Controlling the surface properties of Ti-6Al-4V biomedical alloy by adjusting laser surface processing parameters


Ozan S.

Transactions of the Institute of Metal Finishing, vol.103, no.3, pp.145-153, 2025 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 103 Issue: 3
  • Publication Date: 2025
  • Doi Number: 10.1080/00202967.2025.2494369
  • Journal Name: Transactions of the Institute of Metal Finishing
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.145-153
  • Keywords: biomedical, contact angle, frequency, implant surface, laser surface texturing, pulse width, surface roughness, Ti-6Al-4V alloy
  • Yozgat Bozok University Affiliated: Yes

Abstract

In this study, the wettability and surface roughness characteristics of Ti-6Al-4V alloy samples processed by employing the laser surface texturing technique were examined. The goal was to find out how surface roughness and contact angle are affected by laser processing parameters (pulse width and frequency). The surface roughness results showed that mean roughness decreased as the pulse width increased. The lowest surface roughness value was obtained at 300 ns pulse width and 300 kHz frequency, and the highest roughness was obtained at 50 ns pulse width and 200 kHz frequency. The wettability analysis revealed that all surfaces exhibited hydrophilic characteristics; however, the specimens treated with a 100 ns pulse width at a frequency of 100 kHz, as well as those with a 300 ns pulse width at 50 kHz, exhibited super-hydrophilic properties. Laser surface texturing parameters (frequency and pulse width) were revealed to improve biomedical implant surface characteristics.