Interactions between wear and corrosion on cast and sintered Ti-12Nb alloy in comparison with the commercial Ti-6Al-4V alloy

This work investigates the corrosion and tribocorrosion behavior of α + β Ti-12Nb alloy processed by casting and sintering, in 9 g/l NaCl solution at body temperature, and compares the results with the commercial Ti-6Al-4 V alloy. Different electrochemical techniques were used to access the corrosio...

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Detalles Bibliográficos
Autores: Çaha, I., Alves, A. C., Chirico, C., Tsipas, S. A., Rodrigues, I. R. [UNESP], Pinto, A. M.P., Grandini, C. R. [UNESP], Rocha, L. A. [UNESP], Gordo, E., Toptan, F.
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:11449/200937
Acceso en línea:http://dx.doi.org/10.1016/j.corsci.2020.108925
http://hdl.handle.net/11449/200937
Access Level:acceso abierto
Palabra clave:Casting
Corrosion
Powder metallurgy
Titanium alloys
Tribocorrosion
Descripción
Sumario:This work investigates the corrosion and tribocorrosion behavior of α + β Ti-12Nb alloy processed by casting and sintering, in 9 g/l NaCl solution at body temperature, and compares the results with the commercial Ti-6Al-4 V alloy. Different electrochemical techniques were used to access the corrosion behavior. Tribocorrosion behavior was studied at open circuit potential under continuous and intermittent sliding, and at anodic potentiostatic condition under continuous sliding. Results revealed that Ti-12Nb alloys presented similar tribocorrosion behavior although the sintered one exhibited a better corrosion behavior. Nevertheless, Ti-6Al-4 V presented better overall degradation resistance than both Ti-12Nb alloys.