Microstructure and mechanical properties of an additively manufactured AlSi10Mg based alloy

Buğrahan Atar; Eren Üyüklü; Paşa Yayla

doi:10.1515/mt-2022-0334

Article

Microstructure and mechanical properties of an additively manufactured AlSi10Mg based alloy

Buğrahan Atar
Buğrahan Atar is a graduate student at Marmara University, Istanbul – Turkey. He had his BSc from the same university. He works on materials testing and characterization.
, Eren Üyüklü
Eren Üyüklü is a graduate student at Marmara University, Istanbul – Turkey. He had his BSc from the same university. He works on materials testing and characterization.
and Paşa Yayla
Paşa Yayla is a professor in the Mechanical Engineering Department of Marmara University, Istanbul, Turkey. He had his BSc and MSc from Istanbul Technical University, Turkey, and his PhD from Imperial College, London, UK. His main research interests are fracture mechanics, mechanical properties, and failure analysis.

Published/Copyright: May 23, 2023

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From the journal Materials Testing Volume 65 Issue 6

Abstract

In this study, the mechanical properties, fractography, and microstructure relationship of AlSi10Mg produced by laser powder bed fusion were established. Laser powder bed fusion is an additive manufacturing method that is an innovative technique. Since additive manufacturing is a new technique, utilizing materials requires studies investigating mechanical properties, fractography, and microstructure. This is vital because these characteristics are used before choosing the materials to manufacture the desired parts. The tensile, the Charpy impact, the hardness, and the density tests were applied to identify the mechanical properties of AlSi10Mg specimens. After that, the fractographic features and microstructure of the material were observed via an optical microscope and a scanning electron microscope. Finally, these results were related to each other. The results of tensile, the Charpy impact and fractography revealed that the laser powder bed additively manufactured AlSi10Mg alloy exhibited ductile–brittle type failure behaviour. As-built additively manufactured AlSi10Mg demonstrated higher yield strength, ultimate tensile strength, and microhardness but less density than as-built cast-produced AlSi10Mg.

Keywords: additive manufacturing; AlSi10Mg alloy; fractography; mechanical properties; microstructure

Corresponding author: Paşa Yayla, Engineering Faculty – Mechanical Engineering Department, Marmara Universitesi, Maltepe, Istanbul, Türkiye, E-mail: pasa.yayla@marmara.edu.tr

Funding source: TUSAŞ / LIFT-UP

Award Identifier / Grant number: Industry Focused Undergraduate Study Completion Pr

Funding source: Türkiye Bilimsel ve Teknolojik Araştırma Kurumu

Award Identifier / Grant number: TUBITAK 2209-B

About the authors

Buğrahan Atar

Buğrahan Atar is a graduate student at Marmara University, Istanbul – Turkey. He had his BSc from the same university. He works on materials testing and characterization.

Eren Üyüklü

Eren Üyüklü is a graduate student at Marmara University, Istanbul – Turkey. He had his BSc from the same university. He works on materials testing and characterization.

Paşa Yayla

Paşa Yayla is a professor in the Mechanical Engineering Department of Marmara University, Istanbul, Turkey. He had his BSc and MSc from Istanbul Technical University, Turkey, and his PhD from Imperial College, London, UK. His main research interests are fracture mechanics, mechanical properties, and failure analysis.

Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This study was supported by TUBITAK 2209-B University Students’ Industry-Oriented Research Projects Support Program and the Turkish Aerospace Industry Lift-up Industry Focused Undergraduate Study Completion Projects Program.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2023-05-23

Published in Print: 2023-06-27

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Articles in the same Issue

https://doi.org/10.1515/mt-2022-0334

Keywords for this article

additive manufacturing; AlSi10Mg alloy; fractography; mechanical properties; microstructure