Abstract: Abstract: Objective To study the corrosion resistance of Vitallium 2000 plus Co-Cr-Mo alloy in different milk beverages. Methods Compared with artificial saliva (the control group), electro chemical technique was used to measure the electric potential of corrosion (Ecorr), current density of corrosion (Icorr) and polarization resistance (Rp) of Vitallium 2000 plus Co-Cr-Mo alloy in different dairy products. After electrochemical analysis, microstructural and phase diffraction was examined by FSEM to compare the morphological differences between groups before and after the corrosion. Results The Icorr of Vitallium 2000 plus Co-Cr-Mo alloy in three different experimental groups increased, while Ecorr and Rp decreased evidently. Compared with the control group, the corrosion resistance showed a significant difference (p<0.05). Conclusion The corrosion resistance of Vitallium 2000 plus Co-Cr-Mo alloy decrease evidently in milk, soymilk and yogurt.

Key words: Vitallium 2000 plus Co-Cr-Mo alloy , electrochemical corrosion, artificial saliva, dairy drinks