Tribological Characterization and Optimization of Aluminum-Based Composites for Powertrain Systems

A Special Issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: 5 December 2026 | Viewed by 1476

Editors


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Guest Editor
Faculty of Engineering University of Kragujevac, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Serbia
Interests: mechanical engineering; motor vehicles and engines; alternative fuels; tribology; maintenance; recycling

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Guest Editor
Faculty of Engineering University of Kragujevac, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Serbia
Interests: mechanical engineering; tribology; optimization; micro/nano-composites; Taguchi-Grey; artificial neural networks
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Special Issue Information

Dear Colleagues,

Due to their low density, high specific strength, and enhanced tribological performance, aluminum-based composites are promising materials for powertrain applications, particularly in the automotive sector. These materials are increasingly used in components such as pistons, cylinder liners, gearboxes, and bearings, where friction, wear resistance, and thermal stability are critical.

Reducing mechanical losses in engines and reciprocating compressors through the application of advanced tribological materials and coatings contribute to lower fuel consumption and, consequently, reduced emissions of harmful combustion products.

Aluminum matrix composites reinforced with ceramic particles (e.g., SiC, B₄C, Al₂O₃, TiC), solid lubricants (e.g., Gr, MoS₂) and hybrid reinforcements are the focus of growing research efforts aimed at improving mechanical and tribological properties. In addition, modern optimization techniques including multi-objective optimization, artificial intelligence, and advanced statistical methods are increasingly employed to optimize processing parameters and enhance tribological performance.

This Special Issue aims to gather high-quality contributions addressing experimental, numerical, and optimization approaches related to improving the tribological behavior, microstructure, and overall performance of aluminum-based composites for powertrain systems.

Dr. Saša T. Milojević
Dr. Slavica Miladinovic
Guest Editors

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • aluminum matrix composites
  • emissions
  • engine components
  • friction and wear
  • lubrication
  • mechanical losses
  • powertrain systems
  • tribology

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Published Papers (1 paper)

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Review

23 pages, 13829 KB  
Review
Application of Al–Si Alloys in Internal Combustion Engines
by Saša Milojević, Slavica Miladinović, Sandra Gajević, Stefan Čukić and Blaža Stojanović
Lubricants 2026, 14(7), 277; https://doi.org/10.3390/lubricants14070277 - 21 Jul 2026
Cited by 2 | Viewed by 960
Abstract
The use of aluminium alloys in internal combustion engines is an effective strategy for increasing energy efficiency, reducing component mass, and lowering harmful gas emissions. This paper analyses different types of Al–Si alloys (hypoeutectic, eutectic, and hypereutectic) in the context of their use [...] Read more.
The use of aluminium alloys in internal combustion engines is an effective strategy for increasing energy efficiency, reducing component mass, and lowering harmful gas emissions. This paper analyses different types of Al–Si alloys (hypoeutectic, eutectic, and hypereutectic) in the context of their use in the production of engine blocks, pistons, and cylinder liners. Special attention is given to the tribological challenges of using aluminium, such as increased wear and lower strength compared to traditional materials such as cast iron. Modern methods for improving wear resistance are discussed, including alloying, the application of solid lubricants and protective coatings (Ni–SiC, Al2O3, MoS2, etc.), and advanced surface engineering technologies such as PTWA, HVOF, and laser alloying techniques. This paper also presents practical examples of industrial applications, highlighting their essential role in the development of lightweight, high–performance internal combustion engines. This review highlights that the combination of optimized alloy composition and advanced surface engineering technologies represents the most effective approach for enhancing the durability and tribological performance of lightweight engine components. Full article
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