TiNiNb/NbTi memory alloy composite material and preparation method thereof

A composite material and memory alloy technology, which is applied to the composite material of TiNiNb memory alloy and its preparation, and the field of TiNiNb/NbTi memory alloy composite material and its preparation, can solve the problems of limited application of damping materials, low yield strength, etc., to meet the demand , good plasticity and toughness
CN101654753AInactive Publication Date: 2010-02-24CHINA UNIV OF PETROLEUM (BEIJING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Publication Date
2010-02-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a TiNiNb / NbTi memory alloy composite material and a preparation method thereof. The composite material comprises the following compositions in percentage by weight: 31 to 95 atomic percent of Nb element, and Ti element and Ni element in an atomic ratio of 1:1 to 2.5:1, wherein the total atomic percentage of the Ti element, the Ni element and the Nb element is 100 percent.The preparation method comprises the following steps: selecting elementary niobium, titanium and nickel with the purity of more than 99 weight percent in the composition ratio of the TiNiNb / NbTi memory alloy composite material; and putting the elementary niobium, titanium and nickel into a melting furnace at a vacuum degree of higher than 10-1 Pa or with inert gas protection to be melted into the TiNiNb / NbTi memory alloy composite material. The composite material provided by the invention has the property of a memory alloy intelligent composite material, and has the characteristics of high strength, good interface bonding, wide application temperature range and the like.
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Description

technical field

[0001] The invention belongs to the field of metal composite materials, and relates to a TiNiNb / NbTi memory alloy composite material and a preparation method thereof, in particular to a composite material with an in-situ self-generated TiNiNb memory alloy and a preparation method thereof. Background technique

[0002] Due to the characteristics of shape memory effect, superelasticity, viscoelasticity, and high damping, TiNi-based shape memory alloys have attracted more and more attention from scholars at home and abroad for their intelligent properties of composite materials. Combining millimeter-scale TiNi wires in aluminum (alloy), magnesium alloy, polymer and cement can make the composite material have the characteristics of self-reinforcing when the temperature rises, controlling deformation, inhibiting crack growth, improving impact toughness, shock absorption and noise reduction; 200580036111.7 No. patent application discloses a memory alloy fiber-reinf...

Claims

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