Modeling the Heterogeneity Spatial Distribution of Coarse Second Phase Particle on Recrystallization Behavior in 7XXX Al Alloy

Abstract:

The heterogeneity of recrystallized subgrains is a substantial parameter which ought to be consider when controlling recrystallization fraction within a microstructure is needed. The statistical descriptor pair-correlation function is employed as stereological reference for reconstructing the nucleation sites spatial distribution within given volumes based on 2D data. The aim of the current study is to implement the 3D reconstructed particles distribution into a Monte Carlo approach to explore the evolution of microstructure in 7xxx Al alloy during homogenization process. Once the stored energy around the coarse particles is consumed recrystallizing grains the recrystallization is fulfilled. The simulated grain structures are qualitatively evolved in manner of the recrystallization of experimental data, and this verify that recrystallization process is mainly controlled by PSN mechanism.

• Periodical: Materials Science Forum (Volume 1103)
• Pages: 13-25
• DOI: https://doi.org/10.4028/p-eu4JYI
• Online since: October 2023
• Authors: Khaled Adam*, David Field
• Keywords: AA7xxx, Coarse Particle, Monte Carlo Method, Pair Correlation Function, Recrystallization

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