Aluminum-based material and preparation method thereof

An aluminum-based material and matrix technology, applied in the field of aluminum alloy materials, can solve the problems of inability to concentrate wear resistance, inability to isolate corrosion factors, and increase material costs, so as to improve hardness and wear resistance, and achieve significant wear resistance. The effect of production efficiency

Inactive Publication Date: 2019-05-03
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned invention adds wear-resistant materials to aluminum alloy profiles to improve the wear resistance of aluminum alloys. Although the wear resistance of aluminum alloys can be enhanced, the amount of wear-resistant materials added to aluminum alloy materials during casting is large, which improves the wear resistance of aluminum alloys. The cost and wear resistance cannot be concentrated on the parts that are prone to wear and tear for long-term friction
In actual use, the wear does not exist on the entire surface of the alloy material, but concentrates on the parts with frequent friction. Therefore, the wear-resistant material does not need to be evenly distributed on the alloy material. The alloy is directly exposed to the air, which cannot isolate the corrosion factor and can be used for a long time. Corrosion loss still occurs

Method used

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  • Aluminum-based material and preparation method thereof
  • Aluminum-based material and preparation method thereof
  • Aluminum-based material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: Aluminum-based materials are prepared as follows:

[0034] 1. Preparation of raw materials:

[0035] The relative weight ratio of aluminum nitride, zirconia, tantalum oxide, and graphite fluoride is 1.2:1:1:0.06; Ag, Ca, Li, Hf, Cr, Si, Fe, Cu, Ba, and Al in the raw materials are all simple substances , the purity is greater than 99.9%; Ni is added in the form of aluminum-nickel alloy, wherein the weight percentage of Ni is 15%, and the rest is aluminum;

[0036] Mn-Al alloy and Cr 2 o 3 The weight ratio of the Mn-Al alloy is 3:1, the content of Mn in the Mn-Al alloy is 33.5wt%, and the rest is aluminum.

[0037] MoS 2 、Al 2 o 3 , The average particle size of SiC mixed particles is 10-15μm, MoS 2 :Al 2 o 3 : The mass ratio of SiC is 1:3:4.

[0038] Second, the preparation of aluminum-based materials:

[0039] (1) Preparation of aluminum alloy matrix: Weigh raw materials according to the following weight percentages: 0.003% Ag, 0.09% Ca, 0.2% Li,...

Embodiment 2

[0050] Embodiment 2: Aluminum-based materials are prepared as follows:

[0051] 1. Preparation of raw materials:

[0052] The relative weight ratio of aluminum nitride, zirconia, tantalum oxide, and graphite fluoride is 1.5:1:1:0.06; Ag, Ca, Li, Hf, Cr, Si, Fe, Cu, Ba, and Al in the raw materials are all Simple substance, the purity is greater than 99.9%; Ni is added in the form of aluminum-nickel alloy, wherein the weight percentage of Ni is 15%, and the rest is aluminum;

[0053] Mn-Al alloy and Cr 2 o 3 The weight ratio of the Mn-Al alloy is 10:1, the content of Mn in the Mn-Al alloy is 55.6wt%, and the rest is aluminum.

[0054] MoS 2 、Al 2 o 3 , The average particle size of SiC mixed particles is 15μm, MoS 2 :Al 2 o 3 : The mass ratio of SiC is 1:5:4.

[0055] Second, the preparation of aluminum-based materials:

[0056] (1) Preparation of aluminum alloy matrix: Weigh raw materials according to the following weight percentages: 0.008% Ag, 0.13% Ca, 0.7% Li, 6% ...

Embodiment 3

[0067] Embodiment 3: Aluminum-based materials are prepared as follows:

[0068] 1. Preparation of raw materials:

[0069] The relative weight ratio of aluminum nitride, zirconia, tantalum oxide, and graphite fluoride is 1.35:1:1:0.06; Ag, Ca, Li, Hf, Cr, Si, Fe, Cu, Ba, and Al in the raw materials are all Simple substance, the purity is greater than 99.9%; Ni is added in the form of aluminum-nickel alloy, wherein the weight percentage of Ni is 15%, and the rest is aluminum;

[0070] Mn-Al alloy and Cr 2 o 3 The weight ratio of the Mn-Al alloy is 6:1, the content of Mn in the Mn-Al alloy is 43.6wt%, and the rest is aluminum.

[0071] MoS 2 、Al 2 o 3 , The average particle size of SiC mixed particles is 13μm, MoS 2 :Al 2 o 3 : The mass ratio of SiC is 1:4:4.

[0072] Second, the preparation of aluminum-based materials:

[0073] (1) Preparation of aluminum alloy matrix: Weigh raw materials according to the following weight percentages: 0.0055% Ag, 0.011% Ca, 0.5% Li, 4...

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Abstract

The invention discloses an aluminum-based material. Aluminum nitride, zirconium oxide and tantalum oxide particles are uniformly distributed in an aluminum alloy substrate, MoS2, Al2O3 and SiC are distributed on part of a surface layer of the aluminum alloy substrate, the hardness of aluminum nitride, zirconium oxide and tantalum oxide is high, the hardness and wear-resisting performance of the substrate are significantly improved, and fluorinated graphite powder can improve the anti-friction property. The surface of the substrate is coated with a Mn-Cr coating in a fusion mode to effectivelyimprove the wear-resisting performance and corrosion resistance of the alloy surface. The dispersion strengthening of strengthening phases of Si, Cu, Cr, Ni, Hf, Fe, Ag, Ca, Li, Ba and other elementsin the alloy improves the mechanical properties of the material. A preparation method enables mixed powder to be located in the center of a master alloy solution during casting through a method by adhering the mixed powder to a pure aluminum metal wire, the rapid diffusion and homogenization of micro powder particles is facilitated, the production efficiency is improved, wear-resistant materials are locally added by friction stir machining, and the material utilization ratio is improved.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to an aluminum-based material and a preparation method thereof. Background technique [0002] At present, the commonly used aluminum alloy surface modification technologies at home and abroad mainly include coating technology (electroplating, chemical plating, anodic oxidation), vapor deposition (PVD, CVD), thermal spraying technology (arc spraying, flame spraying, plasma spraying), high energy beam (Laser, ion beam, electron beam) surface modification technology and other methods. Although traditional aluminum alloy surface modification technologies (coating technology, vapor deposition, thermal spraying technology) can improve the hardness and wear resistance of aluminum alloys to a certain extent, there are still some inevitable limitations. For example, the coating technology has deficiencies such as insufficient dense coating layer, chromate toxicity, serious environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/10C22C32/00C23C24/10B22C1/02B22C9/02
Inventor 赵浩峰于鹏张椿英
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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