Unlock instant, AI-driven research and patent intelligence for your innovation.

A micro-nano tib 2 Preparation method of particle reinforced magnesium-lithium matrix composite material

A particle-reinforced, composite material technology, applied in metal processing equipment, transportation and packaging, coatings, etc., can solve the problems of easy burning and loss of wettability of magnesium-lithium melts, easy agglomeration, and insufficient micro- and nano-scale reinforcements. To achieve the effect of increasing the capture capacity, reducing particle burning, and improving the strengthening effect

Active Publication Date: 2021-08-03
SHANGHAI JIAO TONG UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the lack of strength and stiffness of magnesium-lithium alloys, the general micro-nano-scale ceramic reinforcement particles are easily burned when directly added to the magnesium-lithium melt, and the wettability in the magnesium-lithium melt is insufficient, and the micro-nano-scale reinforcements are easy to agglomerate phenomenon, providing a micro-nano TiB 2 Preparation method of particle reinforced magnesium-lithium matrix composite material

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 micro-nano tib <sub>2</sub> Preparation method of particle reinforced magnesium-lithium matrix composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment relates to a kind of micro-nano TiB 2 Reinforced magnesium-lithium-based composite material, in the magnesium-lithium-based composite material, the mass percentage of each component is: Li 14%, Al 2%, Zn 1%, Y 0.5%, TiB 2 Particles 14%, the balance is Mg and other impurities. TiB 2 The particle size of the particles was 15 μm.

[0033] This embodiment relates to a kind of TiB 2 A method for preparing a reinforced magnesium-lithium-based composite material. The process includes three stages: pretreatment of the reinforcement, smelting under a protective atmosphere, and plastic deformation:

[0034] Reinforcement pretreatment: TiB 2 Granules and magnesium chips are mixed and ball milled on a planetary ball mill to prepare mixed powder. The ball milling speed is 400rpm, the ball milling time is 24h, and the ball-to-material ratio is 10:1.

[0035] Melting process under protective atmosphere: Melt magnesium element, lithium element, aluminum element, zi...

Embodiment 2

[0039] This embodiment relates to a kind of micro-nano TiB 2 Reinforced magnesium-lithium-based composite material, in the magnesium-lithium-based composite material, the mass percentage of each component is: Li 10%, Al 4%, Zn 3%, Y 2%, TiB 2 Particles 8%, the balance is Mg and other impurities. TiB 2 The particle size of the particles was 8 μm.

[0040] This embodiment relates to a kind of TiB 2 A method for preparing a reinforced magnesium-lithium-based composite material. The process includes three stages: pretreatment of the reinforcement, smelting under a protective atmosphere, and plastic deformation:

[0041] Reinforcement pretreatment: TiB 2 Granules and magnesium chips are mixed and ball milled on a planetary ball mill to prepare mixed powder. The ball milling speed is 800rpm, the ball milling time is 4h, and the ball-to-material ratio is 4:1.

[0042] Melting process under protective atmosphere: melt magnesium element, lithium element, aluminum element, zinc ele...

Embodiment 3

[0046] This embodiment relates to a kind of micro-nano TiB 2 Reinforced magnesium-lithium-based composite material, in the magnesium-lithium-based composite material, the mass percentage of each component is: Li 8%, Al 3%, Zn 2%, Y 0.5%, TiB 2 Granules 4%, the balance is Mg and other impurities. TiB 2 The particle size of the particles was 0.8 μm.

[0047] This embodiment relates to a kind of TiB 2 A method for preparing a reinforced magnesium-lithium-based composite material. The process includes three stages: pretreatment of the reinforcement, smelting under a protective atmosphere, and plastic deformation:

[0048] Reinforcement pretreatment: TiB 2 Granules and magnesium chips are mixed and ball milled on a planetary ball mill to prepare mixed powder. The ball milling speed is 150rpm, the ball milling time is 48h, and the ball-to-material ratio is 20:1.

[0049] Melting process under protective atmosphere: melt magnesium element, lithium element, aluminum element, zinc...

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
densityaaaaaaaaaa
elastic modulusaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a micro-nano TiB 2 The invention discloses a method for preparing a particle-reinforced magnesium-lithium-based composite material, which belongs to the field of metal-based composite materials and its preparation. The micro-nano TiB 2 The mass ratio of each component in the particle reinforced magnesium-lithium matrix composite material is: Li 6‑15%, Al 2‑5%, Zn 0‑3%, Y 0.1‑2%, TiB 2 0.5‑15%, the balance being Mg and unavoidable impurities. The preparation method of the composite material includes three stages of pretreatment of reinforcement, smelting under protective atmosphere and plastic deformation. The invention realizes the uniform distribution of the reinforcement in the matrix alloy and the good interface bonding with the alloy matrix through the pretreatment of the reinforcement, smelting and plastic deformation in a protective atmosphere, and obtains high strength and elastic modulus with a certain plastic composite material. Moreover, the technological process of the invention is simple and controllable, suitable for mass production, and shows broad application prospects in the aerospace field.

Description

technical field [0001] What the present invention relates to is a kind of micro-nanometer TiB 2 A method for preparing particle-reinforced magnesium-lithium-based composite materials, especially involving a micro-nano TiB 2 The invention discloses a method for preparing particle-reinforced Mg-Li-Al-Zn-Y composite material, which belongs to the field of metal matrix composite material and its preparation. Background technique [0002] The demand for ultra-light and high-strength structural materials in modern industry is becoming more and more urgent, and magnesium-lithium alloys, as the lightest metal structural materials, are also receiving more and more attention. The density of magnesium-lithium alloy is generally 1.20-1.65g / cm 3 , At the same time, it has high specific strength, specific stiffness, good electromagnetic shielding performance and machinability, so magnesium-lithium alloys are widely used in military, aerospace and electronic products and other fields. H...

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): C22C23/00C22C32/00C22C1/05C22C1/03C22F1/06B22F1/02
CPCC22C23/00C22C32/0073C22C1/05C22C1/0408C22C1/03C22F1/06B22F1/17
Inventor 丁德华刘文才吴国华张亮廖光澜
Owner SHANGHAI JIAO TONG UNIV