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Corrosive agent for displaying TC4 metallographic structure and preparation method and use method

A metallographic structure display and metallographic structure technology, applied in the field of TC4 metallographic structure display etchant and preparation, can solve the problems that the metallographic structure cannot be displayed, and the α grain size cannot be measured, so as to improve the measurement accuracy and rating accuracy degree, accurate organization rating, and obvious effect

Pending Publication Date: 2022-01-11
新疆湘润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can obtain clear α and β two-phase structure of TC4 plate, showing that the grain boundary of α phase is clear, avoiding the problems that the metallographic structure cannot be visualized and the α grain size cannot be measured due to corrosion and improper observation

Method used

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  • Corrosive agent for displaying TC4 metallographic structure and preparation method and use method
  • Corrosive agent for displaying TC4 metallographic structure and preparation method and use method
  • Corrosive agent for displaying TC4 metallographic structure and preparation method and use method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] (1) A kind of preparation of etchant for TC4 metallographic structure display, concrete steps are as follows:

[0038] Prepare metallographic structure etchant: first, prepare saturated oxalic acid aqueous solution (50%), at room temperature, measure the deionized water of 500ml and join in the glass beaker of 1000ml, weigh the analysis pure oxalic acid crystal of 250g, then while stirring Slowly add it to the beaker, stir well, then place it until the solution is clear and ready for use;

[0039] Then, at room temperature, measure 35ml of deionized water and 30ml of the supernatant of saturated oxalic acid aqueous solution with a graduated cylinder, then pour them into a 100ml beaker in turn, stir evenly, and then absorb 5ml of hydrofluoric acid and 5ml of nitric acid with a Basset pipette. Slowly add it into a beaker, stir to make it evenly mixed, and obtain the metallographic structure etchant.

[0040] (2) The method of using the above-mentioned corrosive agent, th...

Embodiment 2

[0070] (1) A kind of preparation of etchant for TC4 metallographic structure display, concrete steps are as follows:

[0071] Prepare metallographic structure etchant: first, prepare saturated oxalic acid aqueous solution (50%), at room temperature, measure the deionized water of 500ml and join in the glass beaker of 1000ml, weigh the analysis pure oxalic acid crystal of 250g, then stir while Slowly add to the beaker, stir well, then place until the solution is clear and ready for use;

[0072] Then, at room temperature, measure 40ml of deionized water and 28ml of supernatant of saturated oxalic acid aqueous solution with a graduated cylinder, then pour them into a 100ml beaker in turn, stir evenly, and then absorb 8ml of hydrofluoric acid and 8ml of nitric acid respectively with a Basset pipette. Slowly add it into a beaker, stir to make it evenly mixed, and obtain the metallographic structure etchant.

[0073] (2) The method of using the above-mentioned corrosive agent, the...

Embodiment 3

[0081] (1) A kind of preparation of etchant for TC4 metallographic structure display, concrete steps are as follows:

[0082] Prepare metallographic structure etchant: first, prepare saturated oxalic acid aqueous solution (50%), at room temperature, measure the deionized water of 500ml and join in the glass beaker of 1000ml, weigh the analysis pure oxalic acid crystal of 250g, then stir while Slowly add to the beaker, stir well, then place until the solution is clear and ready for use;

[0083] Then, at room temperature, measure 45ml of deionized water and 38ml of supernatant of saturated oxalic acid aqueous solution with a graduated cylinder, and then pour them into a 100ml beaker in turn and stir evenly; draw 5ml of sulfuric acid with a Basset pipette, stir the solution and slowly Add it into the beaker, stir it evenly, and let it stand for 10 minutes; then use a Basset pipette to absorb 10ml of hydrofluoric acid and 10ml of nitric acid, slowly add it to the beaker in turn, ...

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Abstract

The invention belongs to the technical field of metallographic structure display of metal materials, and particularly discloses a corrosive agent for displaying a TC4 metallographic structure and a preparation method and a use method. The method mainly comprises the following steps of (1), preparing a metallographic structure corrosive agent; (2), slicing a TC4 plate; (3), pretreating the TC4 plate; and (4), under a microscope, carrying out metallographic structure observation on the TC4 plate by adopting a polarization and differential interference phase contrast mode. According to the method, the metallographic structure of the TC4 plate can be well obtained, and the problems that in the prior art, due to corrosion limitation and improper observation modes, the grain boundary of the metallographic structure of the TC4 plate is not clear, the two-phase structure cannot be distinguished, and the alpha grain size cannot be measured are solved.

Description

technical field [0001] The invention belongs to the technical field of metallographic structure display of metal materials, and in particular relates to a TC4 etchant for metallographic structure display, a preparation method and a use method. Background technique [0002] Nowadays, with the continuous advancement of industrial technology in the fields of aviation, aerospace, weapons and ships, correspondingly, the requirements for the lightweight, high performance and long life of metal materials are also getting higher and higher. Steel, aluminum, magnesium, etc. The properties of metals and their alloys have gradually failed to meet the actual needs of these fields. [0003] Titanium alloy has the advantages of excellent corrosion resistance, high strength ratio, high impact toughness, high fatigue strength and no magnetism, which can meet the lightweight and high performance requirements of contemporary military industry for weapons and equipment, precisely because titan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/26G01N1/32G01N21/84G01N1/28G01B11/24
CPCC23F1/26G01N1/32G01N21/84G01N1/28G01N1/286G01B11/2441G01N2001/2866
Inventor 董晓锋陈皓高生辉陈乃川杨再江杨学新叶红川赵小龙岳旭周雪红
Owner 新疆湘润新材料科技有限公司
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