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

Effect of Mg addition on microstructure and mechanical properties of AlSi12 alloy produced by... Paper aims to an alloy development study was carried out to increase the mechanical properties of cylinder heads.Design/methodology/approachAlSi12 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.FindingsAlSi12 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/valueIn 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

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

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0036-8792
eISSN
0036-8792
DOI
10.1108/ilt-10-2021-0410
Publisher site
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Abstract

Paper aims to an alloy development study was carried out to increase the mechanical properties of cylinder heads.Design/methodology/approachAlSi12 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.FindingsAlSi12 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/valueIn 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.

Journal

Industrial Lubrication and Tribology – Emerald Publishing

Published: Jan 2, 2023

Keywords: Mechanical properties; Wear; Microstructure; Al-based alloys; AlSi12; High-pressure casting

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