Composite material and preparation method thereof

A technology of composite materials and ceramic materials, applied in the field of aluminum alloy materials, can solve the problems of decreased mechanical strength and mechanical properties of materials, inability to take into account the corrosion resistance of materials, and inability to meet use requirements, etc., to achieve tight bonding, improve hardness and wear resistance. , improve the effect of friction reduction

Inactive Publication Date: 2019-06-25
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above invention only improves the wear resistance of aluminum alloy by changing the composition of the aluminum alloy material. Although it can enhance the wear resistance of aluminum alloy to a certain extent, the effect is limited, and it cannot meet the requirements for use under two extreme environments at the same time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite material and preparation method thereof
  • Composite material and preparation method thereof
  • Composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: Composite material is prepared as follows:

[0034] 1. Preparation of raw materials:

[0035] The aluminum alloy / ceramic material powder is composed of 80-95wt% aluminum alloy matrix powder and 5-20wt% ceramic material powder, and the ceramic material is composed of 29wt% silicon carbide, 15wt% diboron trioxide, 35wt% titanium boride, 20wt% Silicon dioxide, composed of 1wt% calcium oxide;

[0036] The matrix composition of the aluminum alloy is as follows: 0.1% Cu, 0.004% Au, 0.8% Mg, 0.04% Pd, 0.05% Ni, 0.2% Zn, 0.2% Sr, 0.02% Ho, 3% Si, 0.04% Fe, 0.002% W, the balance being Al.

[0037] The relative weight ratio of boron nitride, silicon oxide, tungsten trioxide, and molybdenum disulfide in the mixture particles is 1.1:1:1:0.03, the weight percentage of the mixture particles in the aluminum alloy matrix is ​​3%, and the particle size of the mixture particles is 10 microns.

[0038] The aluminum alloy / ceramic material powder composition that the first...

Embodiment 2

[0053] Embodiment 2: Composite material is prepared as follows:

[0054] 1. Preparation of raw materials:

[0055] The aluminum alloy / ceramic material powder is composed of 80-95wt% aluminum alloy matrix powder and 5-20wt% ceramic material powder, and the ceramic material is composed of 25wt% silicon carbide, 25wt% diboron trioxide, 25wt% titanium boride, 20wt% Silica, composed of 5wt% calcium oxide;

[0056] The matrix composition of the aluminum alloy is as follows: 0.5% Cu, 0.006% Au, 1.2% Mg, 0.07% Pd, 0.08% Ni, 0.6% Zn, 0.4% Sr, 0.08% Ho, 8% Si, 0.07% Fe, 0.008% W, the balance being Al.

[0057] The relative weight ratio of boron nitride, silicon oxide, tungsten trioxide and molybdenum disulfide in the mixture particles is 1.4:1:1:0.03, the weight percentage of the mixture particles in the aluminum alloy matrix is ​​5%, and the particle size of the mixture particles is 13 microns.

[0058] The aluminum alloy / ceramic material powder composition that the first depositio...

Embodiment 3

[0073] Embodiment 3: prepare composite material as follows:

[0074] 1. Preparation of raw materials:

[0075] The aluminum alloy / ceramic material powder is composed of 80-95wt% aluminum alloy matrix powder and 5-20wt% ceramic material powder, and the ceramic material is composed of 33wt% silicon carbide, 20wt% diboron trioxide, 30wt% titanium boride, 15wt% Silica, composed of 2wt% calcium oxide;

[0076] The matrix composition of the aluminum alloy is as follows: 0.3% Cu, 0.005% Au, 1.0% Mg, 0.055% Pd, 0.065% Ni, 0.4% Zn, 0.3% Sr, 0.05% Ho, 5.5% Si, 0.055% Fe, 0.005% W, the balance being Al.

[0077] The relative weight ratio of boron nitride, silicon oxide, tungsten trioxide and molybdenum disulfide in the mixture particles is 1.25:1:1:0.03, the weight percentage of the mixture particles in the aluminum alloy matrix is ​​4%, and the particle size of the mixture particles is 11.5 microns.

[0078] The aluminum alloy / ceramic material powder composition that the first depos...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a composite material. Boron nitride particles, silicon oxide particles, tungsten trioxide particles and molybdenum disulfide particles are uniformly distributed in an aluminumalloy matrix, wherein the antifriction property can be improved through the molybdenum disulfide particles. The surface of the matrix is provided with three-layer gradient deposition layers, so that the wear resistance and the hardness of the alloy surface can be effectively improved. Dispersion strengthening is realized through strengthening phases of elements such as Zn, Sr, Ho, Cu, Au, Mg, Pd,Si, Al, Ni, W and Fe in an alloy, so that the mechanical property of the material is improved. The invention further discloses a preparation method of the composite material. According to the preparation method, a ceramic layer is formed through laser deposition, aluminum oxide particles can be driven to grow in the deposition layers, the hardness and the wear resistance are further improved by combining ultrasonic surface rolling, through the ceramic surface of the composite material, the composite material simultaneously achieves the characteristics of ceramic high temperature resistance andmetal low temperature resistance, so that the composite material can be applied to the field of machining of parts requiring the high temperature resistance and the low temperature resistance simultaneously, and the surface nitriding process can enhance the corrosion resistance of the composite material.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to a composite 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 environmental po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C21D9/00C22C1/02C22C21/02C22C32/00C22F1/043C22F3/00C23C8/24C23C14/06C23C14/28
Inventor 赵浩峰于鹏郑建华王青青
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap