97 citations · 322 across the 13 of their papers we have counts for
11 papers · 1 filter
A quantitative variational phase field framework
Arnab Mukherjee, James A. Warren, Peter W. Voorhees
The finite solid-liquid interface width in phase field models results in non-equilibrium effects, including solute trapping. Prior phase field modeling has shown that this extra de…
Simulation of coarsening in two-phase systems with dissimilar mobilities
W. Beck Andrews, Peter W. Voorhees, Katsuyo Thornton
In this work, we apply phase field simulations to examine the coarsening behavior of morphologically complex two-phase microstructures in which the phases have highly dissimilar mo…
Phase Field Benchmark Problems for Dendritic Growth and Linear Elasticity
Andrea M. Jokisaari, Peter W. Voorhees, Jonathan E. Guyer +2
We present the second set of benchmark problems for phase field models that are being jointly developed by the Center for Hierarchical Materials Design (CHiMaD) and the National In…
Self-consistent modeling of anisotropic interfaces and missing orientations: Derivation from phase-field crystal
Nana Ofori-Opoku, James A. Warren, Peter W. Voorhees
Highly anisotropic interfaces play an important role in the development of material microstructure. Using the diffusive atomistic phase-field crystal (PFC) formalism, we determine…
Non-equilibrium Solute Capture in Passivating Oxide Films
Xiao-xiang Yu, Ahmet Gulec, Quentin Sherman +5
If all humans vanished tomorrow, almost every metal structure would collapse within a century or less, the metal converting to an oxide. In applications ranging from the mature tec…
Predicting the morphologies of γ' precipitates in cobalt-based superalloys
Andrea M. Jokisaari, Shahab S. Naghavi, Chris Wolverton +2
Cobalt-based alloys with γ/γ' microstructures have the potential to become the next generation of superalloys, but alloy compositions and processing steps must be optimized to impr…
Simulating complex crystal structures using the phase-field crystal model
Eli Alster, David Montiel, Katsuyo Thornton +1
We introduce a phase-field crystal model that creates an array of complex three- and two-dimensional crystal structures via a numerically tractable three-point correlation function…
Phase-field crystal model for ordered crystals
Eli Alster, K. R. Elder, Jeffrey J. Hoyt +1
We describe a general method to model multicomponent ordered crystals using the phase-field crystal (PFC) formalism. As a test case, a generic B2 compound is investigated. We are a…
Eutectic Growth in Two-Phase Multicomponent Alloys
Oriane Senninger, Peter W Voorhees
A theory of two-phase eutectic growth for a multicomponent alloy is presented. This theory employs the thermodynamic equilibrium at the solid/liquid interface and thus makes it pos…
Phase-Field Crystal Model with a Vapor Phase
Edwin J. Schwalbach, James A. Warren, Kuo-An Wu +1
Phase-Field Crystal (PFC) models are able to resolve atomic length scale features of materials during temporal evolution over diffusive time scales. Traditional PFC models contain…
Controlling crystal symmetries in phase-field crystal models
Kuo-An Wu, Mathis Plapp, Peter W Voorhees
We investigate the possibility to control the symmetry of ordered states in phase-field crystal models by tuning nonlinear resonances. In two dimensions, we find that a state of sq…