Surface Friction Behaviour of Anodized Commercially Pure Titanium Screw Assemblies
| Autor: | Dirk Johan van Vuuren, Rudolph F. Laubscher |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Anodizing 020209 energy medicine.medical_treatment Screw Metallurgy chemistry.chemical_element 02 engineering and technology Friction coefficient Hardness Fixation (surgical) Titanium Grade 4 chemistry Ultimate tensile strength 0202 electrical engineering electronic engineering information engineering medicine General Earth and Planetary Sciences Surface modification Anodization Dental implant Abutment (dentistry) General Environmental Science Titanium |
| Zdroj: | Procedia CIRP. 45:251-254 |
| ISSN: | 2212-8271 |
| DOI: | 10.1016/j.procir.2016.02.332 |
| Popis: | Dental implant abutment fixation by screw requires a prescribed preload (tensile screw load) for structural and implant performance purposes. This paper investigates the effect of surface modification on the apparent frictional behaviour of commercially pure Grade 4 titanium bolt assemblies by anodizing. 4 mm screws are anodized at various anodizing voltages to control the oxide layer thickness. Fixation torque is measured along with the corresponding tensile load in the screw and used to determine the dynamic surface friction coefficient for fastening and the static surface friction coefficient for untightening. Surface hardness is measured and linked to the frictional behaviour. The reduction in the apparent frictional behaviour are presented and discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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