elastic constants for arbitrary crystals at zero temperature and pressure v001

Creators:
Contributor: ilia
Publication Year: 2025
DOI: https://doi.org/10.25950/922d328f

Computes the elastic constants for an arbitrary crystal. A robust computational protocol is used, attempting multiple methods and step sizes to achieve an acceptably low error in numerical differentiation and deviation from material symmetry. The crystal structure is specified using the AFLOW prototype designation as part of the Crystal Genome testing framework. In addition, the distance from the obtained elasticity tensor to the nearest isotropic tensor is computed.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Elastic constants for CrFe in AFLOW crystal prototype A2B_cF24_227_c_b at zero temperature and pressure v001 view 432064
Elastic constants for CrNi in AFLOW crystal prototype A2B_cF24_227_c_b at zero temperature and pressure v001 view 678900
Elastic constants for FeNi in AFLOW crystal prototype A2B_cF24_227_c_b at zero temperature and pressure v001 view 676260
Elastic constants for CrNi in AFLOW crystal prototype A3B_cF16_225_ac_b at zero temperature and pressure v001 view 407396
Elastic constants for FeNi in AFLOW crystal prototype A3B_cF16_225_ac_b at zero temperature and pressure v001 view 429877
Elastic constants for CrFe in AFLOW crystal prototype A3B_cP4_221_c_a at zero temperature and pressure v001 view 1320011
Elastic constants for CrNi in AFLOW crystal prototype A3B_cP4_221_c_a at zero temperature and pressure v001 view 537960
Elastic constants for FeNi in AFLOW crystal prototype A3B_cP4_221_c_a at zero temperature and pressure v001 view 544800
Elastic constants for CrFe in AFLOW crystal prototype A3B_tI8_139_ad_b at zero temperature and pressure v001 view 806700
Elastic constants for Cr in AFLOW crystal prototype A_cF4_225_a at zero temperature and pressure v001 view 515580
Elastic constants for Fe in AFLOW crystal prototype A_cF4_225_a at zero temperature and pressure v001 view 505080
Elastic constants for Ni in AFLOW crystal prototype A_cF4_225_a at zero temperature and pressure v001 view 498840
Elastic constants for Cr in AFLOW crystal prototype A_cI2_229_a at zero temperature and pressure v001 view 427495
Elastic constants for Fe in AFLOW crystal prototype A_cI2_229_a at zero temperature and pressure v001 view 445591
Elastic constants for Ni in AFLOW crystal prototype A_cI2_229_a at zero temperature and pressure v001 view 471533
Elastic constants for Cr in AFLOW crystal prototype A_cP8_223_ac at zero temperature and pressure v001 view 621105
Elastic constants for Cr in AFLOW crystal prototype A_hP2_194_c at zero temperature and pressure v001 view 534120
Elastic constants for Fe in AFLOW crystal prototype A_hP2_194_c at zero temperature and pressure v001 view 581580
Elastic constants for Ni in AFLOW crystal prototype A_hP2_194_c at zero temperature and pressure v001 view 523259
Elastic constants for Cr in AFLOW crystal prototype A_tP28_136_f2ij at zero temperature and pressure v001 view 941962
Elastic constants for Fe in AFLOW crystal prototype A_tP28_136_f2ij at zero temperature and pressure v001 view 1529101
Elastic constants for CrFe in AFLOW crystal prototype AB2_cF24_227_a_d at zero temperature and pressure v001 view 848460
Elastic constants for CrNi in AFLOW crystal prototype AB2_cF24_227_a_d at zero temperature and pressure v001 view 486445
Elastic constants for FeNi in AFLOW crystal prototype AB2_cF24_227_a_d at zero temperature and pressure v001 view 609484
Elastic constants for CrFe in AFLOW crystal prototype AB3_cF16_225_a_bc at zero temperature and pressure v001 view 410981
Elastic constants for CrNi in AFLOW crystal prototype AB3_cF16_225_a_bc at zero temperature and pressure v001 view 564339
Elastic constants for FeNi in AFLOW crystal prototype AB3_cF16_225_a_bc at zero temperature and pressure v001 view 447254
Elastic constants for FeNi in AFLOW crystal prototype AB3_cP4_221_a_c at zero temperature and pressure v001 view 548040
Elastic constants for FeNi in AFLOW crystal prototype AB_tP2_123_a_d at zero temperature and pressure v001 view 493020


