TY - JOUR

T1 - Computer simulation of grain growth in particle dispersed structure

AU - Ohnuma, Ikuo

AU - Ohtani, Hiroshi

AU - Ishida, Kiyohito

AU - Nishizawa, Taiji

N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

PY - 1994

Y1 - 1994

N2 - The effect of dispersed particles on grain growth has been studied by computer simulation using a two-dimensional lattice model. The relation between R̄ and r̄, the mean radii of matrix grains and dispersed particles, is approximated by R̄=[(π/2αΦ)/f] 1/2 ·r̄, where f is the area fraction of dispersed phase, α is the correction factor for adjusting the pinning force, and Φ is the fraction of particles being located on grain boundaries. The parameters, α and Φ, have been evaluated by computer simulation, and it was concluded that Zener's relation in two dimensional structure; R̄=(π/4)·r̄/f is to be modified to R̄=(5.0/ √p)r̄/ √f, where p is a parameter representing the pinning effect in this simulation.

AB - The effect of dispersed particles on grain growth has been studied by computer simulation using a two-dimensional lattice model. The relation between R̄ and r̄, the mean radii of matrix grains and dispersed particles, is approximated by R̄=[(π/2αΦ)/f] 1/2 ·r̄, where f is the area fraction of dispersed phase, α is the correction factor for adjusting the pinning force, and Φ is the fraction of particles being located on grain boundaries. The parameters, α and Φ, have been evaluated by computer simulation, and it was concluded that Zener's relation in two dimensional structure; R̄=(π/4)·r̄/f is to be modified to R̄=(5.0/ √p)r̄/ √f, where p is a parameter representing the pinning effect in this simulation.

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U2 - 10.2320/jinstmet1952.58.10_1133

DO - 10.2320/jinstmet1952.58.10_1133

M3 - Article

AN - SCOPUS:0028531767

VL - 58

SP - 1133

EP - 1140

JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

SN - 0021-4876

IS - 10

ER -