Electropolishing of Type 304 Stainless Steel in an Amide-Type Ionic Liquid Containing Chloride Ion

Le résumé fourni par la source

The anodic dissolution of type 304 stainless steel (SUS304) and chromium were investigated in an amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) in the presence of Cl – . The constituents of SUS304 (Fe, Ni, and Cr) were dissolved through both the direct anodic dissolution and the simultaneous chemical etching by trichloride ion, Cl 3 – , to form their chlorocomplexes. Micro- and macro-smoothing of SUS304 were found to be possible after potentiostatic anodic electrolysis in 0.5 M BMPCl/BMPTFSA at 1.0 V vs Ag|Ag(I) and 343 K with agitation. The in-situ analysis of the local physical properties of the electrolyte using an impedance type electrochemical quartz crystal microbalance revealed that a viscous layer did not form near the electrode during the anodic dissolution of SUS304.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.