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High damping titanium-nickel memory alloy/metal layered composite material

A memory alloy and composite material technology, which is applied in the field of titanium-nickel memory alloy/metal layered composite materials, can solve problems such as anisotropy of titanium-nickel memory alloy composite materials, and achieve good mechanical properties, high damping performance, and good mechanics. The effect of damping properties with

Active Publication Date: 2022-02-01
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of anisotropy in the performance of titanium-nickel memory alloy composite materials, the present invention proposes a high-damping titanium-nickel memory alloy / metal layered composite material

Method used

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  • High damping titanium-nickel memory alloy/metal layered composite material
  • High damping titanium-nickel memory alloy/metal layered composite material

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specific Embodiment approach 1

[0019] Embodiment 1: The high-damping titanium-nickel memory alloy / metal layered composite material in this embodiment is composed of several titanium-nickel memory alloy layers and several metal layers, and the titanium-nickel memory alloy layers and metal layers are arranged at intervals;

[0020] The elastic modulus of the metal layer is 1.5 to 7 times that of the titanium-nickel memory alloy;

[0021] The atomic percentage of Ni contained in the titanium-nickel memory alloy layer is 48%-52%.

[0022] The principles and beneficial effects of this embodiment are:

[0023] 1. In the layered composite material of this embodiment, the martensitic state of the titanium-nickel memory alloy layer has a low elastic modulus, about 30GPa; the metal layer has a high elastic modulus, which is 45-210GPa; the titanium-nickel memory alloy layer and the metal layer Overlapping, a high elastic modulus difference is formed between the layers, and when subjected to vibration loads, energy is...

specific Embodiment approach 2

[0029] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the total number of layers of the titanium-nickel memory alloy layer and the metal layer is 2 to 7 layers, including at least one titanium-nickel memory alloy layer and at least one layer metal layer. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0030] Embodiment 3: This embodiment is different from Embodiment 1 in that: the thickness of the titanium-nickel memory alloy layer and the metal layer are both 0.02-5 mm. Other steps and parameters are the same as those in the first embodiment.

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Abstract

The high-damping titanium-nickel memory alloy / metal layered composite material relates to a titanium-nickel memory alloy / metal layered composite material. The purpose is to solve the problem of anisotropy in the performance of the titanium-nickel memory alloy composite material. The high-damping titanium-nickel memory alloy / metal layered composite material is composed of several titanium-nickel memory alloy layers and several metal layers, and the titanium-nickel memory alloy layer and the metal layer are arranged at intervals; the elastic modulus of the metal layer is titanium-nickel 1.5-7 times that of the memory alloy; the atomic percentage of Ni contained in the titanium-nickel memory alloy layer is 48%-52%. The layered composite material of the invention combines the good mechanical properties of the metal layer and the high damping properties of the titanium-nickel memory alloy, has higher resistance to radiation and space corrosion, and can meet the requirements of different application fields. The invention is suitable for preparing titanium-nickel memory alloy / metal layer composite material.

Description

technical field [0001] The invention relates to a titanium-nickel memory alloy / metal layer composite material. Background technique [0002] With the development of society and the progress of science and technology, military industry, aerospace and civilian vehicles and other fields have higher and higher requirements for instrument precision and comfort. The vibration and noise generated by various types of machinery during operation will seriously interfere with their normal work, affect the user experience, and even shorten the life of the instrument. For example, the flywheel control mechanism is widely used in satellite attitude control. Due to the influence of machining accuracy and lubrication conditions, strong vibration will be generated during its operation, and the vibration will directly affect the precision components in the satellite, such as remote sensing imaging system, which will affect its accuracy and life. The current solution is mainly to design a vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/04B22F3/105C22C19/03B32B15/01
CPCB22F7/04B22F3/105C22C19/03B32B15/01B32B15/013B32B2307/558B32B2307/552B32B2307/302B32B2307/202
Inventor 武高辉刘凯芶华松杨文澍
Owner HARBIN INST OF TECH
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