Elastic constants for cubic crystals at zero temperature and pressure v006

Creators: Junhao Li and Ellad Tadmor
Contributor: tadmor
Publication Year: 2019
DOI: https://doi.org/10.25950/5853fb8f

Computes the cubic elastic constants for some common crystal types (fcc, bcc, sc, diamond) by calculating the hessian of the energy density with respect to strain. An estimate of the error associated with the numerical differentiation performed is reported.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Elastic constants for bcc Cr at zero temperature v006 view 21509
Elastic constants for bcc Fe at zero temperature v006 view 11530
Elastic constants for bcc Ni at zero temperature v006 view 19443
Elastic constants for diamond Cr at zero temperature v001 view 30137
Elastic constants for diamond Ni at zero temperature v001 view 27624
Elastic constants for fcc Cr at zero temperature v006 view 19217
Elastic constants for fcc Fe at zero temperature v006 view 18656
Elastic constants for fcc Ni at zero temperature v006 view 14813
Elastic constants for sc Cr at zero temperature v006 view 10268
Elastic constants for sc Fe at zero temperature v006 view 16254
Elastic constants for sc Ni at zero temperature v006 view 11850


Equilibrium structure and energy for a crystal structure at zero temperature and pressure v003

Creators:
Contributor: ilia
Publication Year: 2025
DOI: https://doi.org/10.25950/866c7cfa

Computes the equilibrium crystal structure and energy for an arbitrary crystal at zero temperature and applied stress by performing symmetry-constrained relaxation. The crystal structure is specified using the AFLOW prototype designation. Multiple sets of free parameters corresponding to the crystal prototype may be specified as initial guesses for structure optimization. No guarantee is made regarding the stability of computed equilibria, nor that any are the ground state.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype A2B_cF24_227_c_b v003 view 528303
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype A2B_cF24_227_c_b v003 view 546960
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A2B_cF24_227_c_b v003 view 516052
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype A3B_cF16_225_ac_b v003 view 233565
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A3B_cF16_225_ac_b v003 view 238929
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype A3B_cP4_221_c_a v003 view 226620
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype A3B_cP4_221_c_a v003 view 182240
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A3B_cP4_221_c_a v003 view 187845
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype A3B_tI8_139_ad_b v003 view 196860
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A3B_tI8_139_ad_b v003 view 208423
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_cF4_225_a v003 view 184322
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_cF4_225_a v003 view 392813
Equilibrium crystal structure and energy for Ni in AFLOW crystal prototype A_cF4_225_a v003 view 139080
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_cI2_229_a v003 view 142482
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_cI2_229_a v003 view 181599
Equilibrium crystal structure and energy for Ni in AFLOW crystal prototype A_cI2_229_a v003 view 139870
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_cP8_223_ac v003 view 388581
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_hP2_194_c v003 view 145216
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_hP2_194_c v003 view 178209
Equilibrium crystal structure and energy for Ni in AFLOW crystal prototype A_hP2_194_c v003 view 184161
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_tP28_136_f2ij v003 view 647884
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_tP28_136_f2ij v003 view 572663
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype AB2_cF24_227_a_d v003 view 403386
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype AB2_cF24_227_a_d v003 view 589860
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB2_cF24_227_a_d v003 view 583800
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype AB3_cF16_225_a_bc v003 view 161318
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype AB3_cF16_225_a_bc v003 view 162837
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB3_cF16_225_a_bc v003 view 169703
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype AB3_cP4_221_a_c v003 view 144913
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB3_cP4_221_a_c v003 view 145338
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB3_tI8_139_a_bd v003 view 161622
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB_tP2_123_a_d v003 view 155363


Relaxed energy as a function of tilt angle for a symmetric tilt grain boundary within a cubic crystal v003

