Studies on Corrosion Behavior of Ceramic Sprayed Stainless Steels (Report II) : Utilization of Anodic Polarization Curves to Evaluate Corrosion Tendency(Materials, Metallurgy & Weldability)

概要

論文の詳細を見る
The anodic polarization curves of ceramic plasma-sprayed samples, the blasted stainless steel itself and the coating films in 3.5%NaCl solution were separately determined. The parameters on the curves were sorted out and utilized to evaluate corrosion behavior in 3.5%NaCl solution. The result obtained by the polarization curve method was similar to that obtained by the natural potential method. The high Al_2O_3-content coatings of Al_2O_3-TiO_2 system ceramics were affirmed to be much more beneficial than the high TiO_2-content coatings. The parameter, termed the corrosion sensitivity taking the effect of both the mean passive current density and the passive potential range into account, was derived and regarded as an criterion for judging the corrosion behavior of sprayed samples.
大阪大学の論文