Analysis of the evolution of Mg<sub>2</sub>Si precipitates during continuous cooling and subsequent re-heating of a 6061 aluminum alloy with differential scanning calorimetry and a simple model-Reference-Cited by-同舟云学术

Analysis of the evolution of Mg₂Si precipitates during continuous cooling and subsequent re-heating of a 6061 aluminum alloy with differential scanning calorimetry and a simple model

Published:2022-02-24 Issue:4 Volume:113 Page:316-326
ISSN:1862-5282
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Falkinger Georg¹^ORCID,Reisecker Christian¹,Mitsche Stefan²

Affiliation:

1. AMAG rolling GmbH , Lamprechtshauserstrasse 65 , Ranshofen , 5282 , Austria

2. Institute of Electron Microscopy and Nanoanalysis , Technische Universität Graz , Graz , Austria

Abstract

Abstract In Al–Mg–Si alloys the presence of β-Mg2Si precipitates crucially affects strength and recrystallization during hot deformation and annealing. This work contributes to the understanding of the evolution of β-Mg2Si precipitates throughout a typical production process by investigating a continuous cooling and re-heating sequence with differential scanning calorimetry at varying rates. A simple model for nucleation and growth with improved numerical properties is presented and validated with the help of the calorimetric curves. The model, which is designed for future implementation in a finite element software, is shown to be very suitable for predicting the phase formation during cooling but limited for predicting the phase dissolution during re-heating.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.1515/ijmr-2021-8443/pdf

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