Resumen
ISO 28079:2009 specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. ISO 28079:2009 applies to a measurement of toughness, called Palmqvist toughness, calculated from the total length of cracks emanating from the corners of a Vickers hardness indentation, and it is intended for use with metal-bonded carbides and carbonitrides (normally called hardmetals, cermets or cemented carbides). The test procedures proposed in ISO 28079:2009 are intended for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures proposed in ISO 28079:2009 are also intended for use in a normal laboratory-air environment. They are not intended for use in corrosive environments, such as strong acids or seawater.
Informaciones generales
-
Estado: PublicadoFecha de publicación: 2009-07Etapa: Norma Internacional para revisar [90.92]
-
Edición: 1Número de páginas: 11
-
Comité Técnico :ISO/TC 119/SC 4
- RSS actualizaciones
Próxima versión en desarrollo
![](/modules/iso-jahia-service-module/img/iso-logo.png)
ISO/DIS 28079
ISO/DIS 28079
Hardmetals — Palmqvist toughness test
Ciclo de vida
-
Ahora
-
Será reemplazada por
En desarrolloISO/DIS 28079
¿Tiene alguna duda?
Consulte nuestras Ayuda y asistencia
Horario de asistencia:
De lunes a viernes - 09:00-12:00, 14:00-17:00 (UTC+1)