77.040.99 - Other methods of testing of metals

This document gives guidelines for the measurement of hardmetal grain size by metallographic
techniques only using optical or electron microscopy. It is intended for WC/Co hardmetals (also called
cemented carbides or cermets) containing primarily tungsten carbide (WC1)) as the hard phase. It is
also intended for measuring the grain size and distribution by the linear-intercept technique.
This document essentially covers four main topics:
— calibration of microscopes, to underpin the accurac...view more

This document specifies the methods of metallographic determination of the microstructure of
hardmetals using photomicrographs.

This document provides a method for the evaluation of the resistance to hydrogen embrittlement (i.e. hydrogen delayed fracture) using constant loading test with hydrogen pre-charged specimens. The amount of hydrogen content absorbed in the specimens is analysed quantitatively by thermal desorption analysis such as gas chromatography, mass spectrometry and so on. In the case of hydrogen continuous charging such as hydrogen absorption in aqueous solution at free corrosion potential, hydrogen absor...view more

This document specifies the methods of metallographic determination of the microstructure of hardmetals using photomicrographs.

This document gives guidelines for the measurement of hardmetal grain size by metallographic techniques only using optical or electron microscopy. It is intended for WC/Co hardmetals (also called cemented carbides or cermets) containing primarily tungsten carbide (WC[1]) as the hard phase. It is also intended for measuring the grain size and distribution by the linear-intercept technique. This document essentially covers four main topics: — calibration of microscopes, to underpin the accuracy of...view more

EN-ISO 643 specifies a micrographic method of determining apparent ferritic oraustenitic grain size in steels. It describes the methods of revealing grainboundaries and of estimating the mean grain size of specimens with unimodal sizedistribution. Although grains are three-dimensional in shape, the metallographicsectioning plane can cut through a grain at any point from a grain corner, tothe maximum diameter of the grain, thus producing a range of apparent grainsizes on the two-dimensional plane...view more

This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensio...view more

This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensio...view more

This document defines the decarburization and specifies three methods of measuring the depth of
decarburization of steel products.

ISO 3887:2017 defines the decarburization and specifies three methods of measuring the depth of decarburization of steel products.

ISO 3887:2017 defines the decarburization and specifies three methods of measuring the depth of decarburization of steel products.

This draft European Standard defines a method of microscopic non-metallic endogenous inclusion assessment using picture charts.
The method does not apply to particles of a length or diameter less than 3,0 µm or a width smaller than 2,0 µm. If defined by a product standard or agreement between the involved parties for certain special products, inclusions with a width below 2,0 µm can be evaluated by length alone.Inclusions with dimensions exceeding the upper limits in Table 2 are evaluated as be...view more

This draft European Standard defines a method of microscopic non-metallic endogenous inclusion assessment using picture charts.
The method does not apply to particles of a length or diameter less than 3,0 µm or a width smaller than 2,0 µm. If defined by a product standard or agreement between the involved parties for certain special products, inclusions with a width below 2,0 µm can be evaluated by length alone.Inclusions with dimensions exceeding the upper limits in Table 2 are evaluated as be...view more

ISO 18203:2016 specifies a method of measuring the case hardening depth, surface hardening depth, nitriding hardness depth and total thickness of surface hardening depth obtained, e.g. thermal (flame and induction hardening, electron beam hardening, laser beam hardening, etc.) or thermochemical (carbonitriding, carburizing and hardening, hardening and nitriding, etc.) treatment.

This part of ISO 4499 specifies methods for the metallographic determination of the presence, type,
and distribution of porosity, uncombined carbon and eta-phase in hardmetals.

This part of ISO 4499 gives guidelines for the measurement of microstructural features in Ti(C,N)
based hardmetals and WC/Co hardmetals that contain additional cubic carbides by metallographic
techniques only using optical or electron microscopy. It is intended for sintered hardmetals (also called
cemented carbides or cermets) containing primarily inorganic carbides and nitrides as the hard phase.
It is also intended for measuring the phase size and distribution by the linear intercept techn...view more

ISO 4499-3:2016 gives guidelines for the measurement of microstructural features in Ti(C,N) based hardmetals and WC/Co hardmetals that contain additional cubic carbides by metallographic techniques only using optical or electron microscopy. It is intended for sintered hardmetals (also called cemented carbides or cermets) containing primarily inorganic carbides and nitrides as the hard phase. It is also intended for measuring the phase size and distribution by the linear intercept technique.

ISO 4499-4:2016 specifies methods for the metallographic determination of the presence, type, and distribution of porosity, uncombined carbon and eta-phase in hardmetals.

ISO 4499-4:2016 specifies methods for the metallographic determination of the presence, type, and distribution of porosity, uncombined carbon and eta-phase in hardmetals.

ISO 4499-3:2016 gives guidelines for the measurement of microstructural features in Ti(C,N) based hardmetals and WC/Co hardmetals that contain additional cubic carbides by metallographic techniques only using optical or electron microscopy. It is intended for sintered hardmetals (also called cemented carbides or cermets) containing primarily inorganic carbides and nitrides as the hard phase. It is also intended for measuring the phase size and distribution by the linear intercept technique.