Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process

The effects of the thixoforming and the precipitation hardening heat treatment on the microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by the strain-induced melt activation (SIMA) process have been investigated. According to previous researches of authors, new introduce...

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Autores principales:	S.G. Shabestari, M. Abdi, S. Naghdali
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Al-10.5Si–3Cu-0.2Mg alloy SIMA Thixoforming Globular microstructure Precipitation hardening Mechanical properties Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/11153907b44c4851b4574f9954025fdb
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spelling	oai:doaj.org-article:11153907b44c4851b4574f9954025fdb2021-11-10T04:27:44ZEffect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process2238-785410.1016/j.jmrt.2021.10.086https://doaj.org/article/11153907b44c4851b4574f9954025fdb2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421012229https://doaj.org/toc/2238-7854The effects of the thixoforming and the precipitation hardening heat treatment on the microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by the strain-induced melt activation (SIMA) process have been investigated. According to previous researches of authors, new introduced alloy has superior mechanical properties in addition to good response to aging process compared with the casting aluminum alloys. The results of the image analysis showed that by increasing the deformation from 10% to 20% and the time of semi-solid heat treatment from 10 to 20 min, the best globular structure of α(Al) grains with the grain size and shape factor of 65 μm and 0.81 were obtained at 15 min for 20% pre-deformation, respectively. The thixoforming process increased the ultimate tensile strength of the alloy about 29%, the yield strength about 37% and the elongation about 6%, compared to the as cast condition. The 20% pre-deformed sample experienced precipitation hardening heat treatment in addition to thixoforming had the best mechanical properties having UTS, YS, elongation and hardness of 423 MPa, 331 MPa, 4.41%, and 144.24 BHN, respectively. Thixoforming plus precipitation hardening is an effective procedure to produce a particular microstructure in Al–Si–Cu–Mg system exhibiting the excellent castability and high mechanical properties.S.G. ShabestariM. AbdiS. NaghdaliElsevierarticleAl-10.5Si–3Cu-0.2Mg alloySIMAThixoformingGlobular microstructurePrecipitation hardeningMechanical propertiesMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 4981-4992 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Al-10.5Si–3Cu-0.2Mg alloy SIMA Thixoforming Globular microstructure Precipitation hardening Mechanical properties Mining engineering. Metallurgy TN1-997
spellingShingle	Al-10.5Si–3Cu-0.2Mg alloy SIMA Thixoforming Globular microstructure Precipitation hardening Mechanical properties Mining engineering. Metallurgy TN1-997 S.G. Shabestari M. Abdi S. Naghdali Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process
description	The effects of the thixoforming and the precipitation hardening heat treatment on the microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by the strain-induced melt activation (SIMA) process have been investigated. According to previous researches of authors, new introduced alloy has superior mechanical properties in addition to good response to aging process compared with the casting aluminum alloys. The results of the image analysis showed that by increasing the deformation from 10% to 20% and the time of semi-solid heat treatment from 10 to 20 min, the best globular structure of α(Al) grains with the grain size and shape factor of 65 μm and 0.81 were obtained at 15 min for 20% pre-deformation, respectively. The thixoforming process increased the ultimate tensile strength of the alloy about 29%, the yield strength about 37% and the elongation about 6%, compared to the as cast condition. The 20% pre-deformed sample experienced precipitation hardening heat treatment in addition to thixoforming had the best mechanical properties having UTS, YS, elongation and hardness of 423 MPa, 331 MPa, 4.41%, and 144.24 BHN, respectively. Thixoforming plus precipitation hardening is an effective procedure to produce a particular microstructure in Al–Si–Cu–Mg system exhibiting the excellent castability and high mechanical properties.
format	article
author	S.G. Shabestari M. Abdi S. Naghdali
author_facet	S.G. Shabestari M. Abdi S. Naghdali
author_sort	S.G. Shabestari
title	Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process
title_short	Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process
title_full	Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process
title_fullStr	Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process
title_full_unstemmed	Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process
title_sort	effect of thixoforming and precipitation hardening on microstructure and mechanical properties of al-10.5si–3cu-0.2mg alloy produced by strain induced melt activation process
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/11153907b44c4851b4574f9954025fdb
work_keys_str_mv	AT sgshabestari effectofthixoformingandprecipitationhardeningonmicrostructureandmechanicalpropertiesofal105si3cu02mgalloyproducedbystraininducedmeltactivationprocess AT mabdi effectofthixoformingandprecipitationhardeningonmicrostructureandmechanicalpropertiesofal105si3cu02mgalloyproducedbystraininducedmeltactivationprocess AT snaghdali effectofthixoformingandprecipitationhardeningonmicrostructureandmechanicalpropertiesofal105si3cu02mgalloyproducedbystraininducedmeltactivationprocess
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Effect of thixoforming and precipitation hardening on microstructure and mechanical properties of Al-10.5Si–3Cu-0.2Mg alloy produced by strain induced melt activation process

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