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GB/T 34895-2017 English PDF

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GB/T 34895-2017: General rules for metallographic examination of heat treatment
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PDF similar to GB/T 34895-2017


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Basic data

Standard ID GB/T 34895-2017 (GB/T34895-2017)
Description (Translated English) General rules for metallographic examination of heat treatment
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J36
Classification of International Standard 25.200
Word Count Estimation 19,163
Date of Issue 2017-11-01
Date of Implementation 2018-05-01
Regulation (derived from) National Standard Announcement 2017 No. 29
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34895-2017: General rules for metallographic examination of heat treatment

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General rules for metallographic examination of heat treatment ICS 25.200 J36 National Standards of People's Republic of China Heat treatment Metallographic examination General Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 metallographic examiner 2 5 related equipment 2 6 test process 2 7 on-site metallographic examination 6 8 inspection report 6 9 Safety and Environmental Protection 6 Appendix A (informative) sample polished with sandpaper marking and particle size composition 7 Appendix B (informative) Polishing fabric, polishing abrasive and chemical polishing optional 8 Appendix C (Informative) Common chemical attack reagents 10 Appendix D (Informative) Common Electrolytic Erosion Reagents and Specifications 12 Appendix E (informative) Part of the heat treatment process metallographic examination standards 13 Appendix F (Informative) Erosion agents preparation and use of safety matters 16

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Standardization Technical Committee heat treatment (SAC/TC75) and focal point. The main drafting units of this standard. National Daojian and daily metal tools Quality Supervision and Inspection Center, Beijing Institute of Electrical and Mechanical Services, Shanghai Machinery Manufacturing Technology Institute Co., Ltd., Beijing Special Equipment Testing Center, Dalian Jiaotong University, Tianjin Heat Treatment Testing Center Co., Ltd., long Spring Track Co., Ltd., Jiangsu Fengdong Heat Treatment and Surface Modification Engineering Research Co., Ltd., Guangdong Shichuang Metal Technology Co., Ltd. Limited, Beijing Heng Zhiyou Technology Development Center. The main drafters of this standard. Bi Geping, Li Qiao, Ren praise, Tan Wenhua, Lei Min, Li Zhiqiang, Wen Lian, Song Baojing, Shi Yousen, Dong Xiaohong, To Jianhua, Huang Wen Niu, Chen Xiaoyu. Heat treatment Metallographic examination General

1 Scope

This standard specifies the workpiece before and after heat treatment and heat treatment process metallographic examination of personnel, related equipment, sample sampling, sample preparation, organization Display, tissue test, metallographic photo production, the original records, sample disposal, metallurgical site inspection, inspection reports and safety and environmental protection and other technical requirements. This standard applies to the optical metallographic microscope heat treatment metallographic examination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 7232 metal heat treatment process terminology GB/T 13298 metal microstructure test method GB/T 15749 quantitative metallographic determination GB/T 17455 non-destructive testing of the surface of the metallographic complex type technology GB/T 27476.1 Testing laboratory safety Part 1. General GB/T 27476.2 Testing laboratory safety Part 2 Electrical factors GB/T 27476.3 Testing laboratory safety Part 3. Mechanical factors GB/T 27476.5 testing laboratory safety Part 5. Chemical factors YB/T 4377 metal sample electrolytic polishing method

3 Terms and definitions

GB/T 7232 as defined in the following terms and definitions apply to this document. 3.1 Metallographic examination metalographicexamination Metallographic microscopy of metal or alloy macrostructure or microstructure analysis to determine the size of a variety of organizations, the number of Volume, shape and distribution characteristics of the method. 3.2 Metallographic complex technology metalographicreplica The complex (negative) technique of obtaining the microstructure of the metal parts of a component by a method of bonding a prefabricated composite material to a sample. [DL/T 652-1998] 3.3 Quantitative metallographic quantitativemetalography A class of metallographic techniques for quantitatively characterizing the microstructure of materials using stereology and image analysis techniques. Note. Quantitative metallography includes the determination of grain size, the content of each phase, the size, number, shape and distribution characteristics of the second phase and so on. 3.4 Image analysis imageanalysis Experimental techniques for extracting quantitative information such as geometric information and optical density from the image.

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