ISO 3887:2023
Steels — Determination of the depth of decarburization
This document defines the decarburization and specifies three methods of measuring the depth of decarburization of steel products.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling
5 Measuring methods
5.1 General
5.2 Metallographic method
5.2.1 General
5.2.2 Selection and preparation of the sample
5.2.3 Measurement
5.3 Methods for measuring the micro-indentation hardness
5.3.1 General
5.3.2 Selection and preparation of the sample
5.3.3 Measurement
5.4 Methods of determination of the carbon content
5.4.1 General
5.4.2 Chemical analysis
5.4.3 Spectrographic analysis
5.4.4 Interpretation of the results (chemical and spectrographic methods)
5.4.5 Electron probe microanalysis (EPMA)
5.4.6 Glow discharge optical emission spectrometry (GDOES)
6 Test report
Annex A (informative) Examples of typical decarburization microstructure
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling
5 Measuring methods
5.1 General
5.2 Metallographic method
5.2.1 General
5.2.2 Selection and preparation of the sample
5.2.3 Measurement
5.3 Methods for measuring the micro-indentation hardness
5.3.1 General
5.3.2 Selection and preparation of the sample
5.3.3 Measurement
5.4 Methods of determination of the carbon content
5.4.1 General
5.4.2 Chemical analysis
5.4.3 Spectrographic analysis
5.4.4 Interpretation of the results (chemical and spectrographic methods)
5.4.5 Electron probe microanalysis (EPMA)
5.4.6 Glow discharge optical emission spectrometry (GDOES)
6 Test report
Annex A (informative) Examples of typical decarburization microstructure