Preliminary Simulation for Competing Behaviors between Recrystallization and Transformation in Dual Phase Steels

Kaneharu Okuda; Hiromi Yoshida; Yasunobu Nagataki; Yasushi Tanaka; Anthony D. Rollett

doi:10.4028/www.scientific.net/MSF.558-559.1145

Paper Titles

On Strain-Induced Grain Growth Using Modified Monte Carlo Method and Digital Image Correlation Technique
p.1121

Prediction of the Microstructural Evolution during Hot Strip Rolling of Nb Microalloyed Steels
p.1127

Numerical Modelling of Plastic Deformation and Subsequent Recrystallization in Polycrystalline Materials, Based on a Digital Material Framework
p.1133

A New Approach to Model Heterogonous Recrystallization Kinetics Based on the Natural Inhomogeneity of Deformation
p.1139

Preliminary Simulation for Competing Behaviors between Recrystallization and Transformation in Dual Phase Steels
p.1145

Mixed Vertex - Monte Carlo Model of Recrystallization
p.1151

Generalized Vertex Model - Study of Recrystallization in Copper
p.1157

Modeling the Evolution of Orientation Distribution Functions during Grain Growth of some Ti and Zr Alloys
p.1163

Modeling Recrystallization of Aluminum Alloys: A Refined Approach to Particle Stimulated Nucleation
p.1169

HomeMaterials Science ForumMaterials Science Forum Vols. 558-559Preliminary Simulation for Competing Behaviors...

Preliminary Simulation for Competing Behaviors between Recrystallization and Transformation in Dual Phase Steels

Abstract:

The competitive behaviors between recrystallization and transformation during annealing in dual phase high-strength steels are studied both by experiments and by computer simulations. The Monte Carlo code was applied to simulate such competing behavior, explained the experimental results, as follows. (1) The progress of the transformation is affected by the starting point of the transformation in the course of recrystallization. Namely, if the transformation starts at the later stage of recrystallization, the n-value in JMAK equation is relatively high. (2) If the stored energy (driving force) of the transformation is above 5 times larger than that of the recrystallization, the effect of the stored energy is quite small. (3) If the number of nuclei were increased, the transformation proceeds a little faster, and then the transformed microstructures are significantly refined. When the transformation initiates at the early stage of the recrystallization, the number of nuclei can be increased by nucleation from the deformed matrix compared with the one from fully recrystallized matrix.