Creators:
Contributor: brunnels
Publication Year: 2022
DOI: https://doi.org/10.25950/2c59c9d6

Computes grain boundary energy for a range of tilt angles given a crystal structure, tilt axis, and material.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Relaxed energy as a function of tilt angle for a 100 symmetric tilt grain boundary in bcc Fe v001 view 12446672
Relaxed energy as a function of tilt angle for a 110 symmetric tilt grain boundary in bcc Fe v001 view 42763860
Relaxed energy as a function of tilt angle for a 111 symmetric tilt grain boundary in bcc Fe v001 view 23856356
Relaxed energy as a function of tilt angle for a 112 symmetric tilt grain boundary in bcc Fe v001 view 69756247
Relaxed energy as a function of tilt angle for a 100 symmetric tilt grain boundary in fcc Fe v001 view 9880730
Relaxed energy as a function of tilt angle for a 100 symmetric tilt grain boundary in fcc Ni v001 view 9483675
Relaxed energy as a function of tilt angle for a 110 symmetric tilt grain boundary in fcc Fe v001 view 30720195
Relaxed energy as a function of tilt angle for a 110 symmetric tilt grain boundary in fcc Ni v001 view 28178908
Relaxed energy as a function of tilt angle for a 111 symmetric tilt grain boundary in fcc Fe v001 view 18425514
Relaxed energy as a function of tilt angle for a 111 symmetric tilt grain boundary in fcc Ni v001 view 14773490
Relaxed energy as a function of tilt angle for a 112 symmetric tilt grain boundary in fcc Fe v001 view 61852788
Relaxed energy as a function of tilt angle for a 112 symmetric tilt grain boundary in fcc Ni v001 view 52893013


Test driver for computing reference ground state structures and energies for each element at zero temperature and applied stress v000

Creators:
Contributor: efuem
Publication Year: 2025
DOI: https://doi.org/10.25950/fa5ed729

This test returns reference ground state structures and energies for each element at zero temperature and applied stress. The results from this test are useful when a reference structure is required in some downstream test, such as vacancy tests (used as a reservoir). This test driver works by querying results from the EquilibriumCrystalStructure test driver using element specific reference structures following CHIPS-FF. Although the reference prototypes are independent of model, the resulting structure and energy of the prototypes are model-dependent.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Reference elemental energy for Cr v000 view 29400
Reference elemental energy for Fe v000 view 27780
Reference elemental energy for Ni v000 view 27780


Equilibrium lattice constant and cohesive energy of a cubic lattice at zero temperature and pressure v007

Creators: Daniel S. Karls and Junhao Li
Contributor: karls
Publication Year: 2019
DOI: https://doi.org/10.25950/2765e3bf

Equilibrium lattice constant and cohesive energy of a cubic lattice at zero temperature and pressure.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Equilibrium zero-temperature lattice constant for bcc Cr v007 view 15676
Equilibrium zero-temperature lattice constant for bcc Fe v007 view 14400
Equilibrium zero-temperature lattice constant for bcc Ni v007 view 18977
Equilibrium zero-temperature lattice constant for diamond Cr v007 view 17615
Equilibrium zero-temperature lattice constant for diamond Fe v007 view 12395
Equilibrium zero-temperature lattice constant for diamond Ni v007 view 20178
Equilibrium zero-temperature lattice constant for fcc Cr v007 view 13367
Equilibrium zero-temperature lattice constant for fcc Fe v007 view 19697
Equilibrium zero-temperature lattice constant for fcc Ni v007 view 17377
Equilibrium zero-temperature lattice constant for sc Cr v007 view 20978
Equilibrium zero-temperature lattice constant for sc Fe v007 view 22820
Equilibrium zero-temperature lattice constant for sc Ni v007 view 18167


Equilibrium lattice constants for hexagonal bulk structures at zero temperature and pressure v005

Creators: Daniel S. Karls and Junhao Li
Contributor: karls
Publication Year: 2019
DOI: https://doi.org/10.25950/c339ca32

