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Method for showing 6082 aluminum alloy structure

A technology of aluminum alloy and structure, which is applied in the field of metallographic sample preparation, can solve the problems such as the difficulty of displaying the structure of 6082 aluminum alloy, and achieve the effect of simple implementation

Inactive Publication Date: 2009-03-11
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for displaying the structure of 6082 aluminum alloy to solve the problem that the structure of 6082 aluminum alloy is difficult to display

Method used

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  • Method for showing 6082 aluminum alloy structure
  • Method for showing 6082 aluminum alloy structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] a Deformation: Make 60% compression deformation of 6082 aluminum alloy sample at room temperature.

[0017] b Annealing: Anneal the deformed sample at 540°C and cut it with a grinding wheel cutting machine.

[0018] c Rough grinding and polishing: Roughly grind the sample with water sandpaper, and replace the next sandpaper when there are no scratches perpendicular to the grinding direction on the surface. Wash and polish the sample ground by No.1200 water sandpaper, and observe the polished surface with a microscope to ensure that there are no large scratches.

[0019] d Anodizing: Coating the polished sample on the NO.70-1730 ELECTROMET III POLISH / ETCHER electrolytic polishing machine, the voltage is 30V, the anodizing time is 90s, washed with alcohol and dried; Observed under a microscope, a relatively clear recrystallized structure of 6082 was obtained.

[0020] Anodizing solution formula and preparation process

[0021] (1) The formula of the anodic oxidation so...

Embodiment 2

[0027] a Rough grinding and polishing: Roughly grind the hot-extruded sample on water sandpaper, and replace the next sandpaper when there are no scratches perpendicular to the grinding direction on the surface. Wash and polish the sample ground by No1200 water sandpaper, and observe the polished surface under a microscope to ensure that there are no large scratches.

[0028] b Anodizing: The polished sample is coated on the NO.70-1730 ELECTROMET III POLISH / ETCHER electrolytic polishing machine, the voltage is 30V, the anodizing time is 90s, washed with alcohol, and dried; Observation under a microscope shows a clearer structure of 6082 after extrusion.

[0029] Anodizing solution formula and preparation process

[0030] (1) The formula of the anodic oxidation solution is:

[0031] 50mL of 46% hydrofluoric acid (HF),

[0032] 14g boric acid (H 3 BO 3 ),

[0033] Add distilled water to dilute to 1L.

[0034] (2) The configuration process of the anodic oxidation solution ...

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Abstract

The invention provides a method for displaying 6082 aluminium alloy structure, pertaining to the technical field of metallographic specimen preparation. The specific steps of the method are: a 6082 aluminium alloy test specimen is put on a waterproof abrasive paper for coarse grinding and polishing, then anode oxidation is carried out, the formulation of anode oxidation solution is 45 to 70mL of hydrofluoric acid and 12 to 16g of boronic acid, then distilled water is added for dilution to be 1L; the voltage of anode oxidation is 20 to 40V, the time of anode oxidation is 70 to 120s, then the test specimen is washed and blow-dried; and the clear 6082 aluminium alloy structure can be observed under a polarizing microscope. The invention has the advantage that the problem that 6082 aluminium alloy structure is difficult to display is solved, the structure of aluminium alloy structure after recrystallization and extrusion is clearly displayed. The method is simple and convenient to be implemented.

Description

technical field [0001] The invention provides a method for observing the structure of 6082 aluminum alloy, which is easy to operate and belongs to the technical field of metallographic sample preparation. Background technique [0002] Among the 6000 series alloys, 6082 aluminum alloy has the highest strength. 6082 is a relatively new aluminum alloy, similar to 6061, but with better performance. The tensile strength of 6082 is 10%-18% higher than that of 6061. Due to the low copper content, the overall corrosion resistance is better, and the extrusion and oxidation properties are the same. 6082 is Al 2 Mg 2 Si-based medium-strength aluminum alloy has good corrosion resistance and processing performance, and is widely used in large-scale welded structural parts, marine parts and blanks for mold processing. [0003] The organization of a material has a great influence on its performance, so it is of great significance to be able to clearly observe the organization of a mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N13/00G01N1/32
Inventor 邵光杰刘立坤黄龙辉
Owner SHANGHAI UNIV
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