Microanalysis-Based Simulation of Heterogeneous Dispersoid Distribution in an Al Alloy After the Homogenization Stage

Nicolás García Arango; Roman Schuster; Rainer Abart; Erwin Povoden-Karadeniz

doi:10.3390/cryst15080695

Microanalysis-Based Simulation of Heterogeneous Dispersoid Distribution in an Al Alloy After the Homogenization Stage

Nicolás García Arango (Korresp. Autor*in)
, Roman Schuster
, Rainer Abart
, Erwin Povoden-Karadeniz

Department für Lithosphärenforschung

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

We simulate the dispersoid distribution within the Al matrix grains of an aluminum 6082 alloy by combining finite difference cell modeling with mean-field precipitation simulations. The results demonstrate that the initial as-cast microstructure and the heating rate during the ramp-up to the isothermal homogenization temperature are the most important factors governing the dispersoid particle distribution. The simulation results are validated by Electron Probe Microanalysis (EPMA) and Optical Microscopy on experimental run products. The results indicate that dispersoids can only achieve uniform distribution throughout the grain when the heating rate to the homogenization temperature is sufficiently slow.

Originalsprache	Englisch
Aufsatznummer	695
Fachzeitschrift	Crystals
Jahrgang	15
Ausgabenummer	8
DOIs	https://doi.org/10.3390/cryst15080695
Publikationsstatus	Veröffentlicht - 30 Juli 2025

Fördermittel

The financial support from the Austrian Federal Ministry for Digital and Economic Affairs and the National Foundation for Research, Technology, and Development is gratefully acknowledged. The authors acknowledge TU Wien Bibliothek for financial support through its Open Access Funding Programme. The authors gratefully acknowledge the provision of sample material by Neuman Aluminium. This research was funded by Christian Doppler Forschungsgesellschaft in the framework of the CD-Laboratory of Interfaces and Precipitation Engineering (CDL-IPE).

ÖFOS 2012

205019 Materialwissenschaften
205017 Werkstofftechnik

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10.3390/cryst15080695Lizenz: CC BY 4.0

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Zitationsweisen

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abstract = "We simulate the dispersoid distribution within the Al matrix grains of an aluminum 6082 alloy by combining finite difference cell modeling with mean-field precipitation simulations. The results demonstrate that the initial as-cast microstructure and the heating rate during the ramp-up to the isothermal homogenization temperature are the most important factors governing the dispersoid particle distribution. The simulation results are validated by Electron Probe Microanalysis (EPMA) and Optical Microscopy on experimental run products. The results indicate that dispersoids can only achieve uniform distribution throughout the grain when the heating rate to the homogenization temperature is sufficiently slow.",

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