Publications by authors named "Vasily Astanin"
Article Synopsis
- This paper examines how current density affects the plasma electrolytic oxidation (PEO) process and coatings on Zr-1Nb alloy, focusing on the distance between plates in an electrolyzer.
- It finds that reducing the distance increases current density, which influences coating morphology and corrosion resistance during the PEO process, particularly in the microarc discharge stage.
- The study establishes new relationships between current density, nucleation time constants, diffusion coefficients, and coating thickness, contributing to improved PEO processes for complex-shaped devices like orthopedic implants.
The effect of slippage during High Pressure Torsion (HPT) of technically pure Ti and pure Cu samples was investigated. The "joint torsion of the disk halves" method was used to evaluate the effect of slippage. It was shown that slippage starts already at the early stages of HPT.
View Article and Find Full Text PDFThis work aimed at the development of wear and corrosion resistant oxide coatings for medical implants made of zirconium alloy, by plasma electrolytic oxidation (PEO). The effect of sodium silicate and boric acid addition to calcium acetate electrolyte on the coating properties was studied. Different aspects of the PEO coating were investigated: microstructure, electrochemical and wear behavior, wettability and apatite-forming ability.
View Article and Find Full Text PDF