Determination of the effect of NaH2PO4 film obtained on Ti45Nb by sol-gel method on corrosion resistance and surface wettability

Abstract

– In this study, NaH2PO4 film was obtained by sol-gel method on Ti45Nb material, which is frequently used in the biomedical field. The aim of this study is to compare the surface wettability and corrosion resistance of the samples untreated Ti45Nb and coated with NaH2PO4. XRD and SEM were used for the structural characterization of the samples. Surface wettability was determined using a surface tension meter. Electrochemical measurements in simulated body fluid (SBF) solution were performed. Corrosion tests were carried out with the GAMRY Series G750TM Potentiostat/Galvanostat/ZRA device using Potentiodynamic Polarization and the OCP (Open Circuit Potential) Technique (Gamry Instruments, Warminster, USA). According to the results obtained, higher corrosion resistance and better surface wettability were obtained in the NaH2PO4 coated sample.