Improving structural, tribological and electrochemical properties of Ti6Al4V alloy with B-doped TiO2 thin films

Çelik A., Acar M. T., Yetim T., Kovacı H., Yetim A.

TRIBOLOGY INTERNATIONAL, cilt.146, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 146
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.triboint.2020.106210
  • Dergi Adı: TRIBOLOGY INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: TiO2, Ceramic coating, B-doping, Wear, Friction, Corrosion, BORON-NITRIDE NANOTUBES, PHOTOCATALYTIC ACTIVITY, STAINLESS-STEEL, SLIDING WEAR, CORROSION, SOL, TITANIUM, BIOCOMPATIBILITY, BEHAVIOR, TEMPERATURE
  • Atatürk Üniversitesi Adresli: Evet

Özet

B-doped TiO2 coatings with different B:Ti molar ratios were produced on Ti6Al4V alloy by a sol-gel dip-coating in order to improve tribological and electrochemical properties of Ti6Al4V. The properties of films were evaluated by XRD, XPS, SEM, surface tension-meter, tribotester and EIS. The highest roughness and hardness were obtained from B:Ti molar ratio of 2:1 TiO2 thin-film. TiO2 and B-doped TiO2 improved the wear resistance. While the mean CoF of Ti6Al4V was 0.39, TiO2 films reduced CoF significantly. B-doped TiO2 showed higher wear resistance than substrate and TiO2 film. Corrosion resistance was enhanced by TiO2 and the increasing B molar ratio provided improvement. The surface state changed after coatings. While TiO2 film showed hydrophobic behavior, B-doped all films exhibited hydrophilic characteristics.