Abstract
Corrosion and discolaration of Chromium-Nickel alloys were studied by placing the alloy specimens in 0.01N HCl, 0.05% HCl, 1% Lactic acid, Saline, humans saliva, 0.01% Na_2S and 0.1% Na_2S+1% Lactic acid mixture for 3-21 days, and then measured weight loss, concentration oa disolved metallic ion, spontaneous electric potential and color difference of the surface of chromium-nickel alloys bridge. The results indicated that the amounts of weight loss and metallic ion in 1% lactic acid or 0.01N HCl could be related to the chromium content of the alloys. When chromium content excess 12% very little corrosion and discoloration was observed.
