Prediction Model for the Microstructure and Properties in Weld Heat Affected Zone : Ⅰ. Trends in The Development of Model for the Prediction of Material Properties in the Weld HAZ

Moon, Joon-Oh; Lee, Chang-Hee

Journal of KWJS 2005;23(4):17-26.
Published online September 22, 2005.

[리뷰와 트렌드]용접 열영향부 미세조직 및 재질 예측 모델링 : Ⅰ. 용접부 재질 예측 모델 기술 개발 연구 동향

Prediction Model for the Microstructure and Properties in Weld Heat Affected Zone : Ⅰ. Trends in The Development of Model for the Prediction of Material Properties in the Weld HAZ

Joon-Oh Moon, Chang-Hee Lee

Abstract

HAZ (Heat Affected Zone) which occurs during welding thermal cycle has an important effect on the mechanical properties of the weld metal. So there were many efforts to develop the model which is able to predict the microstructure and mechanical properties in weld HAZ and lot of metallurgical models have reported since early 1940. These models are justifiable based on the reasonable assumption and analytical approach, but they also have limitation by interesting alloying system and assumption in each literature. Therefore, this study summaries the previous models for prediction of properties in weld HAZ. The several issues to solve for developing the more reliable model were proposed.