Effect of Alloying Tin on the Corrosion Characteristics of Austenitic Stainless Steel in Sulfuric Acid and Sodium Chloride Solutions
作者： Min Sun , Ming Luo , Chao Lu , Tian-Wei Liu , Yan-Ping Wu
DOI: 10.1007/S40195-015-0299-4
关键词: Materials science 、 Sulfuric acid 、 Metallurgy 、 Austenitic stainless steel 、 Passivation 、 Tin 、 Pitting corrosion 、 Corrosion 、 Hydroxide 、 Oxide
摘要: The effect of tin on general and pitting corrosion behaviors the austenitic stainless steel in sulfuric acid sodium chloride solutions was investigated by potentiostatic critical temperature, cyclic potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electron microscopy. results showed that there is an optimal addition which around (0.062–0.1) wt%, resistance B316LX with 0.08 wt% boiling H2SO4 increased remarkably a rate order magnitude lower than 316L. Hydrolyzation ions induces more metastable pit occurrence material surface. However, increases because oxides improve density uniformity passive film, hydroxide oxide inhabit process growing. illustrated schematically.
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