Corrosion Behavior of Advanced High-Strength Steels (AHSS) in Chloride Solutions for Automotive Applications

Almeraya Calderón, Facundo y Montoya Rangel, Marvin y Jáquez Muñoz, Jesús Manuel y Lara Banda, María del Refugio y Estupiñan López, Francisco Humberto y Cabral Miramontes, José Ángel y Gaona Tiburcio, Citlalli (2025) Corrosion Behavior of Advanced High-Strength Steels (AHSS) in Chloride Solutions for Automotive Applications. Metals, 15 (2025). pp. 1-23. ISSN 2075-4701

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URL o página oficial: https://doi.org/10.3390/met15101116

Resumen

The automotive industry utilizes high-strength low-alloy (HSLA) steels and advanced high-strength steels (AHSS) to manufacture various components, including front and rear rails, chassis, and roll bars, among others. In countries where de-icing salts are used, these steels are exposed to a localized corrosive environment. This research aims to characterize the corrosion behavior of AHSS [dual-phase (DP), ferrite–bainite (FB), and complex-phase (CP)] using electrochemical techniques such as cyclic potentiodynamic polarization (CPP) curves and electrochemical noise (EN), by immersing the steels in NaCl, CaCl2, and MgCl2 solutions. Optical microscopy (OM) is used to observe the microstructure of the tested samples. The CPP corrosion behavior of AHSS exposed to chloride solutions exhibits corrosion densities in the range of 10−2 and 10−3 mA/cm2. The results generally indicated that AHSS are susceptible to localized corrosion due to the presence of positive hysteresis in the CPP. Zn results show that DP780 presented higher corrosion resistance, with 845 Ω·cm2, whereas FB780 presented 253 Ω·cm2 when exposed to NaCl. Additionally, the type of corrosion is localized.

Tipo de elemento:

Article

Palabras claves no controlados:

Corrosion; AHSS; Electrochemical noise; Wavelets; Polarization

Materias:

Q Ciencia > Q Ciencias en General
Q Ciencia > QD Química
T Tecnología > TJ Ingeniería Mecánica
T Tecnología > TN Ingeniería Minera. Metalurgia
T Tecnología > TP Tecnología Química

Divisiones:

Ingeniería Mecánica y Eléctrica > Doctorado en Ciencias de la Ingeniería Aeronáutica

Usuario depositante:

Dra Citlalli Gaona

Creadores:

Creador	Email	ORCID
Almeraya Calderón, Facundo	facundo.almerayacl@uanl.edu.mx	orcid.org/0000-0002-3014-2814
Montoya Rangel, Marvin	NO ESPECIFICADO	NO ESPECIFICADO
Jáquez Muñoz, Jesús Manuel	NO ESPECIFICADO	NO ESPECIFICADO
Lara Banda, María del Refugio	NO ESPECIFICADO	NO ESPECIFICADO
Estupiñan López, Francisco Humberto	NO ESPECIFICADO	NO ESPECIFICADO
Cabral Miramontes, José Ángel	NO ESPECIFICADO	orcid.org/0000-0003-1483-3081
Gaona Tiburcio, Citlalli	citlalli.gaonatbr@uanl.edu.mx	orcid.org/0000-0001-9072-3090