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Method for displaying three-dimensional structure of silicon-rich phase in aluminum-silicon coating by metallographic method

A three-dimensional structure, aluminum-silicon technology is applied in the field of metallographic method to display the three-dimensional structure of the silicon-rich phase in the aluminum-silicon coating, which can solve the problems of staying in the phase structure of the aluminum-silicon coating, not finding the three-dimensional phase structure, and achieving low detection costs. Effect

Active Publication Date: 2021-06-11
TANGSHAN IRON & STEEL GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the phase structure of aluminum-silicon coating mainly stays in the display of the phase structure of the plane and cross section, and no method for displaying the three-dimensional phase structure has been found.

Method used

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  • Method for displaying three-dimensional structure of silicon-rich phase in aluminum-silicon coating by metallographic method
  • Method for displaying three-dimensional structure of silicon-rich phase in aluminum-silicon coating by metallographic method
  • Method for displaying three-dimensional structure of silicon-rich phase in aluminum-silicon coating by metallographic method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] A metal phase method showing a method of silicon-rich phase in an aluminum silicon coating comprising a sample, chemical corrosion, a microscope observation, in particular:

[0030] (1) Sample: Take the aluminum silicon coating steel plate (1500 + AS card), cut a sample of 15 mm × 15 mm, put the surface level of the sample coating into the inlay, the inlaid sample coating surface is completely revealed Then the polishing treatment is performed, specifically: sequentially sprayed water and 2.5 μm high-efficiency gold phase polishing agent on the 200 mm pressure-sensitive rubber waters, and then the polishing machine rotation is 300 rpm and the polishing treatment 30s.

[0031] (2) Chemical Corrosion: Put the sample prepared by step (1) into the corrosion liquid, the etching solution is aqueous hydrochloride having a volume concentration of 10% and a mass concentration of 5% aqueous solution of aqueous solution of aqueous solution 1: 1 The volume ratio is formulated, the corr...

Embodiment 2

[0035] A metal phase method showing a method of silicon-rich phase in an aluminum silicon coating comprising a sample, chemical corrosion, a microscope observation, in particular:

[0036] (1) Sample: Take the aluminum-coated steel sheet (DC52D + AS number), cut 20 mm × 20 mm sample, put the surface level of the sample coating in the inlay, the inlaid sample coating surface is completely revealed Then, the polishing treatment is performed, specifically: sequentially sprayed water and 0.5 μm high-efficiency gold phase polishing agent onto a 250 mm pressure-sensitive rubber, then the polishing machine is 600 rpm, and then the polishing treatment is 20s.

[0037] (2) Chemical Corrosion: Put the sample prepared by step (1) into the corrosion liquid, the etching solution is aqueous hydrochloride having a volume concentration of 12% and a molecular solution of 8% aqueous solution of aqueous sodium chloride. 1: 1 The volume ratio is formulated, the corrosion time is 10 s;

[0038] (3) Mi...

Embodiment 3

[0041] A metal phase method showing a method of silicon-rich phase in an aluminum silicon coating comprising a sample, chemical corrosion, a microscope observation, in particular:

[0042] (1) Sampling: Take the aluminum silicon coating steel plate (DC51D + AS number), cut 10 mm × 10 mm sample, put the surface level of the sample coating in the inlay, the surface of the sample coating surface is completely revealed Then, the polishing treatment is performed, specifically: sequentially spraying water and 1.5 μm high-efficiency gold phase polishing agent on a pressure-sensitive adenching polishing cloth, and then polishing the polishing machine with 450 rev / min.

[0043] (2) Chemical corrosion: The sample prepared by step (1) is placed in the corrosive liquid, the etching solution is aqueous hydrochloric acid having a volume concentration of 11%, a solution of 6.5% aqueous solution of aqueous solution of 6.5%. Press 1: 1. The volume ratio is formulated, the corrosion time is 15 s;...

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Abstract

The invention belongs to the technical field of metal coating detection, and provides a method for displaying a three-dimensional structure of a silicon-rich phase in an aluminum-silicon coating by a metallographic method, which comprises the steps of sample preparation, chemical corrosion and microscope observation, and specifically comprises the following steps: (1) sample preparation: taking an aluminum-silicon coating steel plate, cutting a part of the aluminum-silicon coating steel plate as a sample, and then sequentially carrying out embedding and polishing treatment on the sample; (2) chemical corrosion: putting the sample prepared in the step (1) into a corrosive liquid for chemical corrosion, wherein the corrosive liquid is prepared from a hydrochloric acid aqueous solution and a sodium chloride aqueous solution; and (3) microscope observation: after the chemical corrosion is completed, washing and drying the sample, and observing by using a ZISS metallographic microscope. According to the method provided by the invention, a complete and clear three-dimensional structure of the silicon-rich phase can be obtained, the growth condition of the silicon-rich phase can be fully displayed, and the method has the characteristics of low detection cost, rapidness and simplicity.

Description

Technical field [0001] The present invention belongs to the field of metal coating detection, and more particularly to a method of displaying a silicon-rich phase in an aluminum silicon coating. Background technique [0002] Because the aluminized silicon coated steel plate has good antioxidant and corrosion resistance, the research and development and application of the product are increasingly improved. The requirements for their physical properties are also increasing. At present, the study of the aluminized silicon coating phase structure mainly stays on the phase structure of the plane and the cross section, and the method of displaying a stereo phase structure is not found. The three-dimensional morphology of the study phase can be better studied, and it can also be visually reflecting its production process. [0003] The method provided by the present invention has created a three-dimensional morphological analysis of the coating phase structure, and the study of the coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/32G01N21/84
CPCG01N1/32G01N21/84
Inventor 魏焕君邝霜何先勇赵江林贾慧淑孙晓梅崔丽丽唐学斌尹芳
Owner TANGSHAN IRON & STEEL GROUP
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