Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A composite coating material for improving the tribological properties of tc4 alloy and its preparation method

A composite coating and tribology technology, applied in the direction of metal material coating process, coating, metal processing equipment, etc., can solve the problems of low bonding strength, harmful environment, slow physical vapor deposition speed, etc. Effects of improved performance, improved surface wear resistance, and improved average hardness

Active Publication Date: 2021-07-20
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coatings prepared by spraying have low bonding strength to the substrate; electroplating is harmful to the environment; physical vapor deposition is relatively slow

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
  • A composite coating material for improving the tribological properties of tc4 alloy and its preparation method
  • A composite coating material for improving the tribological properties of tc4 alloy and its preparation method
  • A composite coating material for improving the tribological properties of tc4 alloy and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 of the present invention is: a composite coating material for improving the tribological properties of TC4 alloy and a preparation method thereof.

[0051] The composite coating material is composed of the following raw materials by weight fraction: 5wt.%Ti 3 SiC 2 , 10wt.% Cu and the balance is Co.

[0052] The preparation method of above-mentioned composite coating material, comprises the following steps:

[0053] S1. Put the above raw materials into a DECO-PBM-V-0.4L vertical planetary ball mill and ball mill for 2 hours to obtain an alloy powder mixture, and dry it in a vacuum oven at 100°C for 2 hours;

[0054] S2, using 400 mesh, 600 mesh, 800 mesh, 1200 mesh and 2000 mesh sandpaper in turn to polish the TC4 alloy substrate;

[0055] S3. Use the LDM-8060 powder feeding laser to scan the surface of the TC4 alloy substrate by synchronous powder feeding method, and form a composite coating material on the surface of the TC4 alloy substrate; where the ...

Embodiment 2

[0058] Embodiment 2 of the present invention is: a composite coating material for improving the tribological properties of TC4 alloy and a preparation method thereof.

[0059] Its difference with Embodiment 1 is:

[0060] The composite coating material is composed of the following raw materials by weight fraction: 20wt.% Cu, 5wt.%Ti 3 SiC 2 and the balance is Co.

Embodiment 3

[0061] Embodiment 3 of the present invention is: a composite coating material for improving the tribological properties of TC4 alloy and a preparation method thereof.

[0062] Its difference with Embodiment 1 is:

[0063] Step S3: Use the LDM-8060 powder-feeding laser to scan the surface of the TC4 alloy substrate by synchronous powder-feeding method, and form a composite coating material on the surface of the TC4 alloy substrate; wherein, the output power is 1.6 kW, and the spot diameter is 2.5 mm , the scanning speed is 13 mm / s, the powder feeding rate is 12g / min, the defocus is -1mm, the overlap rate is 50%, and the energy density is 49.23 J / mm 2 .

[0064] Embodiment 4 of the present invention is: a composite coating material for improving the tribological properties of TC4 alloy and a preparation method thereof.

[0065] Its difference with Embodiment 1 is:

[0066] Step S3: Use the LDM-8060 powder-feeding laser to scan the surface of the TC4 alloy substrate by synchro...

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
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite coating material for improving the tribological properties of TC4 alloy and a preparation method thereof. The composite coating material is obtained by using raw materials through a laser cladding process, and the composite coating material includes the following raw materials: metal cobalt, metal copper and Ti 3 SiC 2 . The composite coating uses metal cobalt as a toughening phase in the coating system, which improves the hardness, wear resistance and corrosion resistance of the composite coating; the ternary lubricant Ti 3 SiC 2 TiC is formed during the cladding process, and TiC acts as a reinforcing phase to significantly improve the coating performance, while dense TiO is formed during high-temperature friction and wear 2 and SiO 2 The oxide film improves the self-lubrication of the coating; the soft metal Cu improves the thermal conductivity, electrical conductivity, self-lubrication and tribological properties of the composite coating.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a composite coating material for improving the tribological performance of TC4 alloy and a preparation method thereof. Background technique [0002] The service environment of aeroengines is very harsh, and at the same time, it is negatively affected by high temperature, high pressure, high speed and gas corrosion, so the requirements for materials are relatively special and strict. Ti-6Al-4V (brand TC4) alloy is one of the commonly used materials for compressor blades, discs and casings of aero-engines. It is widely used because of its corrosion resistance, high specific strength, and high temperature resistance. However, its low surface hardness and low temperature resistance greatly shorten its service life. Therefore, developing a composite coating with good tribological properties and improving the service life of engine parts on the surface of TC4 a...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C22C19/07C22C32/00B22F9/04B22F1/00
CPCC23C24/103C22C19/07C22C32/0052B22F9/04B22F2009/043B22F1/142
Inventor 刘秀波祝杨汪阳刘一帆孟元梁金
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com