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Processing and characterisation of cermet/hardmetal laminates with strong interfaces

Opened Access Processing and characterisation of cermet/hardmetal laminates with strong interfaces

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Autor: Córdoba Gallego, José Manuel
Chicardi Augusto, Ernesto
Torres Hernández, Yadir
Gotor Martínez, Francisco José
Bermejo Moratino, Raul
Medri, Valentina
Dalle, Fabbriche D
Departamento: Universidad de Sevilla. Departamento de Química Inorgánica
Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales
Fecha: 2014
Publicado en: Materials & Design, 58, 226-233.
Tipo de documento: Artículo
Resumen: Cemented carbides and cermets are potential materials for high speed machining tools. However, cemented carbides are not chemically stable at high temperature and cermets present poor fracture toughness. Novel cermet/hardmetal multilayer systems show a huge potential for this intended application. It would be possible to achieve the right balance of the required thermomechanical properties using cermet as temperature protective outer layers and hardmetal as reinforcement layers. In this work, preliminary results on the microstructural and mechanical characterisation of a multilayer TiCxN1-x-Co/WC-Co composite densified by hot pressing are presented, with special attention to the properties of the interface. Microstructural observations revealed the existence of strong bonding interfaces between cermet and hardmetal layers due to chemical interaction during the sintering process. As a consequence, owing to the different coefficient of thermal expansion between cermet and hardmetal, a t...
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Cita: Córdoba Gallego, J.M., Chicardi Augusto, E., Torres Hernández, Y., Gotor Martínez, F.J., Bermejo Moratino, R., Medri, V. y Dalle, F.D. (2014). Processing and characterisation of cermet/hardmetal laminates with strong interfaces. Materials & Design, 58, 226-233.
Tamaño: 4.479Mb
Formato: PDF

URI: https://hdl.handle.net/11441/74167

DOI: 10.1016/j.matdes.2014.01.076

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