Susceptibility to Pitting Corrosion of Ti-CP2, Ti-6Al-2Sn-4Zr-2Mo, and Ti-6Al-4V Alloys for Aeronautical Applications

Jáquez Muñoz, Jesús Manuel y Gaona Tiburcio, Citlalli y Lira Martínez, Manuel Alejandro y Zambrano Robledo, Patricia del Carmen y Maldonado Bandala, Erick y Samaniego Gámez, Pedro Oliver y Nieves Mendoza, Demetrio y Olguín Coca, Javier y Estupiñan López, Francisco H. y Almeraya Calderón, Facundo (2021) Susceptibility to Pitting Corrosion of Ti-CP2, Ti-6Al-2Sn-4Zr-2Mo, and Ti-6Al-4V Alloys for Aeronautical Applications. Metals, 11 (7). pp. 1-18. ISSN 2075-4701

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URL o página oficial: https://doi.org/10.3390/met11071002

Resumen

Titanium alloys are used in different industries like biomedical, aerospace, aeronautic, chemical, and naval. Those industries have high requirements with few damage tolerances. Therefore, they are necessary to use materials that present fatigue, mechanical, and corrosion resistance. Although Ti-alloys are material with high performance, they are exposed to corrosion in marine and industrial environments. This research shows the corrosion behavior of three titanium alloys, specifically Ti CP2, Ti-6Al-2Sn-4Zr-2Mo, and Ti-6Al-4V. Alloys were exposed on two electrolytes to a 3.5 wt % H2SO4 and NaCl solutions at room temperature using cyclic potentiodynamic polarization (CPP) and electrochemical noise (EN) according to ASTM G61 and ASTM G199 standards. CPP technique was employed to obtain electrochemical parameters as the passivation range (PR), corrosion type, passive layer persistence, corrosion potential (Ecorr), and corrosion rate. EN was analyzed by power spectral density (PSD) in voltage. Results obtained revealed pseudopassivation in CPP and PSD exposed on NaCl for Ti-6Al-2Sn-4Zr-2Mo, indicating instability and corrosion rate lower. However, Ti-6Al-4V presented the highest corrosion rate in both electrolytes. Ti-6Al-2Sn-4Zr-2Mo revealed pseudopassivation in CPP and PSD in NaCl, indicating a passive layer unstable. However, the corrosion rate was lower in both solutions.

Tipo de elemento: Article
Palabras claves no controlados: Corrosion, Potentiodynamic polarization, PSD, Titanium.
Materias: T Tecnología > TA Ingeniería General y Civil
Divisiones: Ingeniería Mecánica y Eléctrica
Usuario depositante: Dra Citlalli Gaona
Creadores:
CreadorEmailORCID
Jáquez Muñoz, Jesús ManuelNO ESPECIFICADONO ESPECIFICADO
Gaona Tiburcio, Citlallicitlalli.gaonatbr@uanl.edu.mxorcid.org/0000-0001-9072-3090
Lira Martínez, Manuel AlejandroNO ESPECIFICADONO ESPECIFICADO
Zambrano Robledo, Patricia del Carmenpatricia.zambranor@uanl.edu.mxNO ESPECIFICADO
Maldonado Bandala, ErickNO ESPECIFICADONO ESPECIFICADO
Samaniego Gámez, Pedro OliverNO ESPECIFICADONO ESPECIFICADO
Nieves Mendoza, DemetrioNO ESPECIFICADONO ESPECIFICADO
Olguín Coca, JavierNO ESPECIFICADONO ESPECIFICADO
Estupiñan López, Francisco H.NO ESPECIFICADONO ESPECIFICADO
Almeraya Calderón, Facundofacundo.almerayacl@uanl.edu.mxorcid.org/0000-0002-3014-2814
Fecha del depósito: 16 Mar 2023 19:02
Última modificación: 01 Mar 2024 21:49
URI: http://eprints.uanl.mx/id/eprint/25146

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