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The influence of the glycerin concentration on the porous structure of ferritic stainless steel obtained by anodization

Bervian, Alexander and Ludwig, Gustavo Alberto and Kunst, Sandra Raquel and Rossa Beltrami, Lílian Vanessa and Dewes Moura, Angela Beatrice and Malfatti, Célia Fraga and Oliveira, Cláudia Trindade (2015) The influence of the glycerin concentration on the porous structure of ferritic stainless steel obtained by anodization. DYNA, 82 (190). pp. 46-52. ISSN 2346-2183

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Resumen

Anodizing of ferritic stainless steel has been used for decoration purposes to obtain a barrier effect. The most commonly used electrolyte for this process is INCO (5M H2SO4 + 2,5M CrO3). INCO electrolyte with glycerin addition induces the formation of ordered porous structures, because glycerin reduces the electrolyte conductivity. Ferritic stainless steel was anodized in electrolyte composed by 2M H2SO4 with glycerin addition in different concentrations, without chromium oxide addition. It was observed that the addition of 90 v/v% glycerin promoted a reduction in the electrolyte conductivity, which caused an increase in the anodizing potential. The glycerin addition to the electrolyte diminished the oxide dissolution in the electrolytic solution, promoting the formation of an oxide with an ordered porous structure.

Tipo de documento:Artículo - Article
Palabras clave:Anodizing, ferritic stainless steel, glycerin, porous structure.
Temática:6 Tecnología (ciencias aplicadas) / Technology > 62 Ingeniería y operaciones afines / Engineering
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:59064
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :31 Oct 2017 17:20
Ultima modificación:27 Noviembre 2017 22:06
Ultima modificación:27 Noviembre 2017 22:06
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