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High-temperature alloy tensile property sample and preparation method thereof

A high-temperature alloy and tensile performance technology, applied in the preparation of test samples, etc., can solve problems such as inability to complete the test process, breakage of the working section, etc., and achieve the effects of not easy sample deformation, stable arc, and good insulation effect

Pending Publication Date: 2021-05-25
BEIJING BEIYE FUNCTIONAL MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the clamping end of the sample will break before the working section, and the whole test process cannot be completed.

Method used

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  • High-temperature alloy tensile property sample and preparation method thereof
  • High-temperature alloy tensile property sample and preparation method thereof
  • High-temperature alloy tensile property sample and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-temperature alloy tensile performance sample, including a high-temperature alloy sample to be tested 1, the two ends of the high-temperature alloy sample to be tested are clamping ends 2, and between the clamping ends is a working section 3. A patch one 4 and a patch two 5 are attached to the upper surface of the holding end respectively. The patch is a high-temperature alloy thin plate, the thickness of the patch is 0.8mm, the patch is connected to the high-temperature alloy sample to be tested by gas welding, and the solder joints are located in the middle of the four corners of the patch and the two sides of the patch, There is a positioning hole 8 in the center of the patch. The size of the positioning hole is the same as that of the clamping end. The size of the superalloy sample to be tested is selected from GB / T 228.2-2015. The sheet is also a cobalt-based superalloy.

Embodiment 2

[0029] A high-temperature alloy tensile performance sample, including a high-temperature alloy sample to be tested 1, the two ends of the high-temperature alloy sample to be tested are clamping ends 2, and between the clamping ends is a working section 3. A patch one 4 and a patch two 5 are attached to the upper and lower surfaces of the holding end respectively. The patch is a high-temperature alloy thin plate, the thickness of the patch is 0.5mm, the patch is connected to the high-temperature alloy sample to be tested by arc welding, and a positioning hole 8 is opened in the center of the patch, and the size of the positioning hole is The size of the positioning hole is the same as that of the clamping end. The size of the superalloy sample to be tested is selected from GB / T 228.2-2015. The superalloy to be tested and the patch are both iron-based superalloys.

Embodiment 3

[0031] A high-temperature alloy tensile performance sample, including a high-temperature alloy sample to be tested 1, the two ends of the high-temperature alloy sample to be tested are clamping ends 2, and between the clamping ends is a working section 3. The upper and lower surfaces of the holding end are respectively attached with patch one 4, patch two 5, patch three 6 and patch four 7. The patch is a high-temperature alloy thin plate, the thickness of the patch is 0.5mm, the patch is connected to the high-temperature alloy sample to be tested by vacuum diffusion welding, and a positioning hole 8 is opened in the center of the patch. The size is the same as the size of the positioning hole at the clamping end. The size of the superalloy sample to be tested is selected from GB / T 228.2-2015. The superalloy to be tested and the patch are both nickel-based superalloys.

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Abstract

The invention discloses a high-temperature alloy tensile property sample and a preparation method thereof, and belongs to the technical field of metal test samples. The sample comprises a to-be-tested high-temperature alloy sample (1), two ends of the to-be-tested high-temperature alloy sample (1) are clamping ends (2), and a working section (3) is arranged between the clamping ends (2); a patch is additionally arranged on the surface of at least one side of the clamping end (2); the patch is a high-temperature alloy thin plate with the thickness of 0.5-0.8 mm, and the patch is quadrilateral; the patch is connected to a high-temperature alloy sample to be tested through welding; and the center of the patch is provided with a positioning part (8). Argon tungsten-arc welding is adopted, the welding current is 60-80 A, the inner diameter of an argon pipeline is 1-10 mm, and the air pressure is 1-2 atmospheric pressures. The sample has the advantages that the patch is additionally arranged in a welding manner, so that the force bearing limit of the clamping end of the tensile sample is improved, the clamping end is prevented from being broken in the test process, and the high-temperature tensile test is smoothly finished.

Description

technical field [0001] The invention belongs to the technical field of metal test samples, in particular to a high-temperature alloy tensile performance sample and a preparation method thereof, which are suitable for strip foil tensile tests. Background technique [0002] Superalloy is a kind of metal material with higher high-temperature strength and better corrosion resistance. The finished product of superalloy usually needs to test its tensile properties at a specific temperature. The current test method for high-temperature tensile properties refers to GB / T228.2 -2015 (Test method for high temperature tensile properties of metal materials). [0003] High-temperature alloy cold-rolled strip and foil products, because their thickness is usually below 1.0mm, and the high temperature makes the clamping end of the sample lose its original strength, the clamping end of the sample will usually be ahead of the working surface when performing a high-temperature tensile test. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 田建军李振瑞牛永吉安宁张志伟高杨吕晨熠张乐
Owner BEIJING BEIYE FUNCTIONAL MATERIALS CORP
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