LAUSR

We study the corrosion resistance of VT6s titanium alloy with oxynitride coatings in a 0.9% NaCl isotonic solution at temperatures of 36 and 40°С simulating the medium of human body in normal and inflammatory states, respectively. It is shown that as the temperature of the solution increases, the corrosion resistance of the nitride coating based on the Ti2N phase and modified with oxygen decreases, whereas the corrosion resistance of the nitride coating based on the ТіN phase and modified with oxygen strongly increases. It is also established that, independently of the temperature of solution, the corrosion resistance of the oxynitride coating formed on the basis of the Ti2N phase is higher for higher oxygen contents of oxynitride, whereas the corrosion resistance of the oxynitride coating formed on the basis of the ТіN phase is higher for lower oxygen contents.