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Wrought magnesium alloy corrosive and preparing method and application of wrought magnesium alloy corrosive

A technology of deformed magnesium alloy and etchant, which is applied in the preparation of test samples and other directions, can solve the problems of incompetence of etchant, reduce experimental efficiency, waste of experimental resources, etc., and achieve the effects of improving safety, improving experimental efficiency and low cost.

Inactive Publication Date: 2018-09-28
HUNAN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Usually, the etchant for magnesium alloys is composed of nitric acid, glacial acetic acid, picric acid, absolute ethanol and water. Since most of the above ingredients have low boiling points and are easy to volatilize, it is difficult to keep the composition and performance stable for a long time. Reconstituted corrosive agen

Method used

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  • Wrought magnesium alloy corrosive and preparing method and application of wrought magnesium alloy corrosive
  • Wrought magnesium alloy corrosive and preparing method and application of wrought magnesium alloy corrosive
  • Wrought magnesium alloy corrosive and preparing method and application of wrought magnesium alloy corrosive

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Embodiment 1

[0039] The wrought magnesium alloy corrosion agent of this embodiment comprises the following components: 1 g oxalic acid, 1 ml sulfuric acid, and 100 ml distilled water.

[0040] The preparation method comprises the following steps:

[0041] Add 100ml of distilled water into the beaker, add 1g of oxalic acid, stir with a glass rod, after the oxalic acid is dissolved, add 1ml of sulfuric acid to the solution and mix well.

[0042] The application of the deformed magnesium alloy corrosion agent of the present embodiment in the observation of the metallographic structure of the magnesium alloy:

[0043] The polished compressed, forged and rolled Mg-3Al-1Zn gold samples were immersed in the chemical etchant mentioned above, and the samples were shaken continuously during the etching process. Gently wipe the surface of the sample; dry the sample with a hair dryer to obtain the metallographic sample of the magnesium alloy to be observed.

Embodiment 2

[0045] The difference between Example 2 and Example 1 is that the experimental objects are Mg-6Al-1Zn alloys in compressed state, forged state and rolled state.

Embodiment 3

[0047] The difference between embodiment 3 and embodiment 1 and embodiment 2 is that the experimental objects are Mg-2Zn-0.45Zr alloys in compressed state, forged state and rolled state.

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Abstract

The invention discloses a wrought magnesium alloy corrosive and a preparing method and application of the wrought magnesium alloy corrosive. The wrought magnesium alloy corrosive comprises the following components including 1 g of oxalic acid, 1 ml+/-0.2 ml of sulfuric acid and 100 ml+/-10 ml of water. The invention further includes a preparing method of the wrought magnesium alloy corrosive. Thepreparing method of the chemical corrosive is simple, the performance is stable, application is wide, cost is low, and the toxic and side effect is small. A magnesium alloy interface, especially twincrystal and recrystallization texture in the wrought magnesium alloy can be corroded rapidly and clearly through the chemical corrosive.

Description

technical field [0001] The invention relates to an etchant for metal materials and a preparation method and application thereof, in particular to a deformed magnesium alloy etchant and a preparation method and application thereof. Background technique [0002] Magnesium alloy is the lightest metal structure material, which has the characteristics of high specific strength, high specific stiffness, good vibration damping ability, excellent thermal conductivity and electrical conductivity, good dimensional stability, electromagnetic shielding and easy recycling. It has important application value and broad application prospects in the fields of aerospace, transportation, weaponry and electronic appliances. During the research and development of magnesium alloys, the performance of the alloy depends on its microstructure, and its microstructure is determined by the composition and processing technology of the alloy. In order to prepare magnesium alloys that meet service perfor...

Claims

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Application Information

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IPC IPC(8): C23F1/22G01N1/32
Inventor 吴远志叶拓刘伟李庆芬邓彬李理
Owner HUNAN INST OF TECH