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Preparation method of 4D printing CuAl-based alloy EBSD sample

A technology of base alloy and sample is applied in the field of preparation of 4D printed CuAl-based alloy EBSD samples to achieve the effect of small particle size, high-efficiency and low-cost preparation, and large polishing area.

Active Publication Date: 2021-07-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the preparation of 4D printed CuAl-based alloy EBSD samples by chemical mechanical polishing.

Method used

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  • Preparation method of 4D printing CuAl-based alloy EBSD sample
  • Preparation method of 4D printing CuAl-based alloy EBSD sample
  • Preparation method of 4D printing CuAl-based alloy EBSD sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Alloy 4D prints CuAl-based alloys, and prepares EBSD samples according to the following steps:

[0040] (1) Cutting: The 4D printed CuAl-based alloy sample is cut by wire cutting method. In this embodiment, the 4D printed CuAl-based alloy to be cut is fixed on the wire cutting machine tool, cut along the section to be analyzed, and the 4D printed CuAl-based alloy sample is cut. The thickness is 1mm.

[0041] (2) Cleaning: Use acetone solution to clean the cut samples to remove metal powder and oil stains remaining on the surface during the cutting process.

[0042] (3) Mounting: use CMR2 conductive cold mounting material to mount the cut sample, and the thickness after mounting is 11mm.

[0043] (4) Grinding: Use 400#, 800#, 1200#, 2000#, 3000# silicon carbide sandpaper to grind the surface of the 4D printed CuAl-based alloy sample in sequence until the sample is visually inspected for no deep scratches. In this embodiment, a grinding and polishing machine is used to ...

Embodiment 2

[0051] Alloy 4D prints CuAl-based alloys, and prepares EBSD samples according to the following steps:

[0052] (1) Cutting: The 4D printed CuAl-based alloy sample is cut by wire cutting method. In this embodiment, the 4D printed CuAl-based alloy to be cut is fixed on the wire cutting machine tool, cut along the section to be analyzed, and the 4D printed CuAl-based alloy sample is cut. The thickness is 1mm.

[0053] (2) Cleaning: Use acetone solution to clean the cut samples to remove metal powder and oil stains remaining on the surface during the cutting process.

[0054] (3) Mounting: use CMR2 conductive cold mounting material to mount the cut samples, and the thickness after mounting is 12mm.

[0055] (4) Grinding: Use 400#, 800#, 1200#, 2000#, 3000# silicon carbide sandpaper to grind the surface of the 4D printed CuAl-based alloy sample in sequence until the sample is visually inspected for no deep scratches. In this embodiment, a grinding and polishing machine is used to...

Embodiment 3

[0063] Alloy 4D prints CuAl-based alloys, and prepares EBSD samples according to the following steps:

[0064] (1) Cutting: The 4D printed CuAl-based alloy sample is cut by wire cutting method. In this embodiment, the 4D printed CuAl-based alloy to be cut is fixed on the wire cutting machine tool, cut along the section to be analyzed, and the 4D printed CuAl-based alloy sample is cut. The thickness is 1mm.

[0065] (2) Cleaning: Use acetone solution to clean the cut samples to remove metal powder and oil stains remaining on the surface during the cutting process.

[0066] (3) Mounting: use CMR2 conductive cold mounting material to mount the cut sample, and the thickness after mounting is 11mm.

[0067] (4) Grinding: Use 400#, 800#, 1200#, 2000#, 3000# silicon carbide sandpaper to grind the surface of the 4D printed CuAl-based alloy sample in sequence until the sample is visually inspected for no deep scratches. In this embodiment, a grinding and polishing machine is used to ...

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Abstract

The invention discloses a preparation method of a 4D printing CuAl-based alloy EBSD sample, which comprises the following steps: cutting a CuAl-based alloy by using a wire cut electric discharge machine; cleaning the cut sample, and removing metal powder and oil stains remaining on the surface of the sample in the cutting process; embedding the cleaned sample, wherein the thickness of the embedded sample is 8-12mm; grinding the 4D printed CuAl-based alloy sample; carrying out mechanical polishing and then chemical mechanical polishingon the ground sample, after polishing is finished, washing the surface of the sample with deionized water, dehydrating the sample with ethyl alcohol and dried, and obtaining a 4D printing CuAl-based alloy EBSD sample, wherein the polishing solution comprises the following components in percentage by mass: 2-10% of fumed silica, 2-10% of urea hydrogen peroxide, 0.5-2% of chitosan oligosaccharide and the balance of distilled water. The method for preparing the 4D printing CuAl-based alloy EBSD sample is easy to operate, short in time consumption, large in polishing area and free of expensive equipment, and efficient and low-cost preparation of the 4D printing CuAl-based alloy EBSD sample is achieved.

Description

technical field [0001] The invention belongs to the technical field of alloy analysis, and in particular relates to a method for preparing a 4D printed CuAl-based alloy EBSD sample. Background technique [0002] EBSD technology is a microscopic characterization technique assembled on a scanning electron microscope, and is an important means for material crystal orientation and microstructure analysis. The EBSD test uses the electron beam in the scanning electron microscope to excite and form the diffraction Kikuchi band (diffraction pattern) on the surface of the inclined sample, and then calibrates the backscattering diffraction pattern to realize the sample crystal orientation, phase, grain boundary properties, lattice constant and strain. distribution analysis. [0003] 4D printing CuAl-based alloy has excellent shape memory properties, and has the advantages of high phase transition temperature, easy processing and cheap raw materials. It can not only be used in high-en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/203G01N23/20008
CPCG01N23/203G01N23/20008Y02P10/25
Inventor 李瑞迪康景涛郑聃袁铁锤
Owner CENT SOUTH UNIV