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

High-entropy alloy matrix self-lubrication composite with imitation lattice structure and containing solid lubricant

A technology of solid lubricants and high-entropy alloys, applied in the field of composite materials, can solve the problems of poor mechanical and tribological properties of composite materials, achieve good mechanical properties and tribological properties, good application prospects, and prolong service life

Active Publication Date: 2020-07-10
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF10 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology belongs to the traditional powder metallurgy technology, and the mechanical and tribological properties of the prepared composite materials are still poor

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
  • High-entropy alloy matrix self-lubrication composite with imitation lattice structure and containing solid lubricant
  • High-entropy alloy matrix self-lubrication composite with imitation lattice structure and containing solid lubricant
  • High-entropy alloy matrix self-lubrication composite with imitation lattice structure and containing solid lubricant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 A high-entropy alloy-based self-lubricating composite material with a pseudo-lattice structure containing a solid lubricant, which uses CoCrFeNiMo 0.2 The high-entropy alloy is used as the matrix, the unit cell lattice of the pseudo-lattice structure is SC structure, and the solid lubricant filled is graphite + MoS 2 . Concrete preparation method is as follows:

[0035] ⑴Establish the model of the SC lattice structure unit cell on the computer (such as figure 1 ), the side length of the SC lattice unit cell is 0.1mm, the cross-section of the connecting rod is cylindrical, and the diameter of the cylinder is 0.02mm. By periodically arranging 1000×1000×1000 unit cells, the composition size is 100mm×100mm×100mm Pseudo-lattice structure.

[0036] (2) Input the model into selective laser melting (SLM) metal 3D printer, using 1~6μm CoCrFeNiMo 0.2 The high-entropy alloy powder is used as the raw material, and the 316 stainless steel plate is used as the printing ...

Embodiment 2

[0045] Example 2 A high-entropy alloy-based self-lubricating composite material with imitation lattice structure containing solid lubricants. The composite material uses AlCoCrFeNi high-entropy alloy as the matrix, and the unit cell lattice of the imitation lattice structure is a BCC structure. The solid lubricant filled for MoS 2 +Hexagonal BN+Graphite. Concrete preparation method is as follows:

[0046] ⑴Establish the model of the BCC lattice structure unit cell on the computer (such as figure 2 ), the side length of the BCC lattice unit cell is 5mm, the connecting rod is a square, and the side length of the square is 3mm. By periodically arranging 50×50×50 unit cells, a pseudo-lattice structure with a size of 250mm×250mm×250mm is formed. .

[0047] (2) Input the model into the selective electron beam melting (SEBM) metal 3D printer, use 20~40μm AlCoCrFeNi high-entropy alloy powder as raw material, use 316 stainless steel plate as the printing substrate, and print under ...

Embodiment 3

[0056] Example 3 A high-entropy alloy-based self-lubricating composite material with a pseudo-lattice structure containing a solid lubricant, which uses Al 0.2 co 1.5 CrFeNi 1.5 Ti 0.5 CnZn high-entropy alloy is used as the matrix, the unit cell lattice of imitation lattice structure is FCC structure, and the solid lubricant filled is graphite+MoS 2 +PbO+BaF 2 +CaF 2 +CeF 3 +Ag. Concrete preparation method is as follows:

[0057] ⑴Establish the model of the FCC lattice structure unit cell on the computer (such as image 3 ), the side length of the FCC lattice unit cell is 5mm, the connecting rod is cylindrical, and the diameter of the cylinder is 3mm. By periodically arranging 50×50×50 unit cells, a pseudo-lattice with a size of 250mm×250mm×250mm is formed. structure.

[0058] (2) Input the model into the SEBM metal 3D printer, using 15~50μm Al 0.2 co 1.5 CrFeNi 1.5 Ti 0.5 CnZn high-entropy alloy powder was used as raw material, and 316 stainless steel plate was u...

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
sizeaaaaaaaaaa
densityaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-entropy alloy matrix self-lubrication composite with an imitation lattice structure and containing a solid lubricant. The high-entropy alloy matrix self-lubrication composite is composed of a porous matrix and the solid lubricant which is filled in the matrix and contains aluminum chromium phosphate as a binder. A matrix refers to a porous high-entropy alloy with the imitation lattice structure prepared by metal 3D printing technologies, such as selective laser melting molding or selective electron beam melting molding with high-entropy alloy powder as a raw material. The high-entropy alloy matrix self-lubrication composite has the characteristics of light weight, high strength and toughness, and good tribological performance in a wide temperature range, andhas a good application prospect in high-tech fields such as aviation, aerospace and weapons.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a high-entropy alloy-based self-lubricating composite material with imitation lattice structure containing a solid lubricant. Background technique [0002] Metal-based self-lubricating materials can provide better lubrication in extremely harsh conditions such as heavy load, high temperature, cryogenic, vacuum or impact, and are widely used in energy, metallurgy, weapons, aviation and aerospace and other fields. Metal-based self-lubricating composite materials can be divided into copper-based, iron-based, cobalt-based and nickel-based series according to the different matrix metals. Generally, powder metallurgy technology is used to compound solid lubricants into the metal matrix. However, in the composite material prepared by the mixed element method, the solid lubricant is uniformly dispersed in the metal matrix, and the addition of the solid lubricant will deterior...

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 Applications(China)
IPC IPC(8): B22F3/105B22F3/11B22F3/24B22F3/26C22C30/00C22C30/02C22C30/04C22C30/06
CPCB22F3/11B22F3/26C22C30/00B22F3/24C22C30/06C22C30/02C22C30/04B22F10/00B22F10/28Y02P10/25
Inventor 张爱军孟军虎韩杰胜苏博
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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