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Article

Electrochemical Noise Measurements of Advanced High-Strength Steels in Different Solutions

1
Universidad Autonoma de Nuevo Leon, FIME-Centro de Investigación e Innovación en ingeniería Aeronáutica (CIIIA), Av. Universidad s/n, Ciudad Universitaria, San Nicolás de los Garza, Nuevo León 66455, Mexico
2
Facultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, Mexico
3
Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua 31136, Mexico
*
Author to whom correspondence should be addressed.
Metals 2020, 10(9), 1232; https://doi.org/10.3390/met10091232
Received: 10 August 2020 / Revised: 7 September 2020 / Accepted: 8 September 2020 / Published: 13 September 2020
(This article belongs to the Special Issue Localized Corrosion of Metals and Alloys)
Advanced high-strength steels (AHSS), are commonly used in the manufacture of car bodies, as well as in front and rear rails, and safety posts. These components can be exposed to corrosive environments for instance, in countries where de-icing salts are used. In this work, the corrosion behavior of four AHSS steels with dual-phase [ferrite-martensite (DP) and ferrite-bainite (FB)] steels were studied by means of electrochemical noise (EN) measurements according to the ASTM G199-09 standard in NaCl, CaCl2 and MgCl2 aqueous solutions at room temperature. The direct current (DC) trend data from EN were removed by a polynomial method of statistical and spectral analysis. According to the noise resistance (Rn) values obtained for the DP and FB dual-phase steels, both the martensite/bainite content and morphology of the phase constituents have an important effect on the corrosion behavior of these steels. The L.I. (localization index) (0.00054 to 0.15431), skewness (−6.18 to 7.35) and kurtosis (high values 37.15, 74.84 and 106.52) were calculated. In general, the results indicated that the main corrosion process is related to uniform corrosion. Corrosion behavior of AHSS steels exposed in NaCl solution could be related to the morphology of the phase constituents exposed in NaCl, CaCl2 and MgCl2 solutions. View Full-Text
Keywords: corrosion; AHSS steels; electrochemical noise; localization index; skewness; kurtosis corrosion; AHSS steels; electrochemical noise; localization index; skewness; kurtosis
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MDPI and ACS Style

Montoya-Rangel, M.; Garza-Montes de Oca, N.; Gaona-Tiburcio, C.; Colás, R.; Cabral-Miramontes, J.; Nieves-Mendoza, D.; Maldonado-Bandala, E.; Chacón-Nava, J.; Almeraya-Calderón, F. Electrochemical Noise Measurements of Advanced High-Strength Steels in Different Solutions. Metals 2020, 10, 1232. https://doi.org/10.3390/met10091232

AMA Style

Montoya-Rangel M, Garza-Montes de Oca N, Gaona-Tiburcio C, Colás R, Cabral-Miramontes J, Nieves-Mendoza D, Maldonado-Bandala E, Chacón-Nava J, Almeraya-Calderón F. Electrochemical Noise Measurements of Advanced High-Strength Steels in Different Solutions. Metals. 2020; 10(9):1232. https://doi.org/10.3390/met10091232

Chicago/Turabian Style

Montoya-Rangel, Marvin, Nelson Garza-Montes de Oca, Citlalli Gaona-Tiburcio, Rafael Colás, José Cabral-Miramontes, Demetrio Nieves-Mendoza, Erick Maldonado-Bandala, José Chacón-Nava, and Facundo Almeraya-Calderón. 2020. "Electrochemical Noise Measurements of Advanced High-Strength Steels in Different Solutions" Metals 10, no. 9: 1232. https://doi.org/10.3390/met10091232

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