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Homepage>BS Standards>71 CHEMICAL TECHNOLOGY>71.040 Analytical chemistry>71.040.50 Physicochemical methods of analysis>BS ISO 13067:2020 Microbeam analysis. Electron backscatter diffraction. Measurement of average grain size
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immediate downloadReleased: 2020-07-17
BS ISO 13067:2020 Microbeam analysis. Electron backscatter diffraction. Measurement of average grain size

BS ISO 13067:2020

Microbeam analysis. Electron backscatter diffraction. Measurement of average grain size

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Standard number:BS ISO 13067:2020
Pages:36
Released:2020-07-17
ISBN:978 0 580 51101 1
Status:Standard
DESCRIPTION

BS ISO 13067:2020


This standard BS ISO 13067:2020 Microbeam analysis. Electron backscatter diffraction. Measurement of average grain size is classified in these ICS categories:
  • 71.040.50 Physicochemical methods of analysis

This document describes procedures for measuring average grain size derived from a two-dimensional polished cross-section using electron backscatter diffraction (EBSD). This requires the measurement of orientation, misorientation and pattern quality factor as a function of position in the crystalline specimen[ 1]. The measurements in this document are made on two dimensional sections. The reader should note carefully the definitions used (3.3) which draw a distinction between the measured sectional grain sizes, and the mean grain size which can be derived from them that relates to the three dimensional grain size.

NOTE 1

While conventional methods for grain size determination using optical microscopy are well-established, EBSD methods offer a number of advantages over these techniques, including increased spatial resolution and quantitative description of the orientation of the grains.

NOTE 2

The method also lends itself to the measurement of the grain size of complex materials, for example those with a significant duplex content.

NOTE 3

The reader is warned to interpret the results with care when attempting to investigate specimens with high levels of deformation.