GB/T 17506-1998 Electron probe analysis method for corrosion layer of ferrous metals on ships

This standard specifies the electron probe analysis method for the corrosion layer of ferrous metal materials on ships in marine environments. This standard specifies the preparation of samples of ferrous metal corrosion layers on ships, the selection of standard samples, test conditions, analysis methods and the publication of analysis results. This standard is applicable to the analysis of ferrous metal block corrosion samples on ships in marine environments. GB/T 17506-1998 Electron probe analysis method for ferrous metal corrosion layers on ships GB/T17506-1998 Standard download decompression password: www.bzxz.net

ICS 37-020
National Standard of the People's Republic of China
GB/T17506—1998
The method of electron probe microanalysis ascorrosive layer on ferrous metals of shipPublished on October 16, 1998www.bzxz.net
Implemented on July 1, 1999
Published by the State Administration of Quality and Technical Supervision
WGB/T17506—1998
This standard is the method of electron probe microanalysis ascorrosive layer on ferrous metals of lead ship in marine environment. This standard is the first national standard. The method of selecting the standard sample in the standard is to check the stability of the instrument. It is implemented in accordance with the relevant provisions of GB/T15074. The methods and data used in the standard are based on decades of research and practice of domestic and foreign peers and have been verified as the source. Some special methods adopted in the standard are proposed based on the experience of domestic and foreign counterparts and combined with the practice in our work. Appendix A of this standard is the appendix of the standard.
This standard is proposed by the National Microbeam Analysis Standardization Technical Committee. This standard is under the jurisdiction of the National Microbeam Analysis Standardization Technical Committee. This standard is drafted by the Seventh Research Institute of the Seventh Research Institute of China State Shipbuilding Corporation. The main drafter of this standard is Xu Kunzhao.
This standard is entrusted to the National Microbeam Analysis Standardization Technical Committee for interpretation. W1 Scope
National Standard of the People's Republic of China
The method of electron probe microanalysis ascorrosive layer on ferrours metals of shpGB/T17506—1998
This standard specifies the electron probe analysis method for the corrosion layer of non-ferrous metal materials in marine environment. This standard specifies the preparation of samples for corrosion of ship metals, sample selection, test conditions, analysis methods, and analysis results and distribution.
This standard is applicable to the analysis of ferrous metal block corrosion samples of ships in marine environments. 2 Referenced standards
The following standards contain provisions that constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. Parties using this standard should consider the possibility of using the latest versions of the following standards. GB/T4930—1993 General technical conditions for standard samples for electron probe analysis GB/T15074—1901 Standard method for electroprobe analysis 3 General terms
3.1 Corrosive medium
Corrosive medium, also known as corrosive agent, is a substance that comes into contact with a given metal and causes corrosion. 3.2 Corrosion test
The test product has sufficient adhesion and can be polished. 3.3 Corrosion
The corrosion surface layer, corrosion inner layer and corrosion transition layer are formed. 3.4 Corrosion surface layer
The contact layer between the corroded metal and the corrosive medium. This layer can obtain information about the corrosive medium. 3.5 Corrosion inner layer
The layer of corrosion products formed by the action of the corroded metal and the corrosive medium. This layer can obtain information about the corrosion products. 3.6 Corrosion transition layer
The transition layer between the corrosion inner layer and the corrosion matrix. This layer can obtain the corrosion morphology characteristics. 4 Method summary
On the specimen corroded in the marine environment, at the analyzed part, the sample is cut vertically from the corrosion layer and removed and polished to obtain the gold sample. The composition elements of the corrosion layer are analyzed by electron probe spectrometer, and the unique morphological characteristics of the corrosion transition layer are observed by secondary electron image and backscattered electron image, which provide necessary basis for determining the corrosion quality, the type of corrosion products and the type of morphological characteristics. Approved by the State Administration of Quality and Technical Supervision on October 16, 1998 and implemented on July 1, 1999
W5 Instruments and materials
GH/T 17506—1998
5.1 Instruments and equipment
5.1.1 Scanning electron microscope with electron probe or spectrometer 5.1.2 Vacuum spray mirror or spectrometer
5.1.3 Polishing machine and polishing machine,
5.1.4 Metallographic sample embedding machine
5.1.5 Ultrasonic cleaning machine,
5.1.6 Optical microscope.
5.1.7 Dryer.
5-1.8 Infrared baking lamp
52 Materials
5.2.1 Mosaic materials
All materials that do not contain sulfur or chlorine. 5.2.2 Reagents
Evaporated water (exactly deionized water), anhydrous acetylene glycol, etc. 5.3 Others
Small wooden shovel, sterile liquid, etc.
6 Standard samples
6-1 National standard samples with similar composition to the test sample shall be given priority. If there is any difference, the national standard samples shall be selected according to the provisions of GB/T-15074. 6.2 When determining the gold-containing oxides in the system, the recommended samples are trioxide (O2), triiron (Y-10Cr2O3), trioxide (Y-10NiO3), tin oxide (Y-18CnO) and other national standard samples. When determining the gold-containing oxides, it is recommended to use K-FeS2, K-4Cs2O3, and sintered metal oxide (K-18CnO).
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