Publication: Influence of Surface Nano-Structuring on Microstructure, Corrosion Behavior and Osteoblast Response of Commercially Pure Titanium Treated Through Ultrasonic Shot Peening
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Date
2022
Journal Title
JOM
Journal ISSN
Volume Title
Publisher
Springer
Abstract
Commercially pure titanium (Cp-Ti) is a widely accepted material for dental implants. Increases in surface roughness of these implants enhance osseointegration and result in better fixation with bone. Ultrasonic shot peening (USSP) is known to be an effective process of surface modification. This work is concerned with effect of USSP on modifications of the microstructure, surface topography, and corrosion behavior of Cp-Ti. The samples were USSPed for prolonged duration (30�min and 60�min) with both 1-mm and 3-mm diameter 100C6 steel balls. The thermal stability of the USSPed Cp-Ti was studied by stress relieving (SR) treatment at 500�C for 1 h. The surface roughness of the USSPed samples was increased and grains in the surface region were refined to nanoscale. The potentiodynamic polarization study showed significant increases in corrosion resistance of the USSPed samples. Further, enhanced osteoblast response was also observed for USSPed samples with and without SR. � 2022, The Minerals, Metals & Materials Society.