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Ultrahigh-damping and high-strength metal-based composite material and preparation method thereof

A composite material and high-strength technology, applied in the direction of chemical instruments and methods, metal layered products, lamination devices, etc., can solve the problems of long production cycle, low success rate, complex process, etc., and achieve improved damping performance and high mechanical strength. The effect of damping and increasing energy dissipation capacity

Active Publication Date: 2021-07-16
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an ultra-high damping and high-strength metal matrix composite material and its preparation method. This method firstly uses the vacuum hot rolling technology to add the intrinsic high Damping enhanced phase multilayer graphene, prepared a multilayer graphene / CuAlMn shape memory alloy layered composite material with ultra-high damping and high strength, which overcomes the existing CuAlMn shape memory alloy prepared in the prior art The improvement of damping performance is limited, and the existing technology of preparing metal matrix composites with high damping and high mechanical properties has complicated process, long production cycle, low success rate, and the thin layer of the composite material Deficiencies such as easy instability

Method used

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  • Ultrahigh-damping and high-strength metal-based composite material and preparation method thereof
  • Ultrahigh-damping and high-strength metal-based composite material and preparation method thereof
  • Ultrahigh-damping and high-strength metal-based composite material and preparation method thereof

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Embodiment 1

[0040] This example is a comparative example.

[0041] CuAlMn shape memory alloy without any reinforcement phase prepared by casting process:

[0042] According to the CuAlMn shape memory alloy, Al accounts for 11.9% of the total mass of CuAlMn, Mn accounts for 2.5% of the total mass of CuAlMn, and the rest is composed of Cu. Weigh the required amount of raw material pure Cu, pure Al and electrolytic Mn, after that, the Pure Cu is placed in a graphite crucible in an intermediate frequency induction heating furnace. After heating up to Cu melting, add electrolytic Mn and pure Al in turn, and stir counterclockwise. After all the raw materials are melted evenly and kept warm for 3 minutes, quickly skim off the surface scum. Then pour it into a steel mold. After the CuAlMn shape memory alloy is solidified, put it into the resistance furnace again, and raise the temperature to 900 ° C. After keeping it for 10 minutes, put it into water at room temperature and quench it. CuAlMn sha...

Embodiment 2

[0046] It is a multilayer graphene / CuAlMn shape memory alloy layered composite material with ultra-high damping and high strength, and its composition is Cu-11.9Al-2.5Mn+1.0wt.%Cu 51 Zr 14 Inoculant plus 0.05wt.% multilayer graphene, the room temperature damping of the composite material is 0.0721, the tensile strength is 750.36MPa, and the elongation after fracture is 8.34%. The number of layers of the CuAlMn shape memory alloy laminated sheet is 17 layers .

[0047] The preparation method of the above-mentioned multilayer graphene / CuAlMn shape memory alloy layered composite material with ultra-high damping and high strength, the specific steps are as follows:

[0048] The first step is to prepare CuAlMn shape memory alloy laminated sheet:

[0049] Using the CuAlMn shape memory alloy ingot made by a refinement method of CuAlMn shape memory alloy grains disclosed in CN105568019B, the CuAlMn shape memory alloy ingot is sliced ​​using a wire cutting machine to obtain a single ...

Embodiment 3

[0057] It is a multilayer graphene / CuAlMn shape memory alloy layered composite material with ultra-high damping and high strength, and its composition is Cu-11.9Al-2.5Mn+1.0wt.%Cu 51 Zr 14 Inoculant plus 0.1wt.% multilayer graphene, the room temperature damping of the composite material is 0.0979, the tensile strength is 844.89MPa, and the elongation after fracture is 10.2%. The number of layers of the CuAlMn shape memory alloy laminated sheet is 17 layers .

[0058] In the preparation method of the multilayer graphene / CuAlMn shape memory alloy layered composite material with both ultra-high damping and high strength in this embodiment, except in the second step "take the above first step to prepare the CuAlMn shape memory alloy laminated plate 17 layers, use a scraper to evenly scrape the graphene on the surface of each layer of the plate, the amount of graphene is 0.05% of the mass fraction of the plate, in ", modify the amount of graphene to be 0.05% of the mass fraction o...

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Abstract

The invention discloses an ultrahigh-damping and high-strength metal-based composite material and a preparation method thereof, and relates to the technical field of composite materials. The composite material is composed of Cu-11.9Al-2.5Mn, 1.0 wt.% of a Cu51Zr14 nucleating agent and 0.05 wt.%-0.15 wt.% of multi-layer graphene, the room temperature damping of the composite material is 0.0444-0.0979, the tensile strength is 750.36 MPa-913.37 MPa, and the percentage elongation after fracture is 8.34%-13.48%. The composite material can better meet application requirements in the technical field of damping, and noise reduction. According to the preparation method of the material, the intrinsic high-damping reinforced-phase multi-layer graphene of a lamellar structure is added into a CuAlMn shape memory alloy by using a vacuum hot rolling technology for the first time, overcoming the defects that in the prior art, the damping improvement degree is limited, the process is complicated; the production period is long, and the like.

Description

technical field [0001] The technical solution of the invention relates to the technical field of composite materials, in particular to an ultra-high damping and high-strength metal matrix composite material and a preparation method thereof. Background technique [0002] With the rapid development of human civilization and modern industrial technology, various mechanical equipment and weapons are becoming more and more high-speed, efficient and automated. However, problems such as vibration, noise and fatigue fracture are becoming more and more prominent. In the industrial field, the vibration of equipment will not only accelerate the fatigue damage of the material or structure of the equipment, but also directly affect the normal use of the electronic devices and actuators of the equipment in severe cases; Due to the structural fatigue caused by vibration, the unavoidable noise generated during the use of submarines will seriously weaken its combat value; in the field of co...

Claims

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Application Information

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IPC IPC(8): B32B15/20B32B33/00B32B37/10B32B38/16B32B37/06C22C9/01
CPCB32B15/20B32B33/00B32B37/10B32B38/162B32B37/1054B32B37/06C22C9/01B32B2255/06B32B2255/20
Inventor 王清周焦志娴殷福星冀璞光张建军刘力刘亚飞
Owner HEBEI UNIV OF TECH
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