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GB/T 41076-2021 English PDF

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GB/T 41076-2021: Microbeam analysis - Electron backscatter diffraction - Quantitative determination of austenite in steel
Status: Valid
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GB/T 41076-2021English289 Add to Cart 3 days [Need to translate] Microbeam analysis - Electron backscatter diffraction - Quantitative determination of austenite in steel Valid GB/T 41076-2021

PDF similar to GB/T 41076-2021


Standard similar to GB/T 41076-2021

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Basic data

Standard ID GB/T 41076-2021 (GB/T41076-2021)
Description (Translated English) Microbeam analysis - Electron backscatter diffraction - Quantitative determination of austenite in steel
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G04
Word Count Estimation 14,168
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 41076-2021: Microbeam analysis - Electron backscatter diffraction - Quantitative determination of austenite in steel


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Microbeam analysis -- Electron backscatter diffraction -- Quantitative determination of austenite in steel ICS 71:040:40 CCSG04 National Standards of People's Republic of China Microbeam Analysis Electron Backscatter Diffraction Quantitative Analysis of Austenite in Steel Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method overview 2 5 Device 2 6 Sampling and sample preparation 3 7 Measurement step 3 8 Data processing 4 9 Inspection report 6 Appendix A (Informative) Example 7 of EBSD Quantitative Analysis of Austenite in TRIP590 Steel

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1 Structure and Drafting Rules of Standardization Documents" drafted: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Microbeam Analysis Standardization Technical Committee (SAC/TC38): This document was drafted by: Shougang Group Co:, Ltd:, Oxford Instruments Technology (Shanghai) Co:, Ltd:, General Iron and Steel Research Institute: The main drafters of this document: Meng Yang, Ju Xinhua, Cui Guibin, Yang Xiaopeng, Li Jikang, Zhang Yucheng, Chen Ying, Yin Lixin, Ren Qun, Yan Chunlian, Qiqi, Jia Huiping: Microbeam Analysis Electron Backscatter Diffraction Quantitative Analysis of Austenite in Steel

1 Scope

This document specifies the measurement of austenite in steel by electron backscatterdiffraction (EBSD) method: Methods, equipment, sampling and sample preparation, measurement procedures, data processing and inspection reports for integration and morphology: This document is applicable to the analysis of medium and low carbon steels and medium and low carbon alloy steels containing austenite with a grain size above 50 nm: This document is not applicable to the analysis of austenite with a grain size smaller than 50 nm, which will seriously affect the quantification The accuracy of the analysis results: NOTE: The lower grain size limit is the smallest observable austenite grain size: The lower grain size limit depends on equipment conditions and operating parameters:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 13298 Metal Microstructure Test Method GB/T 19501 Microbeam Analysis General Rules for Electron Backscatter Diffraction Analysis Methods GB/T 23414 Microbeam Analysis Scanning Electron Microscopy Terminology GB/T 30067 Metallographic Terminology GB/T 30703 Microbeam Analysis Electron Backscatter Diffraction Orientation Analysis Method Guidelines GB/T 34172 Microbeam Analysis Electron Backscatter Diffraction Phase Analysis Method for Metals and Alloys GB/T 38532 Microbeam Analysis Electron Backscatter Diffraction Determination of Average Grain Size YB/T 4377 Electrolytic Polishing Method of Metal Specimens

3 Terms and Definitions

GB/T 19501, GB/T 23414, GB/T 30067, GB/T 30703, GB/T 34172 and GB/T 38532 as defined and below Listed terms and definitions apply to this document: 3:1 Equivalent circle diameter equivalentcirclediameter; ECD The diameter of the circle equivalent to the grain cross-sectional area: 3:2 aspect ratio The ratio of the short axis to the long axis of the grain cross-section fitting ellipse: Note 1: Also known as the elongation of the grain: Note 2: The value range of the aspect ratio is 0~1: Note 3: There are various methods for ellipse fitting of grain sections, and the obtained aspect ratios are slightly different:

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