Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016

This work combines two established models for precipitate growth in the bulk and at the grain boundary to investigate the growth of pure Si precipitates in the alloy AA6016 during slow cooling after hot rolling. Despite the simplicity of the approach, the predicted phase fractions and the predicted...

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Main Authors: Georg Falkinger, Robert Kahlenberg, Moritz Theissing, Stefan Mitsche, Angela Thum, Stefan Pogatscher
Format: Article
Language:English
Published: Taylor & Francis Group 2024-03-01
Series:European Journal of Materials
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Online Access:https://www.tandfonline.com/doi/10.1080/26889277.2024.2316914
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author Georg Falkinger
Robert Kahlenberg
Moritz Theissing
Stefan Mitsche
Angela Thum
Stefan Pogatscher
author_facet Georg Falkinger
Robert Kahlenberg
Moritz Theissing
Stefan Mitsche
Angela Thum
Stefan Pogatscher
author_sort Georg Falkinger
collection DOAJ
description This work combines two established models for precipitate growth in the bulk and at the grain boundary to investigate the growth of pure Si precipitates in the alloy AA6016 during slow cooling after hot rolling. Despite the simplicity of the approach, the predicted phase fractions and the predicted width of the precipitate-free zone are in agreement with the measured values. The model predictions suggest that ­raising the Si content and increasing the density of primary Fe-based particles reduces the fraction of grain boundary precipitates. The model correctly reproduces the technologically important effect of the cooling rate on intra- and intergranular growth. The model predictions can be used to optimize hot rolling schedules and the alloy design.
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series European Journal of Materials
spelling doaj-art-3f1d0e5fb4ec4c55af61747e99b523ce2025-08-20T01:59:00ZengTaylor & Francis GroupEuropean Journal of Materials2688-92772024-03-014110.1080/26889277.2024.2316914Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016Georg Falkinger0Robert Kahlenberg1Moritz Theissing2Stefan Mitsche3Angela Thum4Stefan Pogatscher5AMAG rolling GmbH, Ranshofen, AustriaMaterials Center, Leoben Forschung GmbH at Leoben, AustriaInstitute of Electron Microscopy and Nanoanalysis, TU, Graz, AustriaInstitute of Electron Microscopy and Nanoanalysis, TU, Graz, AustriaAMAG rolling GmbH, Ranshofen, AustriaInstitute of Nonferrous Metallurgy, Montanuniversität, Leoben, AustriaThis work combines two established models for precipitate growth in the bulk and at the grain boundary to investigate the growth of pure Si precipitates in the alloy AA6016 during slow cooling after hot rolling. Despite the simplicity of the approach, the predicted phase fractions and the predicted width of the precipitate-free zone are in agreement with the measured values. The model predictions suggest that ­raising the Si content and increasing the density of primary Fe-based particles reduces the fraction of grain boundary precipitates. The model correctly reproduces the technologically important effect of the cooling rate on intra- and intergranular growth. The model predictions can be used to optimize hot rolling schedules and the alloy design.https://www.tandfonline.com/doi/10.1080/26889277.2024.2316914Al-Mg-Si alloySi phasecollector plate modelhot rolling
spellingShingle Georg Falkinger
Robert Kahlenberg
Moritz Theissing
Stefan Mitsche
Angela Thum
Stefan Pogatscher
Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016
European Journal of Materials
Al-Mg-Si alloy
Si phase
collector plate model
hot rolling
title Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016
title_full Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016
title_fullStr Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016
title_full_unstemmed Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016
title_short Modeling the concurrent growth of inter- and intragranular Si precipitates during slow cooling of the alloy AA6016
title_sort modeling the concurrent growth of inter and intragranular si precipitates during slow cooling of the alloy aa6016
topic Al-Mg-Si alloy
Si phase
collector plate model
hot rolling
url https://www.tandfonline.com/doi/10.1080/26889277.2024.2316914
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