Tribocorrosion behaviour of bio-functionalized porous Ti surfaces obtained by two-step anodic treatment

A bio-functionalized porous surface was obtained on Ti by a two-step anodic treatment and its corrosion and tribocorrosion behaviour were evaluated. The first-step provided macro-porosity while the second-step, a bio-functionalization process by micro-arc oxidation (MAO), provided an oxide layer (an...

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Detalles Bibliográficos
Autores: Costa, A. I., Sousa, L., Alves, A. C., Toptan, F. [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/198558
Acceso en línea:http://dx.doi.org/10.1016/j.corsci.2020.108467
http://hdl.handle.net/11449/198558
Access Level:acceso abierto
Palabra clave:Anodic treatment
Corrosion
Micro-arc oxidation (MAO)
Titanium
Tribocorrosion
Descripción
Sumario:A bio-functionalized porous surface was obtained on Ti by a two-step anodic treatment and its corrosion and tribocorrosion behaviour were evaluated. The first-step provided macro-porosity while the second-step, a bio-functionalization process by micro-arc oxidation (MAO), provided an oxide layer (anatase + rutile) with micro-pores and bio-active elements (Ca + P). Corrosion and tribocorrosion behaviour were improved due to the protective role given by the oxide layer formed on the second-step. Tribocorrosion mechanisms for the bio-functionalized porous structures are presented.