CORROSION PROPERTIES OF Ti-6Al-4V ALLOY WITH NITRIDE AND OXYNITRIDE COATINGS IN PHYSIOLOGICAL SOLUTIONS
- 1 Karpenko Physico-Mechanical Institute of National Academy of Sciences of Ukraine, Ukraine
Abstract
In this work, the corrosion resistance of Ti-6Al-4V alloy with nitride and oxynitride coatings was investigated in isotonic 0.9% NaCl solution and Ringer’s solution at temperatures of 36оС and 40оС, which simulates the transition from normal to inflammatory condition of the human body. It was determined that the change of temperature of both physiological solutions does not decrease the protective function of nitride coating on Ti-6Al-4V alloy. It was shown that the corrosion properties of oxynitride coating are deteriorated by increasing the temperature up to 40oС, especially in 0.9% NaCl solution.