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Corrosion of 316L in Liquid Tellurium at 551°C

L. Martinelli 1, * D. J. Young 2 S. Gossé 3 S. Bosonnet 1 
Abstract : Grade 316L stainless steel was exposed to liquid tellurium at 551 o C. Corrosion was rapid, leading to more than 100$\mu$ m loss of steel section in 30 min. The corrosion product was a mixed telluride scale, which thickened according to parabolic kinetics whilst simultaneously dissolving at its outer surface into the liquid tellurium. A mathematical model based on diffusion-controlled scale growth coupled with dissolution at a rate controlled by liquid phase diffusion is shown to describe scaling and dissolution kinetics successfully.
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L. Martinelli, D. J. Young, S. Gossé, S. Bosonnet. Corrosion of 316L in Liquid Tellurium at 551°C. Corrosion Science, Elsevier, 2019, Volume 151, pp.Pages 35-43. ⟨10.1016/j.corsci.2019.02.001⟩. ⟨cea-02484118⟩



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