Journal
INTERNATIONAL JOURNAL OF AUTOMOTIVE AND MECHANICAL ENGINEERING
Volume 20, Issue 1, Pages 10165-10174Publisher
UNIV MALAYSIA PAHANG
DOI: 10.15282/ijame.20.1.2023.02.0787
Keywords
Laser surface texturing; Ti6Al4V; COF; Wear rate
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The aim of this study was to investigate the effect of laser-textured surfaces on enhancing the wear performance of Ti6Al4V. Laser texturing was applied to the sample with preset parameter values. The results showed that the laser-textured surface of Ti6Al4V exhibited a significant improvement in wear rate compared to the original surface.
- The need for titanium and its alloys has led to a significant increase in commercial manufacturing, although this material's poor tribological qualities have been a drawback. The present study was to determine the effect of laser-textured surfaces to enhance Ti6Al4V surface wear performance. The sample underwent laser texturing based on pre-set parameter values at 15 W power at a laser scanning speed of 200 mm/s with a frequency of 50 kHz. The surface morphological and topological profile of laser-textured Ti6Al4V was characterized with also the surface microhardness. A comparative appraisal of wear rate (WR) and coefficient of friction (COF) for related samples of as-received Ti6Al4V and laser-textured Ti6Al4V was performed under dry and oil sliding conditions. The results revealed that the formation of oxidation due to the frictional force and plastic displacement plays a role of abrasive to the laser-textured surface and may result in increasing the COF. The wear rate of the laser-textured surface of Ti6Al4V exhibited 88.31% improvement compared to the as-received Ti6Al4V in the dry sliding wear test. It was proved that Ti6Al4V could benefit from LST to gain effectively enhanced wear performance.
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