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Magnesium-based composite material with titanium or titanium alloy as skeleton enhancer and preparation method of magnesium-based composite material

A composite material and reinforcement technology, applied in the field of magnesium-based composite materials and preparation, can solve the problems of reducing damping performance, the mechanical properties of magnesium-based composite materials cannot be effectively regulated, and the material density is not significantly improved, and achieves improved strength and design. The effect of strong stability and controllability, and short cycle

Active Publication Date: 2020-06-09
JIHUA LAB
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a magnesium-based composite material with titanium or titanium alloy as a skeleton reinforcement and a preparation method thereof, utilizing a titanium or titanium alloy skeleton with a bionic structure to reinforce magnesium or magnesium alloy, And 3D printing technology is used to realize the precise design and control of the skeleton structure in magnesium-based composite materials, so as to significantly improve the strength, stiffness, fracture toughness, Impact resistance, aiming to solve the problem that the mechanical properties of existing magnesium-based composites cannot be effectively adjusted

Method used

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  • Magnesium-based composite material with titanium or titanium alloy as skeleton enhancer and preparation method of magnesium-based composite material
  • Magnesium-based composite material with titanium or titanium alloy as skeleton enhancer and preparation method of magnesium-based composite material
  • Magnesium-based composite material with titanium or titanium alloy as skeleton enhancer and preparation method of magnesium-based composite material

Examples

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Effect test

Embodiment 1

[0064] In this example, a TC4 titanium alloy reinforced magnesium-based composite material with a brick-wall structure imitating abalone shell nacre was prepared. The raw materials used include titanium-aluminum-vanadium alloy powder (average particle size is 80μm, aluminum is 5.5-6.75%, vanadium is 3.4-4.5%, and the rest is titanium), metal magnesium block. Concrete preparation process is as follows:

[0065] 1) Use the 3D visualization solid simulation software Autodesk Inventor Professional (AIP2019) to design and establish a 3D model of the TC4 titanium alloy reinforcement skeleton with a brick-wall structure. like figure 1 As shown, the bionic structure of the model is established based on the design principles of the brick-wall structure represented by the abalone shell nacre. The model was imported into the Realizer SLM 100 metal 3D printer formed by laser selective melting technology. Under the protection of argon, the titanium-aluminum-vanadium alloy powder was prep...

Embodiment 2

[0070] In this example, a TC4 titanium alloy skeleton reinforced AZ91D magnesium alloy-based composite material with a cross-laminated structure imitating the clam was prepared. The raw materials used include titanium-aluminum-vanadium alloy powder (average particle size is 80μm, aluminum 5.5-6.75%, vanadium 3.4-4.5%, the rest is titanium), AZ91D magnesium alloy block. Concrete preparation process is as follows:

[0071] 1) This step is similar to step 1) in Example 1, the difference is that the bionic structure of the 3D printed TC4 titanium alloy skeleton is established based on the design principle of the cross lamination structure represented by the clam shell ,like Figure 4 As shown, the printed TC4 titanium alloy skeleton is shown in Figure 5a , the dimensions of the skeleton are 90×50×5 mm 3 , the porosity is 47.16%;

[0072] 2) This step is similar to step 2) in Example 1, except that the metal used to infiltrate the TC4 titanium alloy skeleton is AZ91D magnesium a...

Embodiment 3

[0076] In this example, a titanium-skeleton-reinforced magnesium-based composite material with a helical braided structure imitating an arthropod exoskeleton was prepared. The raw materials used include titanium powder (average particle size is 15μm), metal magnesium block. Concrete preparation process is as follows:

[0077] 1) This step is similar to step 1) in Example 1, the difference is that the bionic structure of the 3D printed titanium skeleton is established based on the design principles of the helical braided structure represented by the arthropod exoskeleton, such as Image 6 As shown, the printed titanium skeleton is shown in Figure 7a , the size of the skeleton is 90×50×5mm 3 , the porosity is 65.30%;

[0078] 2) This step is similar to step 2) in Example 1, the difference is that the metal magnesium is impregnated with a titanium skeleton, and the impregnation temperature is 850°C;

[0079] 3) This step is similar to step 3) in Example 1, the difference is ...

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Abstract

The invention discloses a magnesium-based composite material with titanium or a titanium alloy as a skeleton enhancer and a preparation method of the magnesium-based composite material. The magnesium-based composite material comprises the skeleton enhancer and a magnesium matrix; the skeleton enhancer is a skeleton designed based on a bionic structure, and the magnesium matrix impregnates the skeleton enhancer to compositely form the composite material with the bionic structure; and the bionic structure is a brick-wall structure imitating an abalone shell pearl layer, a cross lamination structure imitating a saxidomus purpuratus shell or a spirally braided structure imitating an arthropod exoskeleton. Magnesium or a magnesium alloy is enhanced through the titanium or titanium alloy skeleton with the bionic structure, the skeleton structure in the magnesium-based composite material is accurately designed and controlled through a 3D printing technology, and thus the strength, stiffness,fracture toughness and impact resistance of the magnesium or the magnesium alloy are significantly improved without significantly increasing the material density and lowering damping performance.

Description

technical field [0001] The invention relates to the field of metal-based composite materials, and mainly relates to a magnesium-based composite material with titanium or titanium alloy as a skeleton reinforcement and a preparation method thereof. Background technique [0002] Under the premise of ensuring safe service, the realization of lightweight structural materials can effectively reduce the weight of structural parts, thereby helping to save energy and reduce environmental pollution, so it has important scientific significance and practical value. For example, in the field of transportation, the lightweight design of automobiles can improve fuel efficiency, reduce fuel consumption and exhaust emissions, so it has become one of the main trends in today's automobile development. The realization of lightweight structural materials mainly depends on the improvement of their mechanical properties such as specific strength and specific stiffness. Magnesium and magnesium all...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F3/11B22F3/26B22D23/04C22C23/00C22C14/00B33Y10/00B33Y80/00
CPCB22F3/11B22F3/26B22D23/04C22C23/00C22C14/00B33Y10/00B33Y80/00B22F10/00B22F10/80B22F10/36B22F12/41B22F10/28Y02P10/25
Inventor 刘增乾张明阳张哲峰
Owner JIHUA LAB
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