The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review

The excellent casting behavior and mechanical and corrosion properties of aluminum-silicon (Al-Si)-based alloys make them ideal for the manufacture of lightweight components with complex geometries. However, these properties depend directly on their microstructure, which, in its turn, is strongly af...

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Main Authors: Bruna Callegari, Tiago Nunes Lima, Rodrigo Santiago Coelho
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/13/7/1174
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author Bruna Callegari
Tiago Nunes Lima
Rodrigo Santiago Coelho
author_facet Bruna Callegari
Tiago Nunes Lima
Rodrigo Santiago Coelho
author_sort Bruna Callegari
collection DOAJ
description The excellent casting behavior and mechanical and corrosion properties of aluminum-silicon (Al-Si)-based alloys make them ideal for the manufacture of lightweight components with complex geometries. However, these properties depend directly on their microstructure, which, in its turn, is strongly affected by the composition of the alloy, among other factors. Several elements can be added to the material aiming to promote microstructural changes, e.g., grain refinement, optimization of phase morphology and distribution, and precipitation strengthening. Efforts are continuously put into such enhancements of cast Al alloys since they lead to quality improvements that allow for weight reduction and safety increase. Considering the technological relevance of the subject, this paper provides an overview of the research focused on the addition of alloying elements to these alloys, with a greater focus on Al-Si-based systems and the comprehension of the effects of these additions on their microstructure and properties.
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spelling doaj.art-8295759cdf3a4b2cbfeb032feb377ba62023-11-18T20:28:56ZengMDPI AGMetals2075-47012023-06-01137117410.3390/met13071174The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A ReviewBruna Callegari0Tiago Nunes Lima1Rodrigo Santiago Coelho2SENAI CIMATEC, Instituto SENAI de Inovação em Conformação e União de Materiais (CIMATEC ISI C&UM), Av. Orlando Gomes 1845, Salvador 41650-010, BrazilSENAI CIMATEC, Instituto SENAI de Inovação em Conformação e União de Materiais (CIMATEC ISI C&UM), Av. Orlando Gomes 1845, Salvador 41650-010, BrazilSENAI CIMATEC, Instituto SENAI de Inovação em Conformação e União de Materiais (CIMATEC ISI C&UM), Av. Orlando Gomes 1845, Salvador 41650-010, BrazilThe excellent casting behavior and mechanical and corrosion properties of aluminum-silicon (Al-Si)-based alloys make them ideal for the manufacture of lightweight components with complex geometries. However, these properties depend directly on their microstructure, which, in its turn, is strongly affected by the composition of the alloy, among other factors. Several elements can be added to the material aiming to promote microstructural changes, e.g., grain refinement, optimization of phase morphology and distribution, and precipitation strengthening. Efforts are continuously put into such enhancements of cast Al alloys since they lead to quality improvements that allow for weight reduction and safety increase. Considering the technological relevance of the subject, this paper provides an overview of the research focused on the addition of alloying elements to these alloys, with a greater focus on Al-Si-based systems and the comprehension of the effects of these additions on their microstructure and properties.https://www.mdpi.com/2075-4701/13/7/1174aluminum alloyscastingchemical compositionmicrostructureproperties
spellingShingle Bruna Callegari
Tiago Nunes Lima
Rodrigo Santiago Coelho
The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review
Metals
aluminum alloys
casting
chemical composition
microstructure
properties
title The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review
title_full The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review
title_fullStr The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review
title_full_unstemmed The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review
title_short The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review
title_sort influence of alloying elements on the microstructure and properties of al si based casting alloys a review
topic aluminum alloys
casting
chemical composition
microstructure
properties
url https://www.mdpi.com/2075-4701/13/7/1174
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