Kinetic model for the coarsening of complex particle in weld HAZ

용접 열영향부에서의 복합 석출물의 조대화 거동 예측 모델

  • 문준오 (한양대학교 신소재 공학과) ;
  • 김상훈 (한양대학교 신소재 공학과) ;
  • 이창희 (한양대학교 신소재 공학과) ;
  • 정홍철 (포스코 기술 연구소 접합연구 그룹) ;
  • 이종봉 (포스코 기술 연구소 접합연구 그룹)
  • Published : 2005.11.17

Abstract

A kinetic model for particle coarsening behavior in the weld heat affected zone (HAZ) was proposed. Unlike the conventional approach, where the mean-sized particle is considered to grow continuously, the proposed model considered the critical particle size which can be derived from the Gibbs-Thomson equation. In this study, the proposed particle coarsening model was applied to study the behavior of (Ti, Nb )(C, N) complex particle in the weld HAZ. The predicted particle size distributions using the proposed model were in agreement with the experimental results.

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