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Title: Understanding solidification of near eutectic alloy using Cellular Automata (CA)

Journal Article · · Computational Materials Science

The solidification microstructure of an alloy strongly influences the mechanical properties. Dendritic and eutectic solidification are two important pathways of alloy solidification. The formation of phases, and their size and distribution depend on which pathway to take. In contrast to the Scheil model that has been widely used in describing the solidification pathways of alloys manufactured from conventional casting approach, more sophisticated solidification models are required to describe the state-of-the art manufacturing processes, such as additive manufacturing where distinctly different phase morphology, size and distribution than conventional casting can form, due to the vast difference in cooling conditions. Therefore, this work is to develop a computational Cellular Automata framework which includes the modeling of nucleation and growth of dendritic and eutectic solidification, as well as their competition as a function of alloy composition, undercooling and cooling rate. Further, after individual solidification models were validated against analytical solutions, the models were then combined to predict the competition between dendritic and eutectic solidification in alloys with off-eutectic compositions. This work predicts increased cooling rates suppress the dendritic solidification and promote eutectic solidification. Although quantitative validation is needed, this finding is consistent with qualitative observation in literature.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2317774
Journal Information:
Computational Materials Science, Vol. 236, Issue 1; ISSN 0927-0256
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (55)

A Novel Processing Approach for Additive Manufacturing of Commercial Aluminum Alloys journal January 2016
Perspectives for cellular automata for the simulation of dendritic solidification – A review journal December 2014
Phase-field Modeling and Simulations of Dendrite Growth journal January 2014
Modeling Oxidation of AlCoCrFeNi High-Entropy Alloy Using Stochastic Cellular Automata journal September 2022
Modeling dendritic solidification of Al–3%Cu using cellular automaton and phase-field methods journal March 2013
A Scheil–Gulliver model dedicated to the solidification of steel journal March 2015
An analytical model of irregular eutectic growth and its application to Fe-C journal May 1987
Rapid solidification of Al-Cu eutectic alloy by laser remelting journal December 1989
Theory of eutectic growth under rapid solidification conditions journal April 1987
Cellular automaton simulation of three-dimensional dendrite growth in Al–7Si–Mg ternary aluminum alloys journal July 2015
Modeling of microstructure evolution in regular eutectic growth journal October 2002
Solute diffusion model for equiaxed dendritic growth: Analytical solution journal December 1987
Laser resolidification of the AlAl2Cu eutectic: The coupled zone journal November 1992
Phase-field model for solidification of a eutectic alloy
  • Wheeler, A. A.; McFadden, G. B.; Boettinger, W. J.
  • Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, Vol. 452, Issue 1946, p. 495-525 https://doi.org/10.1098/rspa.1996.0026
journal December 1996
Eutectic growth: A modification of the Jackson and Hunt theory journal April 1991
Equiaxed dendrite growth in alloys at small supercooling journal February 1987
ExaCA: A performance portable exascale cellular automata application for alloy solidification modeling journal November 2022
Generalized Theory of Nucleation Kinetics. II. Athermal Nucleation Involving Spherical Clusters journal May 1968
Eutectic Growth Model Using Cell-Automaton Method journal January 2010
Modeling of Globular and Dendritic Structure Evolution in Solidification of an Al-7mass%Si Alloy. journal January 2001
Comparison of phase-field and cellular automaton models for dendritic solidification in Al–Cu alloy journal April 2012
A Modified Cellular Automaton Model for the Quantitative Prediction of Equiaxed and Columnar Dendritic Growth journal December 2014
Modeling the grain growth kinetics by cellular automaton journal February 2007
Cellular Automata in Materials Science with Particular Reference to Recrystallization Simulation journal August 2002
Effect of copper and solidification conditions on the microstructure and mechanical properties of Al–Si–Mg alloys journal November 2004
Microstructural evolution during temperature gradient zone melting: Cellular automaton simulation and experiment journal April 2018
A Modified Cellular Automaton Model for the Simulation of Dendritic Growth in Solidification of Alloys. journal January 2001
Model for solute redistribution during rapid solidification journal February 1982
Local nonequilibrium effect on rapid dendritic growth in a binary alloy melt journal November 1997
Modeling of aluminum-silicon irregular eutectic growth by cellular automaton model journal March 2016
A coupled finite element-cellular automaton model for the prediction of dendritic grain structures in solidification processes journal July 1994
3D CAFE modeling of grain structures: application to primary dendritic and secondary eutectic solidification journal December 2011
Phase-field model of solidification of a binary alloy journal December 1998
Cellular automaton simulation and experimental validation of eutectic transformation during solidification of Al-Si alloys journal June 2022
A quantitative dendrite growth model and analysis of stability concepts journal August 2004
Mathematical Modeling of Iron and Steel Making Processes. Recent Advances in the Phase-field Model for Solidification. journal January 2001
Modeling of irregular eutectic microstructures in solidification of Al-Si alloys journal May 2004
Analytic solution for a non-axisymmetric isothermal dendrite journal January 2000
Virtual front tracking model for the quantitative modeling of dendritic growth in solidification of alloys journal March 2007
The Relationship between Dendrite Arm Spacing and Cooling Rate of Al-Si Casting Alloys in High Pressure Die Casting journal January 2014
Cooling rate and dendrite spacing control in direct metal deposition printed Cu-Fe alloys journal April 2022
Binary Solutions and the Lever Rule Revisited journal July 1997
Three-dimensional modeling of equiaxed dendritic growth on a mesoscopic scale journal February 1999
A novel 3D cellular automata-phase field model for computationally efficient dendrite evolution during bulk solidification journal May 2021
Quantitative cellular automaton model and simulations of dendritic and anomalous eutectic growth journal January 2019
Diffusionless Crystal Growth in Rapidly Solidifying Eutectic Systems journal April 2006
Microstructural features of Sc- and Zr-modified Al-Mg alloys processed by selective laser melting journal February 2017
The contribution of the nucleation process to grain formation in calculating solidification microstructure by CA-DFD journal January 2001
An introductory review of cellular automata modeling of moving grain boundaries in polycrystalline materials journal March 2010
Microstructure and properties of a high temperature Al–Ce–Mn alloy produced by additive manufacturing journal September 2020
Modified cellular automaton model for the prediction of dendritic growth with melt convection journal June 2004
GPU-Based Cellular Automata Model for Multi-Orient Dendrite Growth and the Application on Binary Alloy journal January 2023
A comparison of methods for the calculation of interface curvature in two-dimensional cellular automata solidification models journal August 2019
Examination of Dendritic Growth During Solidification of Ternary Alloys via a Novel Quantitative 3D Cellular Automaton Model journal December 2018
Sparse thermal data for cellular automata modeling of grain structure in additive manufacturing journal June 2020

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