Calculates lattice constant of hexagonal bulk structures at zero temperature and pressure by using simplex minimization to minimize the potential energy.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Equilibrium lattice constants for hcp Cr v005 view 86097
Equilibrium lattice constants for hcp Fe v005 view 111057
Equilibrium lattice constants for hcp Ni v005 view 84578


Linear thermal expansion coefficient of cubic crystal structures v002

Creators:
Contributor: mjwen
Publication Year: 2024
DOI: https://doi.org/10.25950/9d9822ec

This Test Driver uses LAMMPS to compute the linear thermal expansion coefficient at a finite temperature under a given pressure for a cubic lattice (fcc, bcc, sc, diamond) of a single given species.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Linear thermal expansion coefficient of bcc Cr at 293.15 K under a pressure of 0 MPa v002 view 512689
Linear thermal expansion coefficient of bcc Fe at 293.15 K under a pressure of 0 MPa v002 view 533534
Linear thermal expansion coefficient of fcc Ni at 293.15 K under a pressure of 0 MPa v002 view 1098359


Phonon dispersion relations for an fcc lattice v004

Creators: Matt Bierbaum
Contributor: mattbierbaum
Publication Year: 2019
DOI: https://doi.org/10.25950/64f4999b

Calculates the phonon dispersion relations for fcc lattices and records the results as curves.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Phonon dispersion relations for fcc Ni v004 view 126351


High-symmetry surface energies in cubic lattices and broken bond model v004

Creators: Matt Bierbaum
Contributor: mattbierbaum
Publication Year: 2019
DOI: https://doi.org/10.25950/6c43a4e6

Calculates the surface energy of several high symmetry surfaces and produces a broken-bond model fit. In latex form, the fit equations are given by:

E_{FCC} (\vec{n}) = p_1 (4 \left( |x+y| + |x-y| + |x+z| + |x-z| + |z+y| +|z-y|\right)) + p_2 (8 \left( |x| + |y| + |z|\right)) + p_3 (2 ( |x+ 2y + z| + |x+2y-z| + |x-2y + z| + |x-2y-z| + |2x+y+z| + |2x+y-z| +|2x-y+z| +|2x-y-z| +|x+y+2z| +|x+y-2z| +|x-y+2z| +|x-y-2z| ) + c

E_{BCC} (\vec{n}) = p_1 (6 \left( | x+y+z| + |x+y-z| + |-x+y-z| + |x-y+z| \right)) + p_2 (8 \left( |x| + |y| + |z|\right)) + p_3 (4 \left( |x+y| + |x-y| + |x+z| + |x-z| + |z+y| +|z-y|\right)) +c.

In Python, these two fits take the following form:

def BrokenBondFCC(params, index):

import numpy
x, y, z = index
x = x / numpy.sqrt(x**2.+y**2.+z**2.)
y = y / numpy.sqrt(x**2.+y**2.+z**2.)
z = z / numpy.sqrt(x**2.+y**2.+z**2.)

return params[0]*4* (abs(x+y) + abs(x-y) + abs(x+z) + abs(x-z) + abs(z+y) + abs(z-y)) + params[1]*8*(abs(x) + abs(y) + abs(z)) + params[2]*(abs(x+2*y+z) + abs(x+2*y-z) +abs(x-2*y+z) +abs(x-2*y-z) + abs(2*x+y+z) +abs(2*x+y-z) +abs(2*x-y+z) +abs(2*x-y-z) + abs(x+y+2*z) +abs(x+y-2*z) +abs(x-y+2*z) +abs(x-y-2*z))+params[3]

def BrokenBondBCC(params, x, y, z):


import numpy
x, y, z = index
x = x / numpy.sqrt(x**2.+y**2.+z**2.)
y = y / numpy.sqrt(x**2.+y**2.+z**2.)
z = z / numpy.sqrt(x**2.+y**2.+z**2.)

