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Electrolysis polishing method for preparing pure titanium and titanium alloy EBSD (electron back-scattered diffraction) sample

An electrolytic polishing and titanium alloy technology, applied in the field of metal material processing, can solve the problems of complicated operation and high cost, and achieve the effects of improving sample quality, good light transmittance, and avoiding electrolyte corrosion.

Inactive Publication Date: 2018-11-13
HUANGHUAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems of complex operation and high cost in the prior art, the present invention provides an electrolysis method for preparing pure titan

Method used

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  • Electrolysis polishing method for preparing pure titanium and titanium alloy EBSD (electron back-scattered diffraction) sample
  • Electrolysis polishing method for preparing pure titanium and titanium alloy EBSD (electron back-scattered diffraction) sample
  • Electrolysis polishing method for preparing pure titanium and titanium alloy EBSD (electron back-scattered diffraction) sample

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1:

[0029] Use wire cutting technology to take a pure titanium flake with a thickness of 0.5mm from the pure titanium sample to be tested, and grind the two sides of the pure titanium flake with 280# and 400# silicon carbide dry sandpaper until its thickness is reduced to 0.28mm. , Grind the side of the obtained pure titanium flakes with 400# silicon carbide dry sandpaper and then use 600#, 800#, 1000# and 1200# silicon carbide dry sandpaper to grind and control its thickness to 0.12mm. Take 3 samples of length x width 5 x 5mm from the obtained pure titanium flakes, grind the burrs of the samples smoothly with 1200# silicon carbide dry sandpaper, and place the pure titanium samples taken out in the sample of the magnetodynamic double jet thinner In the clip, the smoother side of the pure titanium sample is placed on the conductive metal sheet in the sample holder and shields the double nozzle holes on the conductive metal sheet, and a transparent, flexible, acid-c...

Example Embodiment

[0030] Example 2:

[0031] Use wire-cutting technology to take Ti-10V-2Fe-3Al flakes with a thickness of 1mm from the Ti-10V-2Fe-3Al sample to be tested, and use 280# and 400# silicon carbide dry sandpaper to test Ti-10V-2Fe. Grind both sides of the -3Al sheet until its thickness is reduced to 0.25mm. The side of the obtained Ti-10V-2Fe-3Al sheet that has been ground with 400# silicon carbide dry sandpaper is then sequentially used 600#, 800#, 1000# and 1200 #Silicon carbide dry sandpaper to grind and control its thickness to 0.14mm, and then from the Ti-10V-2Fe-3Al flakes obtained after grinding, take 5 samples of length × width 4×5mm, and use 1200# silicon carbide dry sandpaper Grind the burrs of the sample smoothly, and place the removed Ti-10V-2Fe-3Al sample in the sample holder of the magnetodynamic double-jet thinner, where the smoother side of the Ti-10V-2Fe-3Al sample is attached to the sample The conductive metal sheet in the clip is placed and shields the double nozzle...

Example Embodiment

[0032] Example 3:

[0033] Use wire cutting technology to take Ti-20Mo flakes with a thickness of 0.8mm from the Ti-20Mo sample that needs to be observed, and use 280# and 400# silicon carbide dry sandpaper to grind the two sides of the Ti-20Mo flakes until the thickness is reduced. The thickness of the Ti-20Mo flake that has been ground with 400# silicon carbide dry sandpaper is then ground with 600#, 800#, 1000# and 1200# silicon carbide dry sandpaper in turn and the thickness is controlled to 0.1mm. Then take 4 samples of length x width 4 x 4mm from the Ti-20Mo flakes obtained after grinding, grind the burrs of the samples smoothly with 1200# silicon carbide dry sandpaper, and place the taken Ti-20Mo sample on the magnetic double In the sample holder of the spray thinner, the smoother side of the Ti-20Mo sample is placed on the conductive metal sheet in the sample holder and covers the double nozzle holes on the conductive metal sheet, and the thickness is 0.3mm. The acid cor...

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Abstract

The invention relates to the technical field of processing of metal materials, in particular to an electrolysis polishing method for preparing a pure titanium and titanium alloy EBSD (electron back-scattered diffraction) sample. The electrolysis polishing method comprises the following steps of a, selecting a pure titanium or titanium alloy sheet with thickness of 0.5 to 1mm, and respectively grinding both sides of the pure titanium or titanium alloy sheet by 280# and 400# abrasive papers; b, sequentially grinding one surface, ground by the 400# abrasive paper, of the pure titanium or titaniumalloy sheet by 600#, 800#, 1000# and 1200# abrasive papers; c, selecting three to five samples, and grinding and smoothing the burrs of the sample by the 1200# abrasive paper; d, putting the pure titanium or titanium alloy sheet into electrolysis polishing equipment for electrolysis polishing; e, cleaning the pure titanium or titanium alloy sample after electrolysis polishing for the first time;f, cleaning the fetched pure titanium or titanium alloy sample for the second time, fetching out, and blow-drying, so as to obtain the pure titanium and titanium alloy EBSD sample.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to an electrolytic polishing method for preparing pure titanium and titanium alloy EBSD samples, which has the advantages of simple operation, low cost and high backscattered electron diffraction calibration rate of obtained EBSD samples. Background technique [0002] In order to further improve the strength of titanium alloys, the main technical method for quantitatively studying the texture type of titanium alloys and the crystallographic orientation relationship between α-phase and β-phase is Electron Backscatter Diffraction (EBSD). Because this technique has high requirements on the quality of the sample, that is, the surface of the sample is required to be flat, conductive and stress-free, so that the high-quality Kikuchi pattern will appear in such a sample. Therefore, how to quickly prepare EBSD samples of pure titanium and titanium alloys has become an urge...

Claims

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Application Information

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IPC IPC(8): G01N23/20008G01N23/20058G01N23/203
Inventor 王启王银玲张亮刘文富郭晓雷
Owner HUANGHUAI UNIV
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