Numerical Simulation of Solidification Structure Formation during Continuous Casting in Fe-0.7mass%C Alloy Using Cellular Automaton Method

Yamazaki, Minoru; Natsume, Yukinobu; Harada, Hiroshi; Ohsasa, Kenichi

doi:10.2355/isijinternational.46.903

Cited by 71 publications

(50 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7,8) Recently, the CA (cellular automaton) model has considered the effects of fluid flow on the solidification process. 6) At present, there are a few models 3,5,7,8) using the CA method for simulating the solidification structure of continuous casting steel, but there are few examples 11) about investigating some special mechanisms of the solidification process of billet based on this method.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5] Experiment method and simulation method are two very important ways to investigate the solidification structure. Although many experimental works have been carried out in order to obtain the optimum solidification process of continuous casting, it is also very desirable to establish mathematical models to simulate the evolution of the solidification structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compactness Degree of Longitudinal Section of Outer Columnar Grain Zone in Continuous Casting Billet Using Cellular Automaton-Finite Element Method

et al. 2013

View full text Add to dashboard Cite

In order to investigate the compactness degree of longitudinal section of the outer columnar grain zone in continuous casting billet, a Cellular Automaton-Finite Element coupling model was first developed. After validation, the solidification structures of billet under different conditions were simulated. The compactness degree of longitudinal section of billet is evaluated by the grain number in the same area. Because the widths of the columnar grain zone of billet under different conditions are different, the same zone was chosen for comparison and the zone was named as outer columnar grain zone. Thereafter, the compactness degree of longitudinal section of the outer columnar grain zone is found to be decreased with the increase of superheat, and increased slightly with the increase of casting speed, and decreased slightly with the increase of mould cooling intensity. Meanwhile, the corresponding compactness degree is increased with the increase of maximum nucleation density, and decreased with the increase of mean nucleation undercooling, and also decreased with the increase of dendrite growth velocity. Moreover, it is shown that the compactness degree of longitudinal section of the outer columnar grain zone in continuous casting billet is closely related to the average temperature gradient of the solidification process of the outer columnar grain zone, i.e., the former will be decreased when increasing the latter. This phenomenon can be probably attributed to two features that the established model has considered the preferential growth direction and new nucleation cores in the solidification front of the columnar grains.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compactness Degree of Longitudinal Section of Outer Columnar Grain Zone in Continuous Casting Billet Using Cellular Automaton-Finite Element Method

et al. 2013

View full text Add to dashboard Cite

show abstract

“…In Oldfield's continuous model, 50) a power-law function was used to evaluate the nucleation rate. For less adjustable parameters, Ohsasa et al 51,52) adopted this continuous model in several of their CA simulations. In Thevoz et al's continuous model, 53) a statistical function, that is, a Gaussian distribution of nucleation density with undercooling for the nucleation site distribution was used, .…”

Section: Grain Nucleation Modelsmentioning

confidence: 99%

Methodological Progress for Computer Simulation of Solidification and Casting

Nakajima

Zhang²,

Oikawa

et al. 2010

ISIJ Int.

View full text Add to dashboard Cite

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.

show abstract

“…It has been demonstrated that the use of a combination of a fixed value of a and a variable n is effective for the simulation of solidification structure formation. 19) In the present simulation, the nucleation parameter (nϭ7) evaluated from the simulation for solidification structure formation of Fe-C binary alloy during continuous casting process 11) was used. Figure 6 shows the simulated microstructure evolution for Fe-0.4mass%C alloy during continuous cooling process.…”

Section: Simulation Proceduresmentioning

confidence: 99%

Numerical Model of Solidification Structure Formation in Fe–C Alloy with Peritectic Transformation

et al. 2008

Self Cite

View full text Add to dashboard Cite

Numerical Simulation of Solidification Structure Formation during Continuous Casting in Fe-0.7mass%C Alloy Using Cellular Automaton Method

Cited by 71 publications

References 14 publications

Compactness Degree of Longitudinal Section of Outer Columnar Grain Zone in Continuous Casting Billet Using Cellular Automaton-Finite Element Method

Compactness Degree of Longitudinal Section of Outer Columnar Grain Zone in Continuous Casting Billet Using Cellular Automaton-Finite Element Method

Methodological Progress for Computer Simulation of Solidification and Casting

Numerical Model of Solidification Structure Formation in Fe–C Alloy with Peritectic Transformation

Contact Info

Product

Resources

About

Numerical Simulation of Solidification Structure Formation during Continuous Casting in Fe-0.7mass%C Alloy Using Cellular Automaton Method

Cited by 71 publications

References 14 publications

Compactness Degree of Longitudinal Section of Outer Columnar Grain Zone in Continuous Casting Billet Using Cellular Automaton-Finite Element Method

Compactness Degree of Longitudinal Section of Outer Columnar Grain Zone in Continuous Casting Billet Using Cellular Automaton-Finite Element Method

Methodological Progress for Computer Simulation of Solidification and Casting

Numerical Model of Solidification Structure Formation in Fe&ndash;C Alloy with Peritectic Transformation

Contact Info

Product

Resources

About

Numerical Model of Solidification Structure Formation in Fe–C Alloy with Peritectic Transformation