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A kind of metallographic corrosion solution and metallographic corrosion method of zirconium-based alloy

A zirconium-based alloy and metallographic corrosion technology, which is applied in the field of zirconium-based alloy metallographic corrosion solution and metallographic corrosion, can solve the problems of low corrosion efficiency of zirconium-based alloy, poor metallographic sample effect, etc. The effect of high corrosion efficiency

Active Publication Date: 2019-11-15
GEER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing metallographic corrosion solution has low corrosion efficiency for zirconium-based alloys, and the metallographic sample obtained after corrosion is not effective

Method used

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  • A kind of metallographic corrosion solution and metallographic corrosion method of zirconium-based alloy
  • A kind of metallographic corrosion solution and metallographic corrosion method of zirconium-based alloy
  • A kind of metallographic corrosion solution and metallographic corrosion method of zirconium-based alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Use a 100ml graduated cylinder to measure 80ml of deionized water and put it in a plastic beaker, use a 10ml plastic graduated cylinder to measure 5ml of hydrofluoric acid, and use a 10ml glass graduated cylinder to measure 5ml of sulfuric acid and 10ml of nitric acid respectively, and the measured hydrofluoric acid , sulfuric acid and nitric acid were poured into a beaker filled with deionized water, and stirred for 30 seconds until uniform, to obtain zirconium-based alloy metallographic etching solution A1.

[0058] (2) Completely immerse the ground and polished zirconium-based alloy in the zirconium-based alloy metallographic corrosion solution A1 obtained in step (1), and take out the zirconium-based alloy after soaking for 30 seconds.

[0059] (3) Rinse the surface of the zirconium-based alloy taken out in step (2) with deionized water for 40 seconds, dry it, and then wipe the surface of the sample with absorbent cotton with alcohol to obtain a zirconium-based a...

Embodiment 2

[0062] (1) Measure 60ml of deionized water with a 100ml graduated cylinder and place it in a plastic beaker, measure 10ml of hydrofluoric acid with a 10ml plastic graduated cylinder, measure 10ml of sulfuric acid with a 10ml glass graduated cylinder, and measure 20ml of nitric acid with a 25ml glass graduated cylinder. Measured hydrofluoric acid, sulfuric acid and nitric acid were poured into a beaker filled with deionized water, and stirred for 30 seconds until uniform, to obtain a zirconium-based alloy metallographic corrosion solution A2.

[0063] (2) Completely immerse the ground and polished zirconium-based alloy in the zirconium-based alloy metallographic corrosion solution A2 obtained in step (1), and take out the zirconium-based alloy after soaking for 30 seconds.

[0064] (3) Rinse the surface of the zirconium-based alloy taken out in step (2) with deionized water for 40 seconds, dry it, and then wipe the surface of the sample with absorbent cotton with alcohol to obta...

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Abstract

The invention provides zirconium base alloy phase corrosion liquid and a metal phase corrosion method. The zirconium base alloy phase corrosion liquid comprises water, at least 2 wt% of hydrofluoric acid, at least 8 wt% of sulfuric acid and at least 8 wt% of nitric acid. One of the purposes of the zirconium base alloy phase corrosion liquid is used for preparing a zirconium base alloy phase sample.

Description

technical field [0001] The invention relates to the field of metallographic sample preparation, in particular to a zirconium-based alloy metallographic corrosion solution and a metallographic corrosion method. Background technique [0002] Zirconium-based alloy refers to an alloy with zirconium as the main element. Usually, the mass fraction of zirconium in the zirconium-based alloy is greater than or equal to 50%. Zirconium-based alloys have strong glass-forming ability and a wide supercooled liquid phase region, which is conducive to the easy preparation of good-quality bulk alloys with relatively simple equipment. In addition, zirconium-based alloys have excellent mechanical properties and are widely used in aerospace, golf and other fields. [0003] The performance of the zirconium-based alloy can be detected by observing the metallographic sample of the zirconium-based alloy. The existing metallographic corrosion solution has low corrosion efficiency to the zirconium...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/32C23F1/26
CPCC23F1/26G01N1/32
Inventor 孟萌萌刘泽文肖宜仰
Owner GEER TECH CO LTD
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