CN103088234A - Low interstitial titanium-nickel-aluminum-vanadium shape memory alloy material for low temperature hyperelasticity - Google Patents
Low interstitial titanium-nickel-aluminum-vanadium shape memory alloy material for low temperature hyperelasticity Download PDFInfo
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- CN103088234A CN103088234A CN2011103328635A CN201110332863A CN103088234A CN 103088234 A CN103088234 A CN 103088234A CN 2011103328635 A CN2011103328635 A CN 2011103328635A CN 201110332863 A CN201110332863 A CN 201110332863A CN 103088234 A CN103088234 A CN 103088234A
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Abstract
The present invention relates to a low interstitial titanium-nickel-aluminum-vanadium shape memory alloy material for low temperature hyperelasticity, wherein the material is an alloy material capable of providing an increased low temperature non-linear hyperelasticity through different aging treatments. Main components of the low interstitial titanium-nickel-aluminum-vanadium shape memory alloy comprise, by weight, 54.0-60.0% of nickel, 40.0-50.0% of titanium, 0.15-0.40% of an aluminum-vanadium alloy, and the balance of unavoidable impurities, wherein the impurities comprise, by weight, less than or equal to 0.02% of carbon, less than or equal to 0.05% of oxygen and nitrogen, and less than or equal to 0.005% of hydrogen. According to the present invention, when a low temperature tension strain epsilont of the low interstitial titanium-nickel-aluminum-vanadium shape memory alloy achieves 6% after the alloy is subjected to the aging treatments with different times at temperatures such as 300 DEG C and 400 DEG C, a residual strain epsilonr after unloading is less than or equal to 0.3%, and a good non-linear low temperature hyperelasticity performance is provided; and the low interstitial titanium-nickel-aluminum-vanadium shape memory alloy material is mainly used for producing eyeglass frames, cell phone antennas, hyperelasticity components and the like.
Description
Technical field
The present invention relates to a kind of low temperature super elastic with low gap titanium nickel aluminium vanadium shape memory alloy material, have the non-linear elastic performance of good low temperature through material after the differing temps ageing treatment.
Background technology
The non-linear super-elasticity of original titanium nickel aluminum vanadium alloy material is undesirable, and for the non-linear super-elasticity of the low temperature that satisfies material, after the alloy material carried out necessary special process and timeliness processing, bill of material revealed the non-linear super-elasticity of good low temperature.
Its foreign matter content of low gap titanium nickel aluminum vanadium alloy that the present invention relates to is lower, C≤0.020wt%, O+N≤0.050wt%, H≤0.005wt%; The starting materials low temperature of virgin alloy material (20～0 ℃) tensile strength is 900～1000MPa, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r〉=1.0%, follow-up cold deformation 20～30%; After ageing treatment, Tensile strength can reach 1000～1200MPa, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%, have good non-linear super-elasticity, material has good non-linear super-elasticity in-20～0 ℃ of temperature range; Be mainly used in and make spectacle frame, antenna for mobile phone, super-elasticity components and parts etc.
Summary of the invention
The objective of the invention is to propose the non-linear super-elasticity of a kind of low temperature low gap titanium nickel aluminium vanadium shape memory alloy material, this alloy material foreign matter content is low, after ageing treatment, has the non-linear elastic performance of good low temperature.
A kind of low gap titanium nickel aluminum vanadium alloy material of the present invention is comprised of the nickel (Ni) of 40～50wt% titanium (Ti), 54～60wt%, the aluminium vanadium (AlV) of 0.15～0.40wt%, and all the other are inevitable impurity.
Described low gap titanium nickel aluminum vanadium alloy material, its component is Ti
40-50Ni
54-60(AlV)
0.15-0.40
Described titanium nickel aluminum vanadium alloy material, starting materials low temperature tensile strength is 900～1000MPa, and yield strength is 500MPa～600MPa, and elongation after fracture is greater than 30%, room temperature tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r〉=1.0%; Follow-up cold deformation is 20～30%.Through after different timeliness thermal treatments, tensile strength can reach 1000～1200MPa, and yield strength is 600MPa～700MPa, and unit elongation is 30～40%, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%; Follow-up cold deformation can reach 60～70%.
