NEN-ISO 28079

Hardmetals - Palmqvist toughness test

active, Most Current
Organization: NEN
Publication Date: 1 July 2009
Status: active
Page Count: 21
ICS Code (Mechanical testing of metals): 77.040.10
ICS Code (Powder metallurgy): 77.160
scope:

This International Standard specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This International Standard 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 International Standard are intended for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures proposed in this International Standard 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.

Document History

NEN-ISO 28079
July 1, 2009
Hardmetals - Palmqvist toughness test
This International Standard specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This International Standard applies to a...
Advertisement