Electrochemical Noise Analysis of Nickel Based Superalloys in Acid Solutions

Gaona Tiburcio, Citlalli y Aguilar M, M.R y Zambrano Robledo, Patricia del Carmen y Estupiñan López, Francisco H. y Cabral Miramontes, José Ángel y Nieves Mendoza, Demetrio y Castillo González, E. y Almeraya Calderón, Facundo (2013) Electrochemical Noise Analysis of Nickel Based Superalloys in Acid Solutions. International Journal of Electrochemical Science, 2014 (9). pp. 523-533. ISSN 14523981

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Resumen

In this paper we study the corrosion behavior of nickel-based superalloys (Inconel 690, Inconel 718, Incoloy 800, Incoloy 825), compared with commercial steels (carbon Steel 1018 and stainless steel 304), in acid (10% H2SO4 and 10 % CH3COOH) and H2O at room temperature, by electrochemical noise technique, with sampling 1024 points per second. Statistical analysis of electrochemical noise technique yielded LI localization index, the type of corrosion and the noise resistance as well as the corrosion rate. The corrosion rates of 304 stainless steel and carbon steel where much higher than nickel base alloys. Current noise time series indicate superalloy have mostly noble potentials, but depends on the electrolyte. Nickel base superalloys have good response to low temperature corrosion, but tend to localized corrosion in the electrolyte tested.

Tipo de elemento:

Article

Palabras claves no controlados:

Nickel-based superalloys, Corrosion, Electrochemical noise, Localization index

Materias:

T Tecnología > TA Ingeniería General y Civil

Divisiones:

Ingeniería Mecánica y Eléctrica

Usuario depositante:

Editor Repositorio

Creadores:

Creador	Email	ORCID
Gaona Tiburcio, Citlalli	citlalli.gaonatbr@uanl.edu.mx	orcid.org/0000-0001-9072-3090
Aguilar M, M.R	NO ESPECIFICADO	NO ESPECIFICADO
Zambrano Robledo, Patricia del Carmen	patricia.zambranor@uanl.edu.mx	NO ESPECIFICADO
Estupiñan López, Francisco H.	NO ESPECIFICADO	NO ESPECIFICADO
Cabral Miramontes, José Ángel	NO ESPECIFICADO	NO ESPECIFICADO
Nieves Mendoza, Demetrio	NO ESPECIFICADO	NO ESPECIFICADO
Castillo González, E.	NO ESPECIFICADO	NO ESPECIFICADO
Almeraya Calderón, Facundo	facundo.almerayacl@uanl.edu.mx	orcid.org/0000-0002-3014-2814