Numerical Simulation for Grain Refinement of Aluminum Alloy by Multi-phase-field Model Coupled with CALPHAD

Nomoto, Sukeharu; Minamoto, Satoshi; Nakajima, Keiji

doi:10.2355/isijinternational.49.1019

Cited by 13 publications

(12 citation statements)

References 16 publications

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“…Recent work on Al-Alloys comprises effects of flow on dendritic growth [47], simulations on grain refinement [103], rheo-casting of Al alloys [104] and porosity formation during solidification of A356 [105].…”

Section: Al Alloysmentioning

confidence: 99%

Phase-field based simulation of microstructure evolution in technical alloy grades

Schmitz

Böttger

Eiken

et al. 2010

Int J Adv Eng Sci Appl Math

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Scope of the present article is to review the current state of the art with respect to simulation of microstructure evolution based on the multiphase-field approach in technical alloy grades. Starting from a short overview about computational thermodynamics and kinetics and respective databases for technical alloys, an engineering approach to phase-field and multiphase-field models will be depicted in order to allow for a basic explanation of these methods-in general being developed by physicists and mathematicians-for materials scientists and metallurgists. These explanations are followed by examples of applications of the multiphase-field method to solidification and solid state transformations in steels, cast iron, superalloys, Al-and Mg-alloys, solders and other alloys and compounds. The article is concluded by a short description of present and future trends.

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Section: Al Alloysmentioning

confidence: 99%

Phase-field based simulation of microstructure evolution in technical alloy grades

Schmitz

Böttger

Eiken

et al. 2010

Int J Adv Eng Sci Appl Math

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“…A detailed description of the phase field model is found elsewhere. [31][32][33][34][35] . (8)), couples the phase-field equations to the diffusion equations.…”

Section: Description Of the Phase Field Modelmentioning

confidence: 99%

“…Microstructure evolution during this process is simulated using phase field method, with the help of commercially available solver Micress. [25][26][27][28][29][30][31] Thermodynamic descriptions needed to simulate microstructure evolution are provided by coupling CALPHAD with Micress software. The simulation results are then compared with the experimental observations.…”

Section: Introductionmentioning

confidence: 99%

Phase Field Simulation of Equiaxed Microstructure Formation during Semi-solid Processing of A380 Al Alloy

et al. 2014

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A phase field modelling approach is implemented in the present study towards simulation of microstructure evolution during cooling slope semi solid slurry generation process of A380 Aluminium alloy. First, experiments are performed to evaluate the number of seeds required within the simulation domain to simulate near spherical microstructure formation, occurs during cooling slope processing of the melt. Subsequently, microstructure evolution is studied employing a phase field method. Simulations are performed to understand the effect of cooling rate on the slurry microstructure. Encouraging results are obtained from the simulation studies which are validated by experimental observations. The results obtained from mesoscopic phase field simulations are grain size, grain density, degree of sphericity of the evolving primary Al phase and the amount of solid fraction present within the slurry at different time frames. Effect of grain refinement also has been studied with an aim of improving the slurry microstructure further. Insight into the process has been obtained from the numerical findings, which are found to be useful for process control.

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“…More specifically, for example the single phase solidification for pure substance and binary alloy systems, [96][97][98] and the solidification process for multicomponent and multiphase alloy systems. [99][100][101][102][103][104][105][106][107] The important works on the phase-field modeling and their applications can be found in several review articles. 85,[87][88][89] Here, we briefly review the recent development of the quantitative phase-field model.…”

Section: Phase-field Modeling (Microscopic-scale)mentioning

confidence: 99%

Methodological Progress for Computer Simulation of Solidification and Casting

Nakajima

Zhang²,

Oikawa

et al. 2010

ISIJ Int.

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The dramatic progress made over the last 10 to 15 years in the field of "computer simulation of solidification and casting" is greatly due to the supports by academic as well as industrial research. The driving force behind this undertaking was the promise of predictive capabilities that will allow process and material developments. Here, the recent works on modeling were summarized, for the macrosegregation in the macroscale simulation, and the Cellular Automaton, the solidification path combined with the microsegregation, the phase-field model in the meso-scale and micro-scale simulation.

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Numerical Simulation for Grain Refinement of Aluminum Alloy by Multi-phase-field Model Coupled with CALPHAD

Cited by 13 publications

References 16 publications

Phase-field based simulation of microstructure evolution in technical alloy grades

Phase-field based simulation of microstructure evolution in technical alloy grades

Phase Field Simulation of Equiaxed Microstructure Formation during Semi-solid Processing of A380 Al Alloy

Methodological Progress for Computer Simulation of Solidification and Casting

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