DIN EN ISO 28079:2024-08
Hardmetals - Palmqvist toughness test (ISO/DIS 28079:2024); German and English version prEN ISO 28079:2024 / Note: Date of issue 2024-07-05
| Fecha edición: |
2026-06-01
En Vigor
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| Idiomas disponibles: | Alemán, Inglés |
| Resumen: | This document specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This document 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 this document are intended for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures proposed in this document are also intended for use in a normal laboratoryair environment. They are not intended for use in corrosive environments, such as strong acids or seawater. |
| Keywords: | Ambient temperatures|Cermets|Hardmetals|Hardness|Hardness measurement|Hardness testing|Materials|Mechanical testing|Metals|Palmqvist|Physical properties|Powder metallurgy|Samples|Test equipment|Testing|Toughness|Vickers hardness |
| ICS: | 77.040.10 - Ensayos mecánicos de metales, 77.160 - Pulvimetalurgia |
| CTN: | |
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Reemplazo Normas |
Es reemplazada por DIN EN ISO 28079:2026-06 |
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