Ponencia
High temperature mechanical properties of Ti(C,N)-Co-Mo2C cermets
Autor/es | Gallardo López, Ángela María
Morales Rodríguez, Ana Domínguez Rodríguez, Arturo Córdoba Gallego, José Manuel Avilés Escaño, Miguel Ángel Gotor Martínez, Francisco José |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada Universidad de Sevilla. Departamento de Química Inorgánica |
Fecha de publicación | 2008-09 |
Fecha de depósito | 2024-04-01 |
Publicado en |
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ISBN/ISSN | 978-087849303-6 1013-9826 1662-9795 |
Resumen | The creep behavior of a TiCxN1-x-Co-Mo2C cermet has been investigated at temperatures between 1100-1200°C in an inert atmosphere to assess the one step mechanically induced self-sustaining reaction synthesis and pressureless ... The creep behavior of a TiCxN1-x-Co-Mo2C cermet has been investigated at temperatures between 1100-1200°C in an inert atmosphere to assess the one step mechanically induced self-sustaining reaction synthesis and pressureless sintering process, and the influence of the Mo 2C additive in the high temperature mechanical properties of this cermet. The samples deform plastically at the chosen temperatures, and values of the stress exponent (n=1.7±0.6) and activation energy (Q= 4.3±0.5 eV) have been estimated from uniaxial compression tests. No significant grain growth has been detected after deformation. The reproducibility of the creep tests compared to other compositions indicates that the Mo2C addition contributes to increase notably the resistance to high temperature oxidation of the samples, so that the plastic behavior is not affected by oxidation when deformation experiments are performed in an inert atmosphere. |
Agencias financiadoras | Ministerio de Educación y Ciencia (MEC). España |
Identificador del proyecto | MAT2006-10249-C02-02
MAT2006-03068 MAT2006-04911 |
Cita | Gallardo López, Á.M., Morales Rodríguez, A., Domínguez Rodríguez, A., Córdoba Gallego, J.M., Avilés Escaño, M.Á. y Gotor Martínez, F.J. (2008). High temperature mechanical properties of Ti(C,N)-Co-Mo2C cermets. En 11th Congress on Mechanical Properties of Solids (83-88), Cádiz. España: Trans Tech Publications. |
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