Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys

An integrated precipitation and strengthening model, incorporating the effect of precipitate morphology on precipitation kinetics and yield strength, is developed based on a modified Kampmann–Wagner numerical (KWN) framework with a precipitate shape factor. The optimized model was used to predict th...

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Main Authors: Emre Cinkilic, Xinyan Yan, Alan A. Luo
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/10/1356
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author Emre Cinkilic
Xinyan Yan
Alan A. Luo
author_facet Emre Cinkilic
Xinyan Yan
Alan A. Luo
author_sort Emre Cinkilic
collection DOAJ
description An integrated precipitation and strengthening model, incorporating the effect of precipitate morphology on precipitation kinetics and yield strength, is developed based on a modified Kampmann–Wagner numerical (KWN) framework with a precipitate shape factor. The optimized model was used to predict the yield strength of Al-Si-Mg-Mn casting alloys produced by vacuum high pressure die casting at various aged (T6) conditions. The solid solution strengthening contribution of Mn, which is a common alloying element to avoid die soldering, was included in the model to increase the prediction accuracy. The experimental results and simulations show good agreement and the model is capable of reliably predicting yield strength of aluminum die castings after T6 heat treatment, providing a useful tool to tailor heat treatment for a variety of applications.
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spelling doaj.art-15210e8dc3de4b01891391322da6f26b2023-11-20T16:38:22ZengMDPI AGMetals2075-47012020-10-011010135610.3390/met10101356Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn AlloysEmre Cinkilic0Xinyan Yan1Alan A. Luo2Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USAAlcoa Technical Center; New Kensington, PA 15068, USADepartment of Materials Science and Engineering & Department of Integrated System Engineering, The Ohio State University, Columbus, OH 43210, USAAn integrated precipitation and strengthening model, incorporating the effect of precipitate morphology on precipitation kinetics and yield strength, is developed based on a modified Kampmann–Wagner numerical (KWN) framework with a precipitate shape factor. The optimized model was used to predict the yield strength of Al-Si-Mg-Mn casting alloys produced by vacuum high pressure die casting at various aged (T6) conditions. The solid solution strengthening contribution of Mn, which is a common alloying element to avoid die soldering, was included in the model to increase the prediction accuracy. The experimental results and simulations show good agreement and the model is capable of reliably predicting yield strength of aluminum die castings after T6 heat treatment, providing a useful tool to tailor heat treatment for a variety of applications.https://www.mdpi.com/2075-4701/10/10/1356precipitation hardeningKampmann–Wagner numerical (KWN) modelAl-Si-Mg-Mn casting alloysmicrostructure modeling
spellingShingle Emre Cinkilic
Xinyan Yan
Alan A. Luo
Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys
Metals
precipitation hardening
Kampmann–Wagner numerical (KWN) model
Al-Si-Mg-Mn casting alloys
microstructure modeling
title Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys
title_full Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys
title_fullStr Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys
title_full_unstemmed Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys
title_short Modeling Precipitation Hardening and Yield Strength in Cast Al-Si-Mg-Mn Alloys
title_sort modeling precipitation hardening and yield strength in cast al si mg mn alloys
topic precipitation hardening
Kampmann–Wagner numerical (KWN) model
Al-Si-Mg-Mn casting alloys
microstructure modeling
url https://www.mdpi.com/2075-4701/10/10/1356
work_keys_str_mv AT emrecinkilic modelingprecipitationhardeningandyieldstrengthincastalsimgmnalloys
AT xinyanyan modelingprecipitationhardeningandyieldstrengthincastalsimgmnalloys
AT alanaluo modelingprecipitationhardeningandyieldstrengthincastalsimgmnalloys