ISO 4499-3:2016
Hardmetals — Metallographic determination of microstructure — Part 3: Measurement of microstructural features in Ti (C, N) and WC/cubic carbide based 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.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Principle
6 Apparatus
7 Calibration
8 Preparation of test samples
8.1 Metallographic preparation
8.2 Ti(C, N) based hardmetals – cermets
8.3 WC/Cubic carbide based hardmetals
9 Procedure for characterisation of structures
9.1 Sampling of images of structure
9.1.1 General
9.1.2 Representative selection
9.1.3 Determination of homogeneity of hard phase sizes
9.1.4 Inhomogeneous materials
9.2 Phase size measurement
9.2.1 General
9.2.2 Phase measurement by intercepts
10 Uncertainty of measurement
11 Test report
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Principle
6 Apparatus
7 Calibration
8 Preparation of test samples
8.1 Metallographic preparation
8.2 Ti(C, N) based hardmetals – cermets
8.3 WC/Cubic carbide based hardmetals
9 Procedure for characterisation of structures
9.1 Sampling of images of structure
9.1.1 General
9.1.2 Representative selection
9.1.3 Determination of homogeneity of hard phase sizes
9.1.4 Inhomogeneous materials
9.2 Phase size measurement
9.2.1 General
9.2.2 Phase measurement by intercepts
10 Uncertainty of measurement
11 Test report
Bibliography