Investigation of mechanical properties of AlSi3Cr alloy

In the present paper, microstructural and mechanical properties of an innovative AlSi3Mg alloy were studied. Particularly, the effect of the addition of Cr and Mn on tensile strength and impact toughness was evaluated. In fact, the presence of these elements leads to the formation of an intermetalli...

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Main Authors: M. Tocci, A. Pola, L. Montesano, GM. La Vecchia, M. Merlin, GL. Garagnani
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2017-10-01
Series:Fracture and Structural Integrity
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Online Access:http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_35.pdf
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author M. Tocci
A. Pola
L. Montesano
GM. La Vecchia
M. Merlin
GL. Garagnani
author_facet M. Tocci
A. Pola
L. Montesano
GM. La Vecchia
M. Merlin
GL. Garagnani
author_sort M. Tocci
collection DOAJ
description In the present paper, microstructural and mechanical properties of an innovative AlSi3Mg alloy were studied. Particularly, the effect of the addition of Cr and Mn on tensile strength and impact toughness was evaluated. In fact, the presence of these elements leads to the formation of an intermetallic phase with a globular or polyhedral morphology. It was therefore investigated the role played by Cr-Mn containing particles in the failure mechanism and the influence of the heat treatment parameters. Moreover, tensile and impact tests were performed on A356 samples in T6 condition, whose results were compared with the performance of the innovative alloy. Considering the static properties, the innovative alloy showed remarkable values of tensile strength, while ductility was improved only after heat treatment optimization. Poor impact toughness values were measured and the microstructural analysis confirmed the presence of coarse intermetallics, acting as crack initiation and propagation particles, on the fracture surfaces
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publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-ea11a09ffe5045a48e36b6d9a5aa39162025-08-20T02:51:42ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-10-01114233735110.3221/IGF-ESIS.42.3510.3221/IGF-ESIS.42.35Investigation of mechanical properties of AlSi3Cr alloyM. TocciA. PolaL. MontesanoGM. La VecchiaM. MerlinGL. GaragnaniIn the present paper, microstructural and mechanical properties of an innovative AlSi3Mg alloy were studied. Particularly, the effect of the addition of Cr and Mn on tensile strength and impact toughness was evaluated. In fact, the presence of these elements leads to the formation of an intermetallic phase with a globular or polyhedral morphology. It was therefore investigated the role played by Cr-Mn containing particles in the failure mechanism and the influence of the heat treatment parameters. Moreover, tensile and impact tests were performed on A356 samples in T6 condition, whose results were compared with the performance of the innovative alloy. Considering the static properties, the innovative alloy showed remarkable values of tensile strength, while ductility was improved only after heat treatment optimization. Poor impact toughness values were measured and the microstructural analysis confirmed the presence of coarse intermetallics, acting as crack initiation and propagation particles, on the fracture surfaceshttp://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_35.pdfAl-Si-Mg alloysTensile testImpact testFracture surface
spellingShingle M. Tocci
A. Pola
L. Montesano
GM. La Vecchia
M. Merlin
GL. Garagnani
Investigation of mechanical properties of AlSi3Cr alloy
Fracture and Structural Integrity
Al-Si-Mg alloys
Tensile test
Impact test
Fracture surface
title Investigation of mechanical properties of AlSi3Cr alloy
title_full Investigation of mechanical properties of AlSi3Cr alloy
title_fullStr Investigation of mechanical properties of AlSi3Cr alloy
title_full_unstemmed Investigation of mechanical properties of AlSi3Cr alloy
title_short Investigation of mechanical properties of AlSi3Cr alloy
title_sort investigation of mechanical properties of alsi3cr alloy
topic Al-Si-Mg alloys
Tensile test
Impact test
Fracture surface
url http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_35.pdf
work_keys_str_mv AT mtocci investigationofmechanicalpropertiesofalsi3cralloy
AT apola investigationofmechanicalpropertiesofalsi3cralloy
AT lmontesano investigationofmechanicalpropertiesofalsi3cralloy
AT gmlavecchia investigationofmechanicalpropertiesofalsi3cralloy
AT mmerlin investigationofmechanicalpropertiesofalsi3cralloy
AT glgaragnani investigationofmechanicalpropertiesofalsi3cralloy