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Novel nickel-aluminum-base self-repairing composite material and preparing method thereof

A composite material and self-repairing technology, which is applied in the field of new nickel-aluminum-based self-repairing composite materials, can solve the problems of lower hardness of the matrix and affect the popularization and use of titanium-aluminum-based composite materials, and achieve low cost, easy promotion, and suitable for mass production Effect

Active Publication Date: 2017-03-15
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, a similar invention patent in the field of metal matrix composite materials "a method for preparing a titanium-aluminum matrix self-healing composite material containing mica powder" (application number 201610030921.1), successfully prepared a titanium-aluminum matrix self-healing composite material containing mica powder by using spark plasma sintering Composite materials, but there is an insurmountable problem, that is, the addition of mica powder leads to a decrease in the hardness of the matrix, which affects the popularization and use of titanium-aluminum matrix composites
[0007] In order to solve such technical problems, the present invention proposes to introduce titanium carbide as a reinforcing additive for nickel-aluminum matrix composites, which can be used to improve the hardness reduction of nickel-aluminum matrix composites due to the addition of serpentine

Method used

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  • Novel nickel-aluminum-base self-repairing composite material and preparing method thereof
  • Novel nickel-aluminum-base self-repairing composite material and preparing method thereof
  • Novel nickel-aluminum-base self-repairing composite material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a) According to the proportion of serpentine mass fraction of 2% and titanium carbide mass fraction of 1%, weigh 6.31 grams of nickel powder, 3.39 grams of aluminum powder, 0.2 grams of serpentine powder and 0.1 grams of titanium carbide powder to obtain the original Ingredients;

[0026] b) Place the above-mentioned original ingredients in a high-frequency vibration mixer with a vibration force of 9000N, and vibrate and mix the ingredients for 15 minutes to obtain a uniformly mixed sintered ingredient;

[0027] c) Put the above-mentioned sintering ingredients into a graphite mold, use discharge plasma sintering under vacuum protection, raise the temperature to 1100°C at a rate of 150°C / min, pressurize to 35MPa, keep the temperature for 6min, and cool down to produce a new type of nickel Aluminum-based self-healing composites.

[0028] The hardness of the new nickel-aluminum-based self-repairing composite material prepared in Example 1 was tested by HVS-1000 digital mi...

Embodiment 2

[0030] a) According to the ratio of 5% serpentine mass fraction and 2% titanium carbide mass fraction, weigh 6.04 grams of nickel powder, 3.26 grams of aluminum powder, 0.5 grams of serpentine powder and 0.2 grams of titanium carbide powder to obtain the original Ingredients;

[0031] b) Place the above-mentioned original ingredients in a high-frequency vibration mixer with a vibration force of 9000N, and vibrate and mix the ingredients for 15 minutes to obtain a uniformly mixed sintered ingredient;

[0032] c) Put the above-mentioned sintering ingredients into a graphite mold, use discharge plasma sintering under vacuum protection, raise the temperature to 1100°C at a rate of 165°C / min, pressurize to 40MPa, keep the temperature for 8min, and cool down to produce a new type of nickel Aluminum-based self-healing composites.

[0033] The hardness of the new nickel-aluminum-based self-healing composite material prepared in Example 2 was tested by HVS-1000 digital micro-Vickers h...

Embodiment 3

[0035] a) According to the proportion of serpentine mass fraction of 8% and titanium carbide mass fraction of 3%, weigh 5.78 grams of nickel powder, 3.12 grams of aluminum powder, 0.8 grams of serpentine powder and 0.3 grams of titanium carbide powder to obtain the original Ingredients;

[0036] b) Place the above-mentioned original ingredients in a high-frequency vibration mixer with a vibration force of 9000N, and vibrate and mix the ingredients for 15 minutes to obtain a uniformly mixed sintered ingredient;

[0037] c) Put the above-mentioned sintering ingredients into a graphite mold, use discharge plasma sintering under vacuum protection, raise the temperature to 1150°C at a rate of 180°C / min, pressurize to 45MPa, keep the temperature for 10min, and cool down to produce a new type of nickel Aluminum-based self-healing composites.

[0038] In summary, the present invention’s research on serpentine and titanium carbide as additives for nickel-aluminum matrix composites has...

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Abstract

The invention discloses a novel nickel-aluminum-base self-repairing composite material. The novel nickel-aluminum-base self-repairing composite material is prepared with nickel powder, aluminum powder, serpentine powder and titanium carbide powder as raw materials. By mass percent, the nickel powder accounts for 57.8%-63.1%, the aluminum powder accounts for 31.2%-33.9%, the serpentine powder accounts for 2%-8%, and the titanium carbide powder accounts for 1%-3%. The invention further discloses a preparing method of the novel nickel-aluminum-base self-repairing composite material. The above raw materials are placed in a high-frequency vibration material mixer with the vibration force being 9,000 N, vibration and material mixing are conducted for 15 min, sintered ingredients evenly mixed are obtained and are placed in a graphite grinding tool, spark plasma sintering is adopted for preparing, and the novel nickel-aluminum-base self-repairing composite material is obtained. The novel nickel-aluminum-base self-repairing composite material prepared through the method has good abrasion resistance, friction reduction and self-repairing performance, the preparing technology is simple, parameters are easy to control, cost is low, and the novel nickel-aluminum-base self-repairing composite material is suitable for batched production and popularization.

Description

technical field [0001] The invention relates to the technical field of metal-based composite materials and their preparation, more specifically, to a novel nickel-aluminum-based self-repairing composite material and a preparation method thereof. Background technique [0002] Nickel-aluminum alloy has excellent properties such as low density, high strength, high melting point, high oxidation resistance and high corrosion resistance. It is widely used as a structural material, but its poor anti-wear and friction-reducing properties limit its application to a certain extent. scope. [0003] In order to solve this problem and expand its application field, researchers added ZnO, Ti 3 SiC 2 , graphene and other additives to prepare nickel-aluminum matrix composite materials, compared with nickel-aluminum alloy, its anti-wear and anti-friction performance has been significantly improved, and has been widely used in aviation, aerospace, military, nuclear power and thermal engineer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/03C22C32/00C22C1/05C22C1/10
CPCC22C1/05C22C19/03C22C32/0005
Inventor 徐增师李俊卢北虎花仕洋孙佳
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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