Artículo
Crevice corrosion kinetics of nickel alloys bearing chromium and molybdenum
Zadorozne, Natalia Silvina
; Giordano, C.M.; Rodríguez, Martín Alejandro
; Carranza, Ricardo Mario; Rebak, Raul Basilio
Fecha de publicación:
08/2012
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Electrochimica Acta
ISSN:
0013-4686
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The crevice corrosion kinetics of alloys C-22, C-22HS and HYBRID-BC1 was studied in several chloride solutions at 90°C. The crevice corrosion resistance of the alloys increased with PREN (Pitting Resistance Equivalent Number), which is mainly affected by the Mo content in the alloys. The crevice corrosion kinetics of the three alloys was analyzed at potentials slightly higher than the repassivation potential. Crevice propagation was controlled by ohmic drop in the more dilute chloride solutions, and by charge transfer in the more concentrated chloride solutions. Ohmic drop was not a necessary condition for crevice corrosion to occur. © 2012 Elsevier Ltd. All rights reserved.
Palabras clave:
Chloride
,
Crevice Corrosion
,
N06022
,
Nickel Alloys
,
Repassivation
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - NORDESTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NORDESTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NORDESTE
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Zadorozne, Natalia Silvina; Giordano, C.M.; Rodríguez, Martín Alejandro; Carranza, Ricardo Mario; Rebak, Raul Basilio; Crevice corrosion kinetics of nickel alloys bearing chromium and molybdenum; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 76; 8-2012; 94-101
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