Specimen preparation and organization exposure method of metallic phase of zinc and alloy thereof

A technology for metallographic samples and alloys, which is applied in the field of preparation of metallographic samples of zinc and its alloys, preparation of metallographic samples of zinc and its alloys and tissue exposure experiments, which can solve the cost of consumables, working time and the sample preparation process. Satisfactory, etc., to avoid surface tissue deformation, reveal high definition, and easy to operate

Active Publication Date: 2011-07-20
NINGBO POWERWAY ALLOY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has been improved, the cost of consumables for sample preparation, the working time for sample preparation and the sample preparation process are not very satisfactory

Method used

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  • Specimen preparation and organization exposure method of metallic phase of zinc and alloy thereof
  • Specimen preparation and organization exposure method of metallic phase of zinc and alloy thereof
  • Specimen preparation and organization exposure method of metallic phase of zinc and alloy thereof

Examples

Experimental program
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Effect test

example 1

[0026]A piece of sample with a specification of 20mm×20mm was cut with a manual hacksaw on an industrial pure zinc ingot. The specific implementation steps are as follows:

[0027] a. Wet grinding: the sample is first polished with a fine-toothed flat file, using flowing water as a coolant and lubricant, and then mechanically polished;

[0028] b. Mechanical polishing: put the wet ground sample in water containing detergent, wash it in an ultrasonic vibration cleaner, and then perform mechanical polishing for 2 to 5 minutes: the polishing speed is 300r / min; at this time, the polishing liquid is both a coolant and a It is a lubricant; spray the aluminum oxide with particle size of 0.5 μm on the microporous fabric polishing flannelette, transfer it into water and stir it uniformly as a polishing liquid, polish the sample, observe the surface state of the sample under a microscope, and confirm that the surface of the sample is scratched by a file. Chemical polishing after the ma...

example 2

[0032] Cut a piece of sample with a specification of 20mm×20mm on the super pure zinc sample with a manual hacksaw. The specific implementation steps are as follows:

[0033] a. Wet grinding: using running water as coolant and lubricant, the sample is first polished with a fine-toothed flat file, and then mechanically polished;

[0034] b. Mechanical polishing: put the wet ground sample in water containing detergent, wash it in an ultrasonic vibration cleaner, and then perform mechanical polishing for 2 to 5 minutes: the polishing speed is 300r / min; at this time, the polishing liquid is both a coolant and a It is a lubricant; spray the aluminum oxide with particle size of 0.5 μm on the microporous fabric polishing flannelette, transfer it into water and stir it uniformly as a polishing liquid, polish the sample, observe the surface state of the sample under a microscope, and confirm that the surface of the sample is scratched by a file. Chemical polishing after the marks disa...

example 3

[0038] Cut a sample with a size of 20mm×20mm on the ZA4-3 zinc-aluminum alloy sample with a manual hacksaw. The specific implementation steps are as follows:

[0039] a. Wet grinding: using running water as coolant and lubricant, the sample is first polished with a fine-toothed flat file, and then mechanically polished;

[0040] b. Mechanical polishing: put the wet ground sample in water containing detergent, wash it in an ultrasonic vibration cleaner, and then perform mechanical polishing for 2 to 5 minutes: the polishing speed is 200r / min; at this time, the polishing liquid is both a coolant and a It is a lubricant; spray the aluminum oxide with particle size of 0.5 μm on the microporous fabric polishing flannelette, transfer it into water and stir it uniformly as a polishing liquid, polish the sample, observe the surface state of the sample under a microscope, and confirm that the surface of the sample is scratched by a file. Chemical polishing after the marks disappear co...

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Abstract

The invention discloses a specimen preparation and organization exposure method of metallic phase of zinc and alloy thereof. The method comprises the following steps: performing wet grinding with a flat file with fine teeth, performing mechanical polishing, performing chemical polishing and exposing organization, wherein the chemical polishing step adopts the chemical polishing liquid composed ofsulfuric acid, lactic acid, hydrogen peroxide and water; and the organization exposure step adopts the etching agent composed of potassium metabisulfite, sodium sulfate, chromium oxide and water, thus samples for metallographic observation can be successfully prepared. The operation is simple and convenient, the time for sample preparation is short, the consumption of material is low; and the organization exposure definition of the prepared samples is high, thus the method is particularly suitable for the specimen preparation and organization exposure of metallic phase of zinc and alloy thereof.

Description

technical field [0001] The present invention relates to the technical field of zinc and its alloy metallographic sample preparation and tissue exposure experiments, and in particular provides a zinc and its alloy metallographic sample preparation and tissue exposure method, which is suitable for preparing zinc and its alloy metallographic samples . Background technique [0002] As we all know, the mineral reserves, production and consumption of zinc in non-ferrous metals are second only to aluminum and copper, ranking third in the world. Physical properties of zinc: its atomic number is 30, its relative atomic mass is 65.38, and it has a close-packed hexagonal crystal structure. The chemical properties of zinc: Zinc has good corrosion resistance in dry air and rural atmospheric environments, and its corrosion rate is 0.001-0.0001mm / a. In the atmosphere of industrial areas, because water vapor is often acidic, the corrosion resistance of zinc The corrosion rate increases, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/32
Inventor 谢识才谢先娇张红沈明魏建军
Owner NINGBO POWERWAY ALLOY MATERIAL
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