Influence of Coatings on the Durability and Friction of Clutch Systems in Motorsport

Аннотация

The article presents a comprehensive SUBMITED 28 July 2025 ACCEPTED 09 August 2025 analysis of the influence of surface coatings and PUBLISHED 21 August 2025 microtextures on the frictional characteristics and VOLUME Vol.07 Issue 08 2025 durability of clutch components in professional motorsport applications. The study is based on an CITATION Dmytro Dekanozishvili. (2025). Influence of Coatings on the Durability and interdisciplinary approach that integrates engineering Friction of Clutch Systems in Motorsport. The American Journal of Interdisciplinary Innovations and Research, 7(8), 74–80. tribology, materials science, and applied mechanics of https://doi.org/10.37547/tajiir/Volume07Issue08-08 high-load transmission systems. Particular attention is given to content and comparative analysis of both COPYRIGHT domestic and international sources describing the © 2025 Original content from this work may be used under the terms of the creative commons attributes 4.0 License. behavior of DLC coatings, PTFE-based composites, and iron-based laser claddings under various friction modes, thermal loads, and cyclic stresses. Critical differences between coatings are identified in terms of friction coefficient, wear volume, thermal stability, and adhesion strength to the substrate. Based on empirical data, a typology of coating applicability is proposed for different motorsport disciplines, ranging from circuit racing to rally and drag racing. Summary tables are presented to reflect the operational properties of coatings at temperatures up to 250 °C and under boundary lubrication conditions. The necessity of context-specific coating selection is substantiated, taking into account track configuration, weight constraints, and cooling requirements. Special emphasis is placed on the role of microtextures in heat distribution and contact stress regulation within the clutch. This article will be of interest to design engineers, motorsport specialists, friction system developers, and surface engineering researchers involved in the design of transmission components for extreme operating conditions. Keywords: clutch, motorsport, coating, friction, wear, DLC, PTFE, laser cladding, microtexture, thermal The American Journal of Interdisciplinary Innovations and Research 74 https://www.theamericanjournals.com/index.php/tajiir The American Journal of Interdisciplinary Innovations and Research stability. tribological characteristics of racing-car clutches, to identify patterns of friction-coefficient changes and