Foreword

Introduction

1Scope

2Normative references

3Terms and definitions

3.1Terminology associated with EBSD measurement of grain size

3.2Terminology associated with grains and grain boundaries determined via EBSD

3.3Terminology associated within grain size measurement

3.4Terminology associated with data correction and uncertainty of EBSD maps

4Equipment for grain sizing by EBSD

4.1Hardware requirements

4.2Software requirements

5Acquiring the map for grain sizing by EBSD

5.1Specimen preparation

5.2Defining specimen axes

5.3Stage positioning and calibration

5.4Linear calibration

5.5Preliminary examination

5.6Choice of step size

5.7Determination of the level of angular accuracy needed78

5.8Choice of areas to be mapped and map size

5.9Considerations when examining plastically deformed materials

6Analytical procedure

6.1Definition of boundaries

6.1.1Grain boundary angles

6.1.2Handling incomplete boundaries

6.1.3Dealing with special boundaries

6.2Post-acquisition treatment of raw data

6.3Data-cleaning steps

6.4Measurement of sectional grain size

6.5Calculation of average grain size

6.6Representation of data

7Measurement uncertainty

8Reporting of analysis results

Annex AGrain size measurement (informative)

Annex BReproducibility (informative)

Bibliography