Crystal plasticitySuperalloyPhase-fieldCo-base superalloys with γ′-Co3(Al,W) precipitates show attractive properties in high temperature, while the creep concomitant with rafting of γ′ precipitates is a critical problem for this newly developed alloy. Creep properties and rafting morphology in Co...
A dislocation density-based crystal plasticity model was employed to describe the dislocation activity and spatial distribution of stress and strain fields. This plasticity model was coupled with a multi-phase-field model to simulate the propagation and growth of multiple twin variants in one grain. ...
Phase-field method (PFM) has become a mainstream computational method for predicting the evolution of nano and mesoscopic microstructures and properties during materials processes. The paper briefly reviews latest progresses in applying PFM to understanding the thermodynamic driving forces and mechanisms unde...
The phase-field method is a powerful and versatile computational approach for modeling the evolution of microstructures and associated properties for a wide variety of physical, chemical, and biological systems. However, existing high-fidelity phase-field models are inherently computationally expensive, req...
A recently developed phase-field crystal (PFC) model incorporates elasticity and plasticity in the microstructural evolution of materials naturally by representing the density field for the crystalline state by periodic functions and by using a constant density for liquid state. PFC is of great interest...
Gaubert A., Le Bouar Y., Finel A., " Coupling phase field and visco-plasticity to study rafting in Ni-base superalloys", Philosophical Magazine, 2009.A Gaubert, Y Le Bouar, and A Finel. Coupling phase field and vis- coplasticity to study rafting in ni-based superalloys. Philosophical ...
Cross coupled phase field evolution and heat transfer equations are discretized via the PDM to obtain the interface kinematics of polycrystalline boundary during solidification. A distinct feature of the PDM is its ability to represent derivative operators via a moving least-square approximation of the ...
[40]. Additionally, the conventional crystal plasticity model is unable to investigate the effect of twin microstructure on the mechanical behavior of magnesium at the nanometer scale [41]. Overcoming such limitations, we model herein the twinning process by a phase-field approach where the mobility...
A coupled crystal plasticity finite element (CPFE) – phase field (PF) method is thus developed to simulate the migration of interfaces and plastic deformation. We propose a dual-interface model that integrates the constrained-sharp interface in FE method to solve the deformation fields, and the ...
Phase-field modelling of fracture in single crystal plasticity GAMM-Mitteil., 39 (1) (2016), pp. 7-34 CrossrefView in ScopusGoogle Scholar de Souza Neto et al., 2011 E.A. de Souza Neto, D. Peric, D.R. Owen Computational Methods for Plasticity: Theory and Applications John Wiley & ...