CN105349923A - Treatment process for shape memory alloy wire - Google Patents
Treatment process for shape memory alloy wire Download PDFInfo
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- CN105349923A CN105349923A CN201510925913.9A CN201510925913A CN105349923A CN 105349923 A CN105349923 A CN 105349923A CN 201510925913 A CN201510925913 A CN 201510925913A CN 105349923 A CN105349923 A CN 105349923A
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Abstract
The invention provides a treatment process for a shape memory alloy wire. The treatment process comprises the following steps: 1) the shape memory alloy wire is enabled to be in an initial cold-drawing state and then annealing treatment is carried out; and 2) aging treatment of the shape memory alloy wire is carried out. The invention further provides the shape memory alloy wire obtained by the process. According to the treatment process for the shape memory alloy wire, nickel-titanium shape memory alloy wire with an ultrahigh damping function can be obtained; the alloy wire can be used as a main damping source and deigned into various devices; and huge application potential is achieved in the fields such as the war industry, aeronautics and astronautics, automobiles, buildings and the like.
Description
Technical field
The invention belongs to field of alloy material, relate to a kind for the treatment of process of shape memory alloy wire material, be specifically related to a kind of Treatment technique for processing of niti-shaped memorial alloy silk material, thus obtain the niti-shaped memorial alloy silk material with superelevation damping function.
Background technology
Current, mechanical means is tending towards at a high speed, efficient and automatization, and the vibration thereupon caused, noise and FATIGUE FRACTURE PROBLEMS are also more and more outstanding.Develop and apply the damping alloy with high in-fighting, effectively can reduce nuisance vibration and noise, obstruction Vibration propagation, and reduce resonance peak stress.Wherein, the in-fighting of alloy refers to that the lattice defect of elastic wave and alloy interacts, and makes the phenomenon of mechanical energy dissipative.Typical crystal defect comprises point defect, dislocation, crystal boundary and twin, magnetic domain etc., and researchist according to the understanding to dependency between these defect characteristic and in-fightings, designs and develops polytype damping alloy just.Have concurrently in the alloy of high damping high strength what develop at present, damping alloy based on Twin Defects in-fighting shows fabulous damping-mechanical property, wherein very typically have and easily move the martensitic NiTi of twin structure (Ti-Ni) base, copper (Cu) base and copper-manganese (Mn-Cu) base marmem etc., specifically see the various damping material damping value of Fig. 1 and tensile strength integrated data table.As can be known from Fig. 1, the damping capacity of material can represent with damping value or Internal friction physically, shows as Q in figure
-1, the numerical value of tan δ, Q
-1=tan δ., Fig. 1 indicates the intensity of various damping material and the over-all properties of damping, wherein table in the top-right strength of materials and damping capacity all good.For niti material, in the martensitic state, its damping value reaches 0.05.
Recent years, material supply section scholars constantly regulated and controled by microtexture, optimizes the damping capacity of these shape memory alloys.As by the mode of alloying, in Ti-Ni alloy, mix copper, its damping value can reach the level of 0.08, but still has gap apart from the damping capacity needed for desirable vibration and noise reducing material.In addition, Ti-Ni alloy, mauganin often mix protium, solid solution hydrogen atom and martensitic twin interaction, as shown in Figure 2, one group of relaxation internal friction peak can be obtained, its damping value can reach close to 0.2, but the coverage of this Internal Friction Peak is between-80 ~-30 DEG C, is not suitable for conventional application.Also scientist is had by the adjustment of alloying element, develop titanium palladium (Ti-Pd) base marmem, as shown in Figure 3, the interaction relaxation internal friction peak of its hydrogen atom and martensitic twin is close near room temperature, but obviously palladium element fancy price also can limit the Industry Promotion on a large scale of this kind of damping material.
Summary of the invention
The deficiency of existing damp alloy material in view of the above, the object of the present invention is to provide a kind for the treatment of process of shape memory alloy wire material, this kind for the treatment of process is applicable to niti-shaped memorial alloy silk material, controls its grain-size and precipitated phase tissue thus acquisition has the niti-shaped memorial alloy silk material of superelevation damping function by processing and thermal treatment process.Use this superelevation damping shape memory alloy wire material can build various damping device, play an important role at military project, space flight and aviation and other various industrial circle.
For achieving the above object and other relevant objects, first aspect present invention provides a kind for the treatment of process of shape memory alloy wire material, comprises the following steps:
1), after making shape memory alloy wire material be in initial cold-drawn state, anneal is carried out;
Preferably, described shape memory alloy wire material is niti-shaped memorial alloy silk material.
Above-mentioned shape memory alloy wire material obtains by this area ordinary method, namely adds each elementary composition by proportioning, melting, shaping rear obtained.
Preferably, the crystal particle scale of the cold-drawn state of described shape memory alloy wire material is below micro-meter scale.
Preferably, the condition of described anneal is: annealing temperature: 650-750 DEG C; Annealing time: 1-20 hour.In described anneal, annealing temperature is higher, and required annealing time is shorter.
Preferably, described anneal is carried out under vacuum or atmosphere protection.
More preferably, the vacuum tightness in described vacuum protection reaches 10
-3more than Pa rank.
More preferably, described protective atmosphere is argon gas or nitrogen.The purity of described argon gas or nitrogen is not less than 99.9%.
Preferably, after described anneal the crystal particle scale of alloy wire more than micro-meter scale.
More preferably, after described anneal, the crystal particle scale of alloy wire is 5 ~ 20 μm.
