Investigation of mechanical properties of AlSi3Cr alloy

Marialaura Tocci; Annalisa Pola; Lorenzo Montesano; G. Marina La Vecchia; Mattia Merlin; Gian Luca Garagnani

doi:10.3221/IGF-ESIS.42.35

Investigation of mechanical properties of AlSi3Cr alloy

Authors

Marialaura Tocci Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123, Brescia, Italy http://orcid.org/0000-0002-7515-0615
Annalisa Pola Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123, Brescia, Italy http://orcid.org/0000-0002-0722-6518
Lorenzo Montesano Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123, Brescia, Italy http://orcid.org/0000-0001-5465-6265
G. Marina La Vecchia Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123, Brescia, Italy http://orcid.org/0000-0001-5919-0396
Mattia Merlin Department of Engineering (DE), University of Ferrara, Via Saragat 1, 44122, Ferrara, Italy http://orcid.org/0000-0003-4685-1073
Gian Luca Garagnani Department of Engineering (DE), University of Ferrara, Via Saragat 1, 44122, Ferrara, Italy http://orcid.org/0000-0002-5403-0868

DOI:

https://doi.org/10.3221/IGF-ESIS.42.35

Keywords:

Al-Si-Mg alloys, Tensile test, Impact test, Fracture surface

Abstract

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.

Downloads

Download data is not yet available.

Published

29-09-2017

Issue

Vol. 11 No. 42 (2017): October 2017

Section

Miscellanea

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

Open Access Statement

Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit and providing a link to the license and indicating if changes were made.

How to Cite

Investigation of mechanical properties of AlSi3Cr alloy. (2017). Frattura Ed Integrità Strutturale, 11(42), Pages 337-351. https://doi.org/10.3221/IGF-ESIS.42.35