ISO/DIS 28079

This Draft International Standard is in the enquiry phase with ISO members.

Will replace ISO 28079:2009

ISO/DIS 28079

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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.

General information

Status
: Under development

Stage
: Full report circulated: DIS approved for registration as FDIS [40.99]
Edition
: 2

Number of pages
: 10
Technical Committee :
ISO/TC 119/SC 4

ICS :
77.160 77.040.10
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