Title
Coupled Effect of Laser Textured Surfaces and Lubricant Additives in Enhancing Titanium Alloy Tribological Performance
Authors
[ 1 ] Instytut Technologii Mechanicznej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee
Scientific discipline (Law 2.0)
Year of publication
2025
Chapter type
chapter in monograph / paper
Publication language
english
Abstract
EN Titanium alloys are widely used in biomedical and industrial applications due to their excellent mechanical properties and biocompatibility. However, their poor tribological performance, characterized by high friction and low wear resistance, limits their reliability. This study explores the synergistic effect of laser surface texturing (LST) and lubricant additives in enhancing the tribological properties of commercially pure titanium Grade 3. Using femtosecond laser processing, periodic microstructures were introduced to the titanium surface, significantly improving lubricant retention. Tribological tests, conducted under dry and lubricated conditions with additives such as graphite, hexagonal boron nitride (hBN), copper, and titanium dioxide, revealed a notable reduction in the coefficient of friction (COF) and wear . Graphite and hBN demonstrated the highest coupled effect with LST, reducing COF by up to 75% and wear by 51%. The results indicate that the effectiveness of LST depends on the compatibility of lubricant additives with surface microstructures. While LST improves lubricant retention, the additive type and particle size significantly influence tribological performance. The observed coupled effect between laser texturing and lubricant additives confirms that properly designed surface textures act as reservoirs for lubricants, optimizing their distribution and stability, which leads to a more effective reduction in friction and wear. A preliminary model has been developed to describe the tribological interactions between surface texturing and lubricant additives. This study provides insights into optimizing LST parameters and lubricant formulations, offering a promising strategy to enhance the durability of titanium components in industrial and biomedical applications.
Date of online publication
10.06.2025
Pages (from - to)
368 - 379
Ministry points / chapter
20
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