Coupled Model for Particle Dissolution and Coarsening in Microalloyed Steels

Materials Science and Technology（2007）SCI 3区SCI 4区

Baosteel Res Inst

Cited 7|Views2

Abstract

The present paper presents an integrated model for predicting particle dissolution and coarsening upon heat treatment of microalloyed steels. This model considers the effect of critical particle size on the particle coarsening kinetics. It has been shown that the solute supply rejected from the dissolved particles smaller than the critical particle size is insufficient for the particle coarsening. It is, therefore, suggested that the particles assimilate solute atoms from the supersaturated matrix directly through lattice diffusion. The particle sizes predicted by the proposed model are in agreement with the experimental results in the literature.

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Key words

model,particle dissolution,particle coarsening,microalloyed steels

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