B B Zhang1, B L Wang, L Li, Y F Zheng. 1. Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, China.
Abstract
OBJECTIVES: The aim of the present study was to investigate the effect of thermal oxidation on the corrosion behavior of Ti-5Ag alloy. METHODS: The microstructure of Ti-5Ag alloy without and with thermal oxidization treatment were characterized, with commercial pure (CP) Ti as control, by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The electrochemical behavior in artificial saliva solution was compared for CP Ti, Ti-5Ag alloy with and without thermal oxidation. RESULTS: Compared to CP Ti, Ti-5Ag alloy without thermal oxidization treatment possessed much lower current density, higher open circuit potential, larger impedance value, and its corrosion resistance could be further improved with thermal oxidation. SIGNIFICANCE: The corrosion resistance was enhanced by Ag addition for titanium and could be further improved by thermal oxidation.
OBJECTIVES: The aim of the present study was to investigate the effect of thermal oxidation on the corrosion behavior of Ti-5Ag alloy. METHODS: The microstructure of Ti-5Ag alloy without and with thermal oxidization treatment were characterized, with commercial pure (CP) Ti as control, by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The electrochemical behavior in artificial saliva solution was compared for CP Ti, Ti-5Ag alloy with and without thermal oxidation. RESULTS: Compared to CP Ti, Ti-5Ag alloy without thermal oxidization treatment possessed much lower current density, higher open circuit potential, larger impedance value, and its corrosion resistance could be further improved with thermal oxidation. SIGNIFICANCE: The corrosion resistance was enhanced by Ag addition for titanium and could be further improved by thermal oxidation.