Described anneal is used for the crystal particle scale of shape memory alloy wire material, eliminates too much dislocation and unrelieved stress that cold-drawn brings simultaneously.Crystal particle scale below the micro-meter scale being in initial cold-drawn state silk material is increased, reaches more than micro-meter scale, specifically see Fig. 4.Show that the crystal particle scale of alloy wire reaches claimed range according to the metallographic data in Fig. 4, namely crystal particle scale controls at 5 ~ 20 μm.
2) more described shape memory alloy wire material is carried out ageing treatment.
Preferably, described ageing treatment is low temperature aging process.
Preferably, the condition of described ageing treatment is: aging temp: 220-300 DEG C; Aging time: 5-48 hour.
Preferably, after described shape memory alloy wire material carries out ageing treatment, obtain nanometer precipitated phase.
More preferably, described nanometer precipitated phase distributes domain of the existence difference in niti-shaped memorial alloy silk material, separates out density comparatively large, separate out density less in intracrystalline position at grain boundary sites.
Described ageing treatment makes shape memory alloy wire material obtain nanometer precipitated phase, specifically sees Fig. 5.Fig. 5 is the microtexture after involutory spun gold material amplifies further, can see that the nanophase of the uneven distribution that timeliness obtains separates out tissue clearly.Described nanometer precipitated phase not only can strengthen shape memory alloy wire material, is also the key that shape memory alloy wire material obtains superelevation damping value simultaneously.Described nanometer precipitated phase combines with the crystal particle scale of shape memory alloy wire material after anneal, effectively can control the distribution of nanometer precipitated phase in shape memory alloy wire material, make the Entropy density deviation of shape memory alloy wire material from crystal boundary to intracrystalline, there is the Gradient Effect of local, thus in shape memory alloy wire material, obtain the heterogeneous structure that a kind of precipitation adds twin, this heterogeneous structure provides very high damping value, thus makes shape memory alloy wire material have superelevation damping capacity.
Second aspect present invention provides a kind of shape memory alloy wire material, obtained after above-mentioned treatment process.
Preferably, described shape memory alloy wire material is niti-shaped memorial alloy silk material.
Above-mentioned shape memory alloy wire material first obtains by this area ordinary method, namely adds each elementary composition by proportioning, melting, shaping rear obtained.
More preferably, described niti-shaped memorial alloy silk material, by mole% meter, comprises following component:
Nickel (Ni): 50.2-51.0%;
Titanium (Ti): 49.0-49.8%.
More preferably, the niti-shaped memorial alloy silk material of described niti-shaped memorial alloy silk material alleged by the routine of this area, wherein also comprises at least one in the elements such as copper (Cu), iron (Fe), palladium (Pd), silver (Ag).
Further preferably, any one or multiple mixing is also comprised in copper, iron, palladium, silver element in described niti-shaped memorial alloy silk material.
Preferably, the original state of described shape memory alloy wire material is cold-drawn state.
More preferably, the silk material diameter of described shape memory alloy wire material is 50 μm ~ 2mm.
Preferably, the damping coefficient of described shape memory alloy wire material is not less than 0.25.
Preferably, the use temperature scope of described shape memory alloy wire material is-65 ~ 55 DEG C.
The present invention the 3rd face provides the application of a kind of shape memory alloy wire material in damping device.
As mentioned above, the treatment process of a kind of shape memory alloy wire material provided by the invention, by optimized proportion Addition ofelements component, and controlled grain-size and the nanometer precipitated phase tissue of shape memory alloy wire material by annealing and ageing treatment, thus obtain the niti-shaped memorial alloy silk material with superelevation damping function.The ratio of damping of the niti-shaped memorial alloy silk material prepared in the present invention can reach more than 0.4, a magnitude is improved than the ratio of damping of conventional titanium-nickel wire material, various device can be designed to as main damping source, huge at field application potentials such as military project, space flight and aviation, automobile, buildings.
Accompanying drawing explanation
Fig. 1 is shown as in-fighting and the mechanical property parameters distribution plan of all kinds of alloy.
Fig. 2 is shown as the hydrogen-twin relaxation internal friction peak schematic diagram of niti-shaped memorial alloy.
Fig. 3 is shown as the hydrogen-twin relaxation internal friction peak schematic diagram of titanium palladium base marmem.
Fig. 4 is shown as the structure schematic diagram after the annealing of niti-shaped memorial alloy silk material.
Fig. 5 is shown as the structure schematic diagram after the annealing of niti-shaped memorial alloy silk material.
Fig. 6 is shown as NiTi (Ni
50.8ti
49.2) shape memory alloy wire material in-fighting spectrum schematic diagram.
Embodiment
Set forth the present invention further below in conjunction with specific embodiment, should be understood that these embodiments are only not used in for illustration of the present invention and limit the scope of the invention.
Below by way of specific specific examples, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification sheets also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Notice, in the following example, the concrete processing unit that indicates or device all adopt conventional equipment in this area or device; All force value and scope all refer to absolute pressure.
In addition should be understood that the one or more method stepss mentioned in the present invention do not repel and can also to there is additive method step or can also insert additive method step before and after described combination step between these steps clearly mentioned, except as otherwise noted.
Embodiment 1
A kind of niti-shaped memorial alloy silk material, by mole% meter, comprises following component: nickel: 50.8%; Titanium: 49.2%.Described niti-shaped memorial alloy silk material as a kind of Conventional alloys silk material, wherein may also to contain in copper, iron, palladium, silver element any one or multiple.Described niti-shaped memorial alloy silk material adds each elementary composition by said ratio, melting, shaping rear obtained.The original state of described niti-shaped memorial alloy silk material is cold-drawn state, and its crystal particle scale is below micro-meter scale.The silk material diameter of described niti-shaped memorial alloy silk material is 150 μm.
Then, the niti-shaped memorial alloy silk material being in initial cold-drawn state is carried out anneal under vacuum protection, and