Effect of bilayer numbers on structural, mechanical, tribological and corrosion properties of TiO2–SiO2 multilayer film-coated β-type Ti45Nb alloys

Çomaklı O., Yazıcı M., Demir M., Yetim A. F., ÇELİK A.

Ceramics International, cilt.49, sa.2, ss.3007-3015, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 2
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.ceramint.2022.09.285
  • Dergi Adı: Ceramics International
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.3007-3015
  • Anahtar Kelimeler: TiNb45, RF magnetron Sputtering, TiO2-SiO2 multilayer coating, Wear, Corrosion, TIALN MONOLAYERS, CERAMIC FILMS, COATINGS, BEHAVIOR, TITANIUM, WEAR, MICROSTRUCTURE, OXIDATION, SIO2, RESISTANCE
  • Atatürk Üniversitesi Adresli: Evet

Özet

© 2022 Elsevier Ltd and Techna Group S.r.l.Protective films with excellent tribological performance and good corrosion resistance are needed in general because titanium implants are used in aggressive environments and always suffer from severe wear and corrosion. In this study, TiO2–SiO2 multilayer films were deposited with different numbers of bilayers (2, 4, and 8) on β-type Ti45Nb alloy substrates by physical vapour deposition. The influence of number of bilayers on microstructure, wettability, mechanical features, tribological performance and electrochemical behaviour of TiO2–SiO2 multilayer films were comparatively observed via XRD, XPS, SEM, AFM, nanoindentation tester, contact angle measurement system, reciprocating tribo-tester, and electrochemical corrosion media. The surface hardness, wear and corrosion resistance values of multilayer film-coated substrates were higher than the untreated substrate values. These properties and adhesion resistance and hydrophobicity of coated samples also increased with increase in number of bilayers due to the smaller grain size, increased layered interfaces and high structural density.