Surface characterization of oxides grown on the Ti–13Nb–13Zr alloy and their corrosion protection |
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| Affiliation: | 1. Department of Physics and Information Technology, Baoji University of Arts and Sciences, Baoji 721016, China;2. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China;3. College of Mechanical and Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, China;2. The Collaborative Innovation Center for Advanced Aero-Engine (CICAAE), Beijing University of Aeronautics and Astronautics, Beijing, China;3. Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beijing University of Aeronautics and Astronautics, Beijing, China;4. Baosteel Research Institute, Baoshan Iron and Steel Co., Shanghai, China;5. College of Materials and Metallurgy, Guizhou University, Guiyang, China;6. Fracture and Reliability Research Institute, School of Engineering, Tohoku University, Sendai, Japan;1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China;2. Surface Coatings Technology for Metals and Materials Research Unit, Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand;1. Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha 410083, PR China;2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China;1. Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil;2. Laboratory of Technological Plasmas, Engineering College, Univ Estadual Paulista (UNESP), Av Três de Março, 511, Sorocaba, São Paulo 18087-180, Brazil;3. Department of Restorative Dentistry, University of Illinois at Chicago, College of Dentistry, 801 S Paulina Ave, Chicago, IL 60612, USA;4. Department of Physiological Science, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil;5. Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison St., Chicago, IL 60612, USA |
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| Abstract: | Oxide films were formed on the biocompatible alloy Ti–13Nb–13Zr in a phosphate buffer at open-circuit potential (Eoc), potentiodynamically up to 8 V, or by micro-arc oxidation (MAO) at 300 V. Their electrochemical properties were assessed in a phosphate buffer saline solution (PBS). EIS and SEM results showed that the Eoc and potentiodynamically formed oxide films were compact and behave as a monolayer, while the MAO oxide was a bilayered film (compact inner and porous outer layers). Open-circuit potential and EIS resistance values indicated that the MAO oxide provides the best corrosion protection for the alloy in PBS. |
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| Keywords: | A Alloy B EIS B SEM C Anodic films C Oxide coatings C Passive films |
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