Standard

ISO 28079:2009

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Note: This standard has a new edition: ISO 28079:2026

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Abstract

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.

Document information

  • Standard from ISO
  • Published:
  • Withdrawn:
  • Expires:
  • Edition: 1
  • Version: 1
  • Document type: IS
  • ICS 77.040.10
  • ICS 77.160
  • ISO TC ISO/TC 119/SC 4

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