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High-entropy alloy reinforced nickel-aluminum composite material spherical powder for 3D printing and preparation method of high-entropy alloy reinforced nickel-aluminum composite material spherical powder

A high-entropy alloy and 3D printing technology, applied in additive processing, metal processing equipment, additive manufacturing, etc., can solve problems such as high cost, complicated process, and difficult quality assurance, and achieve high added value, improved plasticity, and a good market foreground effect

Pending Publication Date: 2022-03-01
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the high-entropy alloy-reinforced nickel-aluminum composite material produced by the existing smelting method has high cost, complicated process and difficult quality assurance.

Method used

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  • High-entropy alloy reinforced nickel-aluminum composite material spherical powder for 3D printing and preparation method of high-entropy alloy reinforced nickel-aluminum composite material spherical powder

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preparation example Construction

[0024] A preparation method for high-entropy alloy reinforced nickel-aluminum composite material spherical powder for 3D printing, comprising the following steps:

[0025] A. After cleaning the surface of chromium, manganese, iron, cobalt and nickel elemental metals, put them into the crucible with induction coil in proportion;

[0026] B. Vacuumize the high-frequency induction melting furnace;

[0027] C. Under vacuum protection, turn on the copper coil of the high-frequency induction power supply to heat the metal in the crucible, and the current intensity is 80-90A. After it is completely melted, pour it into the tundish to make the alloy solution fall evenly;

[0028] D. After the first droplet falls, open the argon gas valve, and the liquid will become small droplets under the action of high-pressure gas, and solidify into solid particles;

[0029] E. Clean up the crucible, then clean the surface of the nickel and aluminum elemental metals, put them into the crucible wit...

Embodiment 1

[0039] Using this method to prepare CrMnFeCoNi reinforced NiAl spherical powder

[0040] Prepare CrMnFeCoNi reinforced NiAl spherical powder according to the following steps:

[0041] A, surface treated, chromium, manganese, iron, cobalt, nickel simple substance are put into the crucible with induction coil, each metal atomic ratio is 20%: 20%: 20%: 20%: 20%;

[0042] B. Vacuum the high-frequency induction melting furnace equipment, and the vacuum degree is 4.5×10 -3 Pa;

[0043] C. Under vacuum protection, turn on the copper coil of the high-frequency induction power supply to heat the raw materials. The current intensity is stabilized at 80A from 20A, 30A, 40A, 50A, and 60A. After it is completely melted, pour it into the tundish to make the alloy solution fall evenly. ;

[0044] D. After the first droplet falls, open the argon gas valve, and the liquid will become small droplets under the action of high-pressure gas, and solidify into solid particles;

[0045] E, after ...

Embodiment 2

[0049] Using this method to prepare Cr25Mn25Fe20Co15Ni15 reinforced Ni3Al spherical powder

[0050] Prepare Cr25Mn25Fe20Co15Ni15 reinforced Ni3Al spherical powder according to the following steps:

[0051] A, surface treated, chromium, manganese, iron, cobalt, nickel simple substance are put into the crucible with induction coil, each metal atomic ratio is 25%: 25%: 20%: 15%: 15%;

[0052] B. Vacuum the equipment with a vacuum degree of 4.5×10 -3 Pa;

[0053] C. Under vacuum protection, turn on the high-frequency induction power supply copper coil to heat the raw materials. The current intensity is stabilized at 90A from 20A, 30A, 40A, 50A, and 60A. After it is completely melted, pour it into the tundish to make the alloy solution fall evenly. ;

[0054] D. After the first droplet falls, open the argon gas valve, and the liquid will become small droplets under the action of high-pressure gas, and solidify into solid particles;

[0055] E, after nickel, aluminum elemental m...

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Abstract

The invention relates to high-entropy alloy reinforced nickel-aluminum composite material spherical powder for 3D printing and a preparation method, the powder comprises a high-entropy alloy and a nickel-aluminum alloy, and the mass ratio of the high-entropy alloy is 10-40%; the nickel-aluminum alloy comprises the following elements in percentage by mass: 50-90% of nickel and 10-50% of aluminum; the high-entropy alloy comprises, by atomic ratio, 10%-25% of chromium, 10%-25% of manganese, 10%-25% of iron, 10%-25% of cobalt and 10%-25% of nickel. The method comprises the following steps: A, putting chromium, manganese, iron, cobalt and nickel into a crucible; b, vacuumizing; c, the crucible is heated, and the solution falls down; d, argon and solidification; e, nickel and aluminum are put into the crucible, and the steps B-D are repeated; and F, mixing in proportion. High-entropy alloy and nickel-aluminum alloy particles are prepared through an electrode induction melting gas atomization method, and the 3D printing raw material is prepared by mixing the high-entropy alloy and the nickel-aluminum alloy particles in proportion. The problems that the high-entropy alloy reinforced nickel-aluminum composite material prepared in a smelting mode is high in cost and complex in procedure are solved.

Description

technical field [0001] The invention relates to a high-entropy alloy-reinforced nickel-aluminum composite material spherical powder for 3D printing and a preparation method thereof, belonging to the technical field of 3D printing metal material preparation. Background technique [0002] 3D printing, also known as "additive manufacturing" technology, belongs to a kind of rapid prototyping technology. Metal powder, non-metal powder, cell tissue and other materials are piled up and bonded layer by layer in different ways, and finally superimposed and formed to produce a solid product. Compared with traditional manufacturing methods, additive manufacturing technology is a "bottom-up" manufacturing method through material accumulation, which realizes "free manufacturing" of parts, solves the forming of many complex structural parts, and greatly reduces the processing time. The process shortens the processing cycle, and the more complex the product structure, the more significant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/03C22C30/00B22F1/065B22F1/14B22F9/08B22F10/28B33Y70/00
CPCC22C19/03C22C30/00B22F9/082B22F10/28B33Y70/00B22F2009/0824B22F2009/0848Y02P10/25
Inventor 刘芯宇钟兵刘永胜吴旺
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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