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Materials 2018, 11(1), 42; https://doi.org/10.3390/ma11010042

Aluminum Matrix Composite (AlSi7Mg2Sr0.03/SiCp) Pistons Obtained by Mechanical Mixing Method

Faculty of Materials Engineering and Metallurgy, Silesian University of Technology, Krasińskiego 8, PL 40-019 Katowice, Poland
Received: 22 November 2017 / Revised: 14 December 2017 / Accepted: 24 December 2017 / Published: 28 December 2017
(This article belongs to the Section Advanced Composites)
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Abstract

Metal matrix composites are undoubtedly a group of advanced engineering materials. Compared to unreinforced matrix material, they are characterized by increased strength, greater stiffness, increased wear resistance, better mechanical properties and dimensional stability at elevated temperatures as well as lower density. Due to its very favorable tribological properties for many years research has been conducted on the application of MMC in friction node. The article presents important technological aspects related to the production and properties of composite pistons. Under industrial conditions, a composite suspension (AlSi7Mg2Sr0.03/SiCp 10 vol %) was prepared to allow casting of the semi-finished pistons series. Machining parameters of the working surfaces of the piston were selected on the basis of the turning test made on PCD, PCNM and uncoated carbide tools. The tribological properties of the composite pistons were determined on the basis of the pin-on-disc and the abrasion wear. The scuffing tests carried out under real operating conditions have confirmed the possibility of using composite pistons in air compressors. View Full-Text
Keywords: metal-matrix composites (MMCs); casting; machining; wear properties metal-matrix composites (MMCs); casting; machining; wear properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Dyzia, M. Aluminum Matrix Composite (AlSi7Mg2Sr0.03/SiCp) Pistons Obtained by Mechanical Mixing Method. Materials 2018, 11, 42.

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