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Heat-resistant aluminum alloy powder material, preparation method and application

A technology of powder materials and aluminum alloys, applied in the field of 3D printing materials, can solve the problems of high temperature resistance, high stability and poor creep resistance, etc., and achieve the effect of metallographic defect-free, excellent surface quality and low cost

Pending Publication Date: 2022-04-29
江西宝航新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a heat-resistant aluminum alloy powder material, preparation method and application to

Method used

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  • Heat-resistant aluminum alloy powder material, preparation method and application
  • Heat-resistant aluminum alloy powder material, preparation method and application
  • Heat-resistant aluminum alloy powder material, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A heat-resistant aluminum alloy powder material, the mass fraction of main alloying elements in the powder material is: Si: 8.8wt%, Fe: 3.5wt%, Ni: 2.5wt%, Mn: 3.0wt%, and the balance is Al .

[0037] The raw material of the powder material is a combination of aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy.

[0038] The preparation method of the above-mentioned heat-resistant aluminum alloy powder material includes:

[0039] Step 1, weighing the required amount of raw material aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, aluminum-manganese alloy, and placing it in a smelting device;

[0040] Step 2, vacuumize the smelting device until its vacuum degree is 56Pa, and then fill it with nitrogen to atmospheric pressure;

[0041] Step 3: Melt aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy at 1150°C to form a smelting solut...

Embodiment 2

[0062] A heat-resistant aluminum alloy powder material, the mass fraction of main alloying elements in the powder material is: Si: 12.0wt%, Fe: 2.5wt%, Ni: 3.0wt%, Mn: 4.0wt%, and the balance is Al .

[0063] The raw material of the powder material is a combination of aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy.

[0064] The preparation method of the above-mentioned heat-resistant aluminum alloy powder material includes:

[0065] Step 1, weighing the required amount of raw material aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, aluminum-manganese alloy, and placing it in a smelting device;

[0066] Step 2, vacuumize the smelting device to a vacuum of 90 Pa, and then fill it with nitrogen to atmospheric pressure;

[0067] Step 3: Melt aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy at 900°C to form a smelting liquid, then pla...

Embodiment 3

[0087] A heat-resistant aluminum alloy powder material, the mass fraction of main alloying elements in the powder material is: Si: 6.0wt%, Fe: 2.0wt%, Ni: 1.5wt%, Mn: 1.5wt%, and the balance is Al .

[0088] The raw material of the powder material is a combination of aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy.

[0089] The preparation method of the above-mentioned heat-resistant aluminum alloy powder material includes:

[0090] Step 1, weighing the required amount of raw material aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, aluminum-manganese alloy, and placing it in a smelting device;

[0091] Step 2, vacuumize the smelting device to a vacuum degree of 100 Pa, and then fill it with argon to atmospheric pressure;

[0092] Step 3: Melt aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy at 950°C to form a smelting solution, th...

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Abstract

The invention provides a heat-resistant aluminum alloy powder material as well as a preparation method and application thereof. The heat-resistant aluminum alloy powder material comprises the following main alloy elements in percentage by mass: 6.0 to 12 weight percent of Si, 2.0 to 5.0 weight percent of Fe, 1.0 to 3.0 weight percent of Ni, 1.0 to 4.0 weight percent of Mn and the balance of Al. The powder material is uniform in structure and free of obvious segregation, the room-temperature and high-temperature mechanical properties meet the harsh requirements proposed by temperature-resistant additive manufacturing, and the powder material is excellent in performance at the high temperature, especially at the temperature of 200-250 DEG C. In addition, rare earth elements do not need to be added or complex process wrapping is not needed, cost is lower, and industrial production can be met.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a heat-resistant aluminum alloy powder material, a preparation method and an application. Background technique [0002] With the development of additive manufacturing technology, it is applied to more and more fields, but it is limited by the slow development of materials. For example, traditional heat-resistant aluminum alloys cannot be applied to additive manufacturing processes, leading to further applications of additive manufacturing. restricted. Especially in the high-temperature application environment, not only light weight and high temperature resistance are required, but also higher requirements are put forward for structural design. Therefore, the development of aluminum alloy materials with high temperature resistance and high stability is imminent. [0003] In the prior art, Central South University has developed an aluminum-nickel (Al-Ni) alloy materi...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/03B22F1/00B22F9/08B22F10/28B33Y70/00B33Y10/00
CPCC22C21/02C22C1/03C22C1/026B22F9/082B22F10/28B33Y70/00B33Y10/00Y02P10/25
Inventor 赵春禄胡万谦李振民
Owner 江西宝航新材料有限公司