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Homepage>BS Standards>71 CHEMICAL TECHNOLOGY>71.040 Analytical chemistry>71.040.50 Physicochemical methods of analysis>21/30398224 DC BS ISO 23749. Microbeam analysis. Electron backscatter diffraction. Quantitative determination of austenite in steel
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21/30398224 DC BS ISO 23749. Microbeam analysis. Electron backscatter diffraction. Quantitative determination of austenite in steel

21/30398224 DC

BS ISO 23749. Microbeam analysis. Electron backscatter diffraction. Quantitative determination of austenite in steel

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Standard number:21/30398224 DC
Pages:22
Released:2021-05-17
Status:Draft for Comment
DESCRIPTION

21/30398224 DC


This standard 21/30398224 DC BS ISO 23749. Microbeam analysis. Electron backscatter diffraction. Quantitative determination of austenite in steel is classified in these ICS categories:
  • 71.040.50 Physicochemical methods of analysis

This document specifies procedures for quantitative analysis of austenite in steel using electron backscatter diffraction (EBSD).This document is mainly applied in low and medium carbon steels , low and medium carbon alloy steels.

This document applies to analyze austenite with grain size larger than 50 nm. This method is not applicable to quantify austenite with grain size smaller than 50 nm, which could significantly affect the accuracy of the analysis results.

NOTE 1

The size limit is strongly dependent both on the instrument and the instrument operating parameters.

NOTE 2

The size limit is the minimum grain size of the detectable austenite.