Title: Effect of laser power on wear characteristics of Ti-6A-4V alloy fabricated by selective laser melting

Authors: Ehsan Rahimi; Hoorshad Mortezaei-Semnani; Sina Taheri-Neyestanaki; Omid Ashkani; Mahsa Bayat-Hojati

Addresses: Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran 1477893855, Iran ' Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran 1477893855, Iran ' Department of Mechanical Engineering, Islamic Azad University, Science and Research Branch, Tehran 1477893855, Iran ' Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran 1477893855, Iran ' Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran 1477893855, Iran

Abstract: Selective laser melting technology is one of the suitable choices for manufacturing parts in the future. In the present study, the effect of laser power on the Tribological properties of titanium alloy was investigated. The results showed that with increasing laser power, the hardness of the alloy increases by 5.2% due to microstructural changes, but on the other hand, the wear behaviour of the alloy decreases with increasing laser power due to reasons such as unstable wear behaviour, microstructural changes, and the weakness of the formed oxide layer. It should be noted that the surface roughness of the prototype can also affect the wear resistance, and increasing the laser power increased the surface roughness as well as the wear rate.

Keywords: selective laser melting; SLM; laser power; wear behaviour.

DOI: 10.1504/IJAT.2025.154560

International Journal of Abrasive Technology, 2025 Vol.13 No.1, pp.24 - 33

Received: 25 Mar 2025
Accepted: 18 May 2025
Published online: 06 Jul 2026 *

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