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Enhanced oxidation resistance of Ti(C,N)-based cermets containing Ta

Opened Access Enhanced oxidation resistance of Ti(C,N)-based cermets containing Ta

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Autor: 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: 2014
Publicado en: Corrosion Science, 84, 11-20.
Tipo de documento: Artículo
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 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
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.
Tamaño: 2.459Mb
Formato: PDF

URI: https://hdl.handle.net/11441/74179

DOI: 10.1016/j.corsci.2014.03.007

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