TY - JOUR
T1 - Computer Modeling of Grain Structure Formation during Quenching including Algorithms with Pre-and Post-Solidification
AU - Ramírez-López, Adán
AU - Dávila-Maldonado, Omar
AU - Nájera-Bastida, Alfonso
AU - Morales, Rodolfo Dávila
AU - Muñiz-Valdés, Carlos Rodrigo
AU - Rodríguez-ávila, Jafeth
N1 - Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/4
Y1 - 2022/4
N2 - Simulation of the grain growth process, as a function of steel heat transfer conditions, is helpful for predicting grain structures of continuous cast steel products. Many authors have developed models based on numerical methods to simulate grain growth during metal solidification. Nevertheless, the anisotropic nature of grain structures makes necessary the employment of new mathematical methods such as chaos theory, fractals, and probabilistic and stochastic theories of simulation. The problem is significant for steelmakers to avoid defects in products and to control the steel microstructure during the continuous casting process. This work discusses the influence of nodal solidification times and computer algorithms on the dynamic formation of the chill, columnar, and equiaxed zones including physical phenomena such as nucleation and grain growth. Moreover, the model incorporates pre-nucleation and pre-growth routines in the original algorithm. There is a description of the influence of the mathematical parameter criteria and probabilities over the grain morphology obtained after solidification. Finally, an analysis of these algorithms elucidates the differ-ences between these structures and those obtained from models considering only the solidification.
AB - Simulation of the grain growth process, as a function of steel heat transfer conditions, is helpful for predicting grain structures of continuous cast steel products. Many authors have developed models based on numerical methods to simulate grain growth during metal solidification. Nevertheless, the anisotropic nature of grain structures makes necessary the employment of new mathematical methods such as chaos theory, fractals, and probabilistic and stochastic theories of simulation. The problem is significant for steelmakers to avoid defects in products and to control the steel microstructure during the continuous casting process. This work discusses the influence of nodal solidification times and computer algorithms on the dynamic formation of the chill, columnar, and equiaxed zones including physical phenomena such as nucleation and grain growth. Moreover, the model incorporates pre-nucleation and pre-growth routines in the original algorithm. There is a description of the influence of the mathematical parameter criteria and probabilities over the grain morphology obtained after solidification. Finally, an analysis of these algorithms elucidates the differ-ences between these structures and those obtained from models considering only the solidification.
KW - computer simulation
KW - nucleation and grain growth
KW - probabilities and criteria
KW - steel solidification
UR - http://www.scopus.com/inward/record.url?scp=85127707028&partnerID=8YFLogxK
U2 - 10.3390/met12040623
DO - 10.3390/met12040623
M3 - Artículo
AN - SCOPUS:85127707028
SN - 2075-4701
VL - 12
JO - Metals
JF - Metals
IS - 4
M1 - 623
ER -