Enhancing biomedical applications of Ti–6Al–4V alloys: The role of boron nitride and titanium diboride coatings in mechanical and radiation shielding performance

Bilen M.

Radiation Physics and Chemistry, cilt.230, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 230
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.radphyschem.2025.112597
  • Dergi Adı: Radiation Physics and Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Anahtar Kelimeler: Biomedical, BN, Radiation attenuation, Radiation resistance, TiB2, Ti–6Al–4V alloy
  • Gazi Üniversitesi Adresli: Evet

Özet

This study investigates the enhancement of mechanical and radiation attenuation properties of Ti–6Al–4V alloy through surface modification using Boron Nitride (BN) and Titanium Diboride (TiB2) coatings. The samples were produced using Selective Laser Melting (SLM) and coated via cathodic arc physical vapor deposition (PVD). SEM analyses confirmed the uniform distribution of coatings and their compatibility with theoretical thickness calculations. Mechanical tests revealed that the coatings improved hardness and wear resistance, with BN providing a lower friction coefficient and TiB2 exhibiting superior wear resistance. Radiation attenuation tests showed that TiB2 coatings significantly enhanced the linear attenuation coefficient (LAC) at 1.173 MeV, while BN coatings demonstrated superiority in mass attenuation coefficient (MAC). Improvements were also observed in HVL, TVL, and MFP parameters. These findings suggest that BN and TiB2 coatings can optimize the mechanical durability and radiation resistance of Ti–6Al–4V alloy for biomedical applications.