Hardmetals — Palmqvist toughness test

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

14-07-2009

Publisher

International Organization for Standardization

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.

DevelopmentNote	Supersedes ISO/DIS 28079. (07/2009)
DocumentType	Standard
Pages	11
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
BS ISO 28079:2009	Identical
NEN ISO 28079 : 2009	Identical
SAC GB/T 33819 : 2017	Identical

ISO 6507-1:2005	Metallic materials Vickers hardness test Part 1: Test method
ISO 3252:1999	Powder metallurgy Vocabulary
ISO 3878:1983	Hardmetals — Vickers hardness test