Interface Damage in Titanium Dental Implant Due to Tribocorrosion: The Role of Mastication Frequencies
| Autor: | Mathew T. Mathew, Isabella da Silva Viera Marques, Peter K. Rossman, Christos G. Takoudis, Maria F. Alfaro, Anirudh Dube, Cortino Sukotjo, Tolou Shokuhfar |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Scanning electron microscope 020209 energy Mechanical Engineering Materials Science (miscellaneous) Tribocorrosion Metals and Alloys Oxide chemistry.chemical_element Titanium alloy Fretting 02 engineering and technology Corrosion chemistry.chemical_compound 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Mechanics of Materials 0202 electrical engineering electronic engineering information engineering Materials Chemistry Composite material Tribometer Titanium |
| Zdroj: | Journal of Bio- and Tribo-Corrosion. 5 |
| ISSN: | 2198-4239 2198-4220 |
| DOI: | 10.1007/s40735-019-0273-1 |
| Popis: | The aim of this study was to investigate the influence of fretting motions on the depassivation–repassivation processes occurring in Ti6Al4V alloy, at an in vitro simulated oral environment. Ti6Al4V discs were subjected to fretting–corrosion using a pin-on-disc tribometer. Specimens underwent 2000 motion cycles, with ± 500 µm of fretting stroke, and 8 N of load at frequencies of 1, 2, and 4 Hz. Surface characterization was performed using white-light interferometry and scanning electron microscope. Total mass loss (Kwc), and mass loss due to wear (Kw) and corrosion (Kc) were calculated. Lower potentials were reached at a frequency of 4 Hz. The coefficient of friction was statistically higher (p > 0.05) under 1 Hz (μ = 0.66) as compared to that of 2 and 4 Hz (μ = 0.53; μ = 0.51). Kwc was significantly higher (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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