Influence of surface structures on torque of VT6 alloy cortical screws

Autor: A A Orlov, S V Skvortsova, S M Sarychev, V S Spector
Rok vydání: 2020
Předmět:
Zdroj: IOP Conference Series: Materials Science and Engineering. 971:032030
ISSN: 1757-899X
1757-8981
DOI: 10.1088/1757-899x/971/3/032030
Popis: The paper investigated the effect of the surface structure of VT6 alloy cortical screws after various modes of vacuum ion-plasma treatment on the magnitude of the torque when they are screwed and twisted into the threaded holes of titanium plates for bone osteosynthesis. It was shown that nitriding of the screw heads increases the surface hardness by 2 times, and the formation of the nitride layer-by 3 times. It was found that the maximum decrease in torque when unscrewing is observed for nitride coated screws.
Databáze: OpenAIRE