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Effect of Mg addition on microstructure and mechanical properties of AlSi12 alloy produced by high-pressure casting method

Samet Aksoy (Department of R&D Aydınlar, Spare Parts Industry Trade Inc., Konya, Türkiye)
Fikret Kabakcı (Department of Metallurgy Alaplı Vocational School, Zonguldak Bülent Ecevit University, Zonguldak, Türkiye)
Mustafa Acarer (Department of Metallurgical and Materials Engineering, Selcuk University, Konya, Türkiye)
Hayrettin Düzcükoğlu (Department of Mechanical Engineering, Selçuk University, Konya, Türkiye)
Erdem Ünüvar (Odesan Bilişim Electronics LLC, Konya, Türkiye)
Fehim Fındık (Department of Metallurgical and Materials Engineering, Sakarya University of Applied Sciences, Sakarya, Türkiye)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 30 September 2022

Issue publication date: 2 January 2023

67

Abstract

Purpose

Paper aims to an alloy development study was carried out to increase the mechanical properties of cylinder heads.

Design/methodology/approach

AlSi12 alloys are used to manufacture the compressor head cylinder by high-pressure casting for easy casting and superior properties. Therefore, 1.1%, 2.4% and 3.1% Mg were added to AlSi12. The microstructures of the produced samples were characterized by optical microscope, scanning electron microscopy, energy dispersive spectrometry and X-ray diffraction methods. Hardness and tensile tests as well as Charpy impact tests were performed. Wear tests were also carried out on the pin-on disc tester, and then the wear performance was examined on the tester, which simulates the actual operating condition.

Findings

AlSi12 has primary Si and eutectic Si in the Al matrix. However, alloys of Mg with AlSi12 have other intermetallics such as Mg2Si and ß-Fe, as well as primary Si and eutectic Si. Hardness and tensile strength as well as improved wear performance with increased Mg content.

Originality/value

In this study, wear performance test to simulate the operation of the cylinder head produced by high pressure casting from AlSi12 alloy moreover tensile test, hardness test and impact test were performed. Therefore, in this study, the wear performance of the compressor head produced by high-pressure casting method by adding three different amounts of Mg to AlSi12 alloy was investigated.

Keywords

Acknowledgements

This study was carried out as a master thesis by Samet Aksoy in the Graduate School of Natural and Applied Science of the University of Selcuk, Konya, Türkiye. Authors also thank to Yildiz Pul Company in Konya-Türkiye

Citation

Aksoy, S., Kabakcı, F., Acarer, M., Düzcükoğlu, H., Ünüvar, E. and Fındık, F. (2023), "Effect of Mg addition on microstructure and mechanical properties of AlSi12 alloy produced by high-pressure casting method", Industrial Lubrication and Tribology, Vol. 75 No. 1, pp. 27-35. https://doi.org/10.1108/ILT-10-2021-0410

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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