Corrosion of Titanium Alloys Anodized Using Electrochemical Techniques
Jáquez Muñoz, Jesús Manuel y Gaona Tiburcio, Citlalli y Méndez Ramírez, Ce Tochtli y Baltazar Zamora, Miguel Ángel y Estupiñan López, Francisco H. y Bautista Margulis, Raúl German y Cuevas Rodríguez, Josefina y Flores de los Ríos, Juan Pablo y Almeraya Calderón, Facundo (2023) Corrosion of Titanium Alloys Anodized Using Electrochemical Techniques. Metals, 13 (3). p. 476. ISSN 2075-4701
|
Texto
metals-13-00476.pdf - Versión Publicada Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (8MB) | Vista previa |
Resumen
The anodization of titanium has been an excellent option for protecting titanium and its alloys from corrosive environments such as acids and chloride systems, by generating a homogenous oxide layer. The objective of the current investigation was to evaluate the electrochemical corrosion behavior of alloys Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V anodized in 1MH2SO4 andH3PO4 solutions at a current density of 2.5 10–3 A/cm2. The anodization’s electrochemical characterization was achieved in NaCl and H2SO4 at 3.5% wt. electrolytes. Scanning electron microscopy (SEM) was employed to determine the anodized thickness and morphology. Cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS), based on ASTM G61-86 and G106-15 Standards, were the electrochemical techniques mainly employed. The anodized samples presented a change in Ecorr values and a higher passivation zone. The EIS plot showed a higher resistance for samples anodized in H3PO4 and Ti-6Al-2Sn-4Zr-2Mo.
Tipo de elemento: | Article | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Palabras claves no controlados: | Titanium; Anodized; Corrosion; Electrochemical impedance spectroscopy; Warburg’s diffusion | ||||||||||||||||||||||||||||||
Materias: | T Tecnología > TP Tecnología Química | ||||||||||||||||||||||||||||||
Divisiones: | Ingeniería Mecánica y Eléctrica | ||||||||||||||||||||||||||||||
Usuario depositante: | Dra Citlalli Gaona | ||||||||||||||||||||||||||||||
Creadores: |
|
||||||||||||||||||||||||||||||
Fecha del depósito: | 19 Jun 2023 21:59 | ||||||||||||||||||||||||||||||
Última modificación: | 19 Jun 2023 21:59 | ||||||||||||||||||||||||||||||
URI: | http://eprints.uanl.mx/id/eprint/25589 |
Actions (login required)
Ver elemento |