return params[0]*6*(abs(x+y+z) + abs(x-y-z) + abs(x-y+z) + abs(x+y-z)) + params[1]*8*(abs(x) + abs(y) + abs(z)) + params[2]*4* (abs(x+y) + abs(x-y) + abs(x+z) + abs(x-z) + abs(z+y) + abs(z-y)) + params[3]
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Broken-bond fit of high-symmetry surface energies in bcc Cr v004 view 71743
Broken-bond fit of high-symmetry surface energies in bcc Fe v004 view 154027
Broken-bond fit of high-symmetry surface energies in fcc Ni v004 view 119879


Monovacancy formation energy and relaxation volume for cubic and hcp monoatomic crystals v001

Creators:
Contributor: efuem
Publication Year: 2023
DOI: https://doi.org/10.25950/fca89cea

Computes the monovacancy formation energy and relaxation volume for cubic and hcp monoatomic crystals.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Monovacancy formation energy and relaxation volume for bcc Cr view 434781
Monovacancy formation energy and relaxation volume for bcc Fe view 2104085
Monovacancy formation energy and relaxation volume for fcc Ni view 686527


Vacancy formation and migration energies for cubic and hcp monoatomic crystals v001

Creators:
Contributor: efuem
Publication Year: 2023
DOI: https://doi.org/10.25950/c27ba3cd

Computes the monovacancy formation and migration energies for cubic and hcp monoatomic crystals.
Test Test Results Link to Test Results page Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.

Measured in Millions of Whetstone Instructions (MWI)
Vacancy formation and migration energy for bcc Cr view 2351902
Vacancy formation and migration energy for bcc Fe view 1608499
Vacancy formation and migration energy for fcc Ni view 957880


ElasticConstantsCrystal__TD_034002468289_000

ElasticConstantsCubic__TD_011862047401_006
Test Error Categories Link to Error page
Elastic constants for diamond Fe at zero temperature v001 other view

EquilibriumCrystalStructure__TD_457028483760_002
Test Error Categories Link to Error page
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype A2B_cF24_227_c_b v002 other view
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype A2B_cF24_227_c_b v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A2B_cF24_227_c_b v002 other view
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype A3B_cF16_225_ac_b v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A3B_cF16_225_ac_b v002 other view
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype A3B_cP4_221_c_a v002 other view
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype A3B_cP4_221_c_a v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A3B_cP4_221_c_a v002 other view
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype A3B_tI8_139_ad_b v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype A3B_tI8_139_ad_b v002 other view
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_cF4_225_a v002 other view
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_cF4_225_a v002 other view
Equilibrium crystal structure and energy for Ni in AFLOW crystal prototype A_cF4_225_a v002 other view
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_cI2_229_a v002 other view
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_cI2_229_a v002 other view
Equilibrium crystal structure and energy for Ni in AFLOW crystal prototype A_cI2_229_a v002 other view
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_cP8_223_ac v002 other view
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_hP2_194_c v002 other view
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_hP2_194_c v002 other view
Equilibrium crystal structure and energy for Ni in AFLOW crystal prototype A_hP2_194_c v002 other view
Equilibrium crystal structure and energy for Cr in AFLOW crystal prototype A_tP28_136_f2ij v002 other view
Equilibrium crystal structure and energy for Fe in AFLOW crystal prototype A_tP28_136_f2ij v002 other view
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype AB2_cF24_227_a_d v002 other view
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype AB2_cF24_227_a_d v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB2_cF24_227_a_d v002 other view
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype AB3_cF16_225_a_bc v002 other view
Equilibrium crystal structure and energy for CrNi in AFLOW crystal prototype AB3_cF16_225_a_bc v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB3_cF16_225_a_bc v002 other view
Equilibrium crystal structure and energy for CrFe in AFLOW crystal prototype AB3_cP4_221_a_c v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB3_cP4_221_a_c v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB3_tI8_139_a_bd v002 other view
Equilibrium crystal structure and energy for FeNi in AFLOW crystal prototype AB_tP2_123_a_d v002 other view

EquilibriumCrystalStructure__TD_457028483760_003

StackingFaultFccCrystal__TD_228501831190_002
Test Error Categories Link to Error page
Stacking and twinning fault energies for fcc Ni v002 other view



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