A kind of titanium nickel aluminum vanadium alloy material preparation method of the present invention comprises the following steps:
(1) take 0 grade of titanium sponge (Ti), 1 grade of electrolytic nickel (Ni), aluminum-vanadium alloy (AlV) by proportioning;
(2) wherein titanium sponge is pressed into Φ 30mm electrode block, and sheet nickel rolls into Φ 130mm nickel cylinder.Titanium sponge electrode block and aluminum-vanadium alloy are added in the nickel cylinder, and evenly distribution, compacting, be prepared into the induction melting electrode.Electrode carries out melting in induction melting furnace in a vacuum frequently, and melting pours into the TiNiAlV alloy cast ingot after finishing.
(3) with the above-mentioned low gap TiNiAlV alloy cast ingot that makes, use air hammer to be forged into 50mm bar base, then be rolled into Φ 8.5mm line base, by bar, the silk material of hot pull output Φ 0.8～Φ 10mm trimmed size; The cold drawn one-tenth Φ of roller die drawing 0.2～Φ 0.8mm trimmed size silk material; Or be rolled into the sheet material of the trimmed size of δ 2.0～0.7mm.
The advantage of low gap TiNiAlV alloy material of the present invention:
(1) low gap TiNiAlV alloy of the present invention has lower foreign matter content, C≤0.020wt% especially, O+N≤0.050wt%, H≤0.005wt%.
(2) has the non-linear super-elasticity of good low temperature.
(3) after different ageing treatment, low temperature tensile strength is 1000～1100MPa, yield strength is 450MPa～500MPa, unit elongation is greater than 30%, after overaging thermal treatment, low temperature tensile strength is 1000～1200MPa, yield strength is 600MPa～700MPa, and unit elongation is 30～40%, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%; Follow-up cold deformation can reach 60～70%.
Description of drawings
Fig. 1 is tension test curve and the stress-strain curve of titanium nickel aluminum vanadium alloy wire rod.
Fig. 2 is the tension test curve of alloy wire after ageing treatment.
Fig. 3 is the stress-strain curve of alloy wire after ageing treatment.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
The present invention is a kind of low gap titanium nickel aluminum vanadium alloy material, be comprised of the Ni of 40～50wt%Ti, 54～60wt%, the AlV of 0.15～0.40wt%, and the content sum of above-mentioned each composition is 100%.
Embodiment 1:
A kind of titanium nickel aluminum vanadium alloy material preparation method of the present invention and step are as follows:
(1) taking purity by proportioning is that 99.9% 0 grade of titanium sponge (Ti), purity are that 99.9% 1 grade of electrolytic nickel (Ni), purity are 99.9% aluminum-vanadium alloy (AlV);
(2) wherein titanium sponge is pressed into Φ 30mm electrode block, and sheet nickel rolls into Φ 130mm nickel cylinder.Titanium sponge electrode block and aluminum-vanadium alloy and industrial calcium grain are added in the nickel cylinder, evenly distribute, compacting, be prepared into the induction melting electrode.Electrode carries out melting in induction melting furnace in a vacuum frequently, and melting pours into the TiNiAlV alloy cast ingot after finishing.
(3) with the above-mentioned low gap TiNiAlV alloy cast ingot that makes after homogenizing is processed and is stripped off the skin, use air hammer to be forged into 50mm bar base at 800～850 ℃, be rolled into Φ 8.5mm line base at 800～850 ℃.Through 580～800 ℃ of hot pull output Φ 2.0mm trimmed size silk materials.
Then (4) 300 ℃ of different time ageing treatment carry out the test of tension test and stress-strain cycle, and test is carried out on universal tensile testing machine, and rate of extension is 1.0mm/min, and draft temperature is-10 ℃.
The TiNiAlV alloy wire has good low temperature tensile strength, and tensile strength 〉=900MPa is through after the ageing treatment of differing temps, low temperature tensile strength is 1000～1200MPa, yield strength is 550～700MPa, and unit elongation is 30～50%, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%.
Embodiment 2:
(1), (2), (3) are identical with example 1 step;
Then (4) 400 ℃ of different time ageing treatment carry out the test of tension test and stress-strain cycle, and test is carried out on universal tensile testing machine, and rate of extension is 1.0mm/min, and draft temperature is-10 ℃.
