ISO 13067:2020
Current
The latest, up-to-date edition.
Microbeam analysis Electron backscatter diffraction Measurement of average grain size
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English
07-15-2020
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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.
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NEN-ISO 13067:2020 | Identical |
| BS ISO 13067:2020 | Identical |
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