Interatomic potential for the Al-Cu system

F Apostol, Y Mishin - Physical Review B—Condensed Matter and Materials …, 2011 - APS
An angular-dependent interatomic potential has been developed for the Al-Cu system based
on existing embedded-atom method potentials for Al and Cu and fitting of the cross …

An embedded-atom potential for the Cu–Ag system

PL Williams, Y Mishin, JC Hamilton - Modelling and Simulation in …, 2006 - iopscience.iop.org
A new embedded-atom method (EAM) potential has been constructed for Ag by fitting to
experimental and first-principles data. The potential accurately reproduces the lattice …

First-principles prediction of equilibrium precipitate shapes in Al-Cu alloys

C Wolverton - Philosophical magazine letters, 1999 - Taylor & Francis
A first-principles thermodynamic approach for studying coherent precipitation in size-
mismatched alloys is presented and applied to the well studied (but still controversial) …

Structural stability and lattice defects in copper: Ab initio, tight-binding, and embedded-atom calculations

Y Mishin, MJ Mehl, DA Papaconstantopoulos, AF Voter… - Physical Review B, 2001 - APS
We evaluate the ability of the embedded-atom method (EAM) potentials and the tight-
binding (TB) method to predict reliably energies and stability of nonequilibrium structures by …

First-principles/Phase-field modeling of θ′ precipitation in Al-Cu alloys

K Kim, A Roy, MP Gururajan, C Wolverton… - Acta Materialia, 2017 - Elsevier
We examine the equilibrium morphology of Al 2 Cu (θ′) precipitates in Al-Cu alloys using a
phase field method with the parameters supplied by first-principles density functional theory …

Atomistic calculations of interfacial energies, nucleus shape and size of θ′ precipitates in Al–Cu alloys

SY Hu, MI Baskes, M Stan, LQ Chen - Acta materialia, 2006 - Elsevier
θ′(Al2Cu) is one of the primary strengthening precipitates in Al–Cu alloys. Although the
precipitation sequence of various metastable phases in Al–Cu alloys is well known …

First-principles calculations of the phase diagrams of noble metals: Cu-Au, Cu-Ag, and Ag-Au

SH Wei, AA Mbaye, LG Ferreira, A Zunger - Physical Review B, 1987 - APS
It is shown how the temperature-composition phase diagrams and thermodynamic
properties of noble-metal alloys can be accurately reproduced by solving the three …

Machine learning for metallurgy I. A neural-network potential for Al-Cu

D Marchand, A Jain, A Glensk, WA Curtin - Physical review materials, 2020 - APS
High-strength metal alloys achieve their performance via careful control of precipitates and
solutes. The nucleation, growth, and kinetics of precipitation, and the resulting mechanical …

Predicting metastable phase boundaries in Al–Cu alloys from first-principles calculations of free energies: the role of atomic vibrations

C Ravi, C Wolverton, V Ozoliņš - Europhysics letters, 2006 - iopscience.iop.org
Metastable precipitate phase boundaries are difficult to ascertain experimentally and yet are
important for controlling the microstructure of precipitation-hardenable alloys. We …

Second-moment interatomic potential for gold and its application to molecular-dynamics simulations

H Chamati, NI Papanicolaou - Journal of Physics: Condensed …, 2004 - iopscience.iop.org
We have obtained a new interatomic potential for Au in the framework of the second-moment
approximation to the tight-binding model by fitting the total energy of the metal as a function …