GB/T 36165-2018 English PDF

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GB/T 36165-2018: Determination of average grain size of metal -- Electron backscatter diffraction (EBSD) method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36165-2018	239	Add to Cart	3 days	Determination of average grain size of metal -- Electron backscatter diffraction (EBSD) method	Valid

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Basic data

Standard ID: GB/T 36165-2018 (GB/T36165-2018)
Description (Translated English): Determination of average grain size of metal -- Electron backscatter diffraction (EBSD) method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H24
Classification of International Standard: 77.040.99
Word Count Estimation: 12,194
Date of Issue: 2018-05-14
Date of Implementation: 2019-02-01
Regulation (derived from): National Standards Announcement No. 6 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36165-2018: Determination of average grain size of metal -- Electron backscatter diffraction (EBSD) method

---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.
(Determination of the average grain size of metal Electron backscatter diffraction (EBSD) method) ICS 77.040.99 H24 National Standards of People's Republic of China Determination of average grain size of metals by electron backscatter diffraction (EBSD) method Electronbackscatterdiffraction (EBSD) method Published on.2018-05-14 Implementation of.2019-02-01 State market supervision and administration China National Standardization Administration issued

Content

Foreword III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 2 5 equipment 2 6 sampling 3 7 sample preparation 3 8 Calibration and Verification 3 9 Measurement step 3 10 Inspection Report 6 Appendix A (Normative Appendix) Calculate grain size level 7 based on average equal circle diameter

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). This standard was drafted. Shougang Group Co., Ltd., Metallurgical Industry Information Standards Institute, Jiangsu Shagang Iron and Steel Research Institute Co., Ltd. Jiangsu Shagang Group Co., Ltd. The main drafters of this standard. Yin Lixin, Yan Xinhua, Cui Guibin, Yan Yan, Meng Yang, Ren Qun, Yan Chunlian, Wu Yuanyuan, Lin Taozhu, Hao Jingli, Zhang Wei, Wen Juan, Hu Xianjun.

Introduction

The EBSD method of this standard divides the grains according to the crystal orientation and is applicable to all crystal structure types. The EBSD method of this standard is suitable for metal materials whose grain boundaries are difficult to display by conventional metallographic methods. The EBSD method of this standard has higher resolution than the metallographic method and is suitable for metal materials with fine grain. This standard is also applicable to the quantitative analysis of the average grain size of the main phase structure of the composite material. Determination of average grain size of metals by electron backscatter diffraction (EBSD) method

1 Scope

This standard specifies the principle, equipment, sampling, sample preparation, calibration and method for the determination of grain size by electron backscatter diffraction (EBSD). Verification and measurement steps. This standard applies to the measurement of the average grain size of a fully recrystallized polycrystalline metal material. Others can produce high quality and high calibration rate electronic back The crystal material of the scattering diffraction pattern can be performed by referring to this method.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 13298 metal microstructure inspection method GB/T 19501 Microbeam analysis method for electron backscatter diffraction analysis GB/T 27788 Microbeam Analysis Scanning Electron Microscope Image Magnification Calibration Guide GB/T 30067 Metallographic terminology Electrolytic polishing method for YB/T 4377 metal sample

3 Terms and definitions

The following terms and definitions as defined in GB/T 19501 and GB/T 30067 apply to this document. 3.1 Electron backscatter diffraction electronbackscatterdiffraction; EBSD The crystal structure, orientation and phase were determined by scanning the electron beam in a scanning electron microscope to determine the crystal structure, orientation and phase of the Kikuchi diffraction pattern excited by the surface of the sample (about 70°). The method of closing information. 3.2 Electron backscatter diffraction pattern EBSDpattern The pattern composed of the Kikuchi diffraction band can determine the type and orientation of the crystal in the excitation region according to the geometric characteristics of the diffraction pattern. 3.3 (crystal) orientation The relationship between the crystal coordinate system and the sample coordinate system. For example, in a cubic system, the three crystal axes of the crystal [100], [010] and [001] The relative orientation of the sample coordinate system such as the rolling direction, transverse direction and normal direction of the rolled sheet. Note. Crystal orientation can be described in a variety of ways such as Euler angles, directional cosine matrices, or rotated (Rodrigues) vectors. 3.4 Orientation misorientation The rotational relationship of the orientation of one data point relative to the orientation of another data point, the minimum angle of rotation that causes the two crystal lattices to completely coincide. ......

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