It is of high interest to describe alloy solidification processes with numerical simulations. In order to predict the material behavior as precisely as possible, a ternary phase, bi-scale numerical model will be presented. This paper is based on a coupled thermo-mechanical, two-phase, two-scale finite element model developed by Moj et~al. [2], where the theory of porous media (TPM) [1] has been used. Finite plasticity extended by secondary power-law creep is utilized to describe the solid phase and linear visco-elasticity with Darcy's law of permeability for the liquid phase, respectively. Here, the microscopic, temperature-driven phase transition approach is replaced by the diffusion-driven 0D model according to Wang and Beckermann [3]. The decisive material properties during solidification are captured by phenomenological formulations for dendritic growth and solute diffusion processes. A columnar as well as an equiaxial solidification example will be shown to demonstrate the principal performance of the presented model. (\copyright 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
%0 Journal Article
%1 Henning.2016
%A Henning, Carla
%A Moj, Lukas
%A Ricken, Tim
%D 2016
%J PAMM
%K imported
%N 1
%P 449--450
%R 10.1002/pamm.201610213
%T A ternary phase bi-scale FE-model for diffusion-driven dendritic alloy solidification processes
%V 16
%X It is of high interest to describe alloy solidification processes with numerical simulations. In order to predict the material behavior as precisely as possible, a ternary phase, bi-scale numerical model will be presented. This paper is based on a coupled thermo-mechanical, two-phase, two-scale finite element model developed by Moj et~al. [2], where the theory of porous media (TPM) [1] has been used. Finite plasticity extended by secondary power-law creep is utilized to describe the solid phase and linear visco-elasticity with Darcy's law of permeability for the liquid phase, respectively. Here, the microscopic, temperature-driven phase transition approach is replaced by the diffusion-driven 0D model according to Wang and Beckermann [3]. The decisive material properties during solidification are captured by phenomenological formulations for dendritic growth and solute diffusion processes. A columnar as well as an equiaxial solidification example will be shown to demonstrate the principal performance of the presented model. (\copyright 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
@article{Henning.2016,
abstract = {It is of high interest to describe alloy solidification processes with numerical simulations. In order to predict the material behavior as precisely as possible, a ternary phase, bi-scale numerical model will be presented. This paper is based on a coupled thermo-mechanical, two-phase, two-scale finite element model developed by Moj et~al. [2], where the theory of porous media (TPM) [1] has been used. Finite plasticity extended by secondary power-law creep is utilized to describe the solid phase and linear visco-elasticity with Darcy's law of permeability for the liquid phase, respectively. Here, the microscopic, temperature-driven phase transition approach is replaced by the diffusion-driven 0D model according to Wang and Beckermann [3]. The decisive material properties during solidification are captured by phenomenological formulations for dendritic growth and solute diffusion processes. A columnar as well as an equiaxial solidification example will be shown to demonstrate the principal performance of the presented model. ({\copyright} 2016 Wiley-VCH Verlag GmbH {\&} Co. KGaA, Weinheim)},
added-at = {2019-11-06T16:19:50.000+0100},
author = {Henning, Carla and Moj, Lukas and Ricken, Tim},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/25a0e676dc7191cbaee49aed4e69c148d/timricken},
doi = {\url{10.1002/pamm.201610213}},
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interhash = {484491fc65e80d950be24c8cc88d5706},
intrahash = {5a0e676dc7191cbaee49aed4e69c148d},
issn = {1617-7061},
journal = {{PAMM}},
keywords = {imported},
number = 1,
pages = {449--450},
timestamp = {2019-11-06T15:19:50.000+0100},
title = {{A ternary phase bi-scale FE-model for diffusion-driven dendritic alloy solidification processes}},
volume = 16,
year = 2016
}