Artículo
Enhanced oxidation resistance of Ti(C,N)-based cermets containing Ta
Autor/es | Chicardi Augusto, Ernesto
Gotor Martínez, Francisco José Córdoba Gallego, José Manuel |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte |
Fecha de publicación | 2014 |
Fecha de depósito | 2018-05-07 |
Publicado en |
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Resumen | (TixTa1-x)(C0.5N0.5)-Co-based cermets with various Ta contents (x=0, 0.01, 0.05, 0.1 and 0.2) were oxidized at 900°C for 48h in static air. A parabolic rate law, which is indicative of the formation of a protective oxide ... (TixTa1-x)(C0.5N0.5)-Co-based cermets with various Ta contents (x=0, 0.01, 0.05, 0.1 and 0.2) were oxidized at 900°C for 48h in static air. A parabolic rate law, which is indicative of the formation of a protective oxide layer, was observed for all samples. The multi-layered oxide scale and the internal oxidation region that formed as the oxidation progressed toward the interior of the cermet specimens were characterized using XRD, SEM and EDS. The enhanced oxidation resistance achieved in cermets composed by a hard component with stoichiometry Ti0.95Ta0.05C0.5N0.5 may satisfy the optimal requirements for many applications in the field of cutting tools |
Agencias financiadoras | Gobierno de España |
Cita | Chicardi Augusto, E., Gotor Martínez, F.J. y Córdoba Gallego, J.M. (2014). Enhanced oxidation resistance of Ti(C,N)-based cermets containing Ta. Corrosion Science, 84, 11-20. |
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