The TiNiAlV alloy wire has good low temperature tensile strength, and tensile strength is 〉=900MPa, through after the ageing treatment of differing temps, low temperature tensile strength is 1200～1300MPa, yield strength is 450～600MPa, and unit elongation is 20～40%, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%.
Low gap TiNiAlV alloy wire of the present invention has good low temperature tensile strength, tensile strength 〉=900MPa, after ageing treatment through 300 ℃ and 400 ℃ different times, low temperature tensile strength is 1000～1300MPa, yield strength is 550～700MPa, unit elongation is 20～40%, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%.After ageing treatment, the mechanical property of wire rod and residual strain are as shown in drawings.
Claims (3)
1. a low temperature super elastic with low gap titanium nickel aluminium vanadium shape memory alloy material, is characterized in that the main group of components of alloy becomes (weight percent): nickel 54%-60%, titanium 40%-50%, aluminum-vanadium alloy 0.15-0.40%; Other are a small amount of inevitably impurity.
2. a kind of low temperature super elastic according to claim 1 is with low gap titanium nickel aluminium vanadium shape memory alloy material, and it is characterized in that: titanium nickel aluminum vanadium alloy wire rod has lower foreign matter content; Foreign matter content: carbon≤0.02%, oxygen+nitrogen≤0.05%, hydrogen≤0.005%.
3. a kind of low temperature super elastic according to claim 1 is with low gap titanium nickel aluminium vanadium shape memory alloy material, it is characterized in that: low gap TiNiAlV alloy wire of the present invention has good low temperature tensile strength, tensile strength 〉=900MPa, after ageing treatment through 300 ℃ and 400 ℃ different times, low temperature tensile strength is 1000～1300MPa, yield strength is 550～700MPa, and unit elongation is 20～40%, cryogenic tensile dependent variable ε
tWhen reaching 6%, residual strain amount ε after unloading
r≤ 0.3%, this alloy material has the non-linear super-elasticity of good low temperature.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070773A (en) * | 2017-12-18 | 2018-05-25 | 西安赛特思迈钛业有限公司 | A kind of Ni-based hexa-atomic memorial alloy of medical titanium |
| CN108723251A (en) * | 2018-04-18 | 2018-11-02 | 沈阳大学 | A kind of preparation process of Low rigidity TiNi alloy spring |
| CN114908265A (en) * | 2022-06-02 | 2022-08-16 | 西安斯塔克材料科技有限公司 | Preparation method of TiNiAlV quaternary alloy filament |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740361A (en) * | 2004-08-25 | 2006-03-01 | 西安赛特金属材料开发有限公司 | Low temperature super elastic four-component Ni-Ti alloy |
| CN101386938A (en) * | 2008-10-09 | 2009-03-18 | 镇江忆诺唯记忆合金有限公司 | NiTiVAL shape memory alloy for medical apparatus |
| CN102094138A (en) * | 2009-12-10 | 2011-06-15 | 西安赛特金属材料开发有限公司 | Nickel titanium calcium base shape memory alloy |
-
2011
- 2011-10-28 CN CN2011103328635A patent/CN103088234A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740361A (en) * | 2004-08-25 | 2006-03-01 | 西安赛特金属材料开发有限公司 | Low temperature super elastic four-component Ni-Ti alloy |
| CN101386938A (en) * | 2008-10-09 | 2009-03-18 | 镇江忆诺唯记忆合金有限公司 | NiTiVAL shape memory alloy for medical apparatus |
| CN102094138A (en) * | 2009-12-10 | 2011-06-15 | 西安赛特金属材料开发有限公司 | Nickel titanium calcium base shape memory alloy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070773A (en) * | 2017-12-18 | 2018-05-25 | 西安赛特思迈钛业有限公司 | A kind of Ni-based hexa-atomic memorial alloy of medical titanium |
| CN108723251A (en) * | 2018-04-18 | 2018-11-02 | 沈阳大学 | A kind of preparation process of Low rigidity TiNi alloy spring |
| CN114908265A (en) * | 2022-06-02 | 2022-08-16 | 西安斯塔克材料科技有限公司 | Preparation method of TiNiAlV quaternary alloy filament |
| CN114908265B (en) * | 2022-06-02 | 2023-10-27 | 西安斯塔克材料科技有限公司 | Preparation method of TiNiAlV quaternary alloy filament |
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Application publication date: 20130508 |