Analytical and Experimental Investigations into Microstructure Evolution in Hot Bar Stretching

摘要

Transition in austenite grain size distribution after hot forging, which is closely relate to recrystallization, is investigated. Rapid change in grain size distribution just after hot bar stretching is experimentally obtained by hot compression test with controlled rapid quenching, and experimental results are examined by mi- crostructure analysis using incremental approach with three-dimensional finite element analysis for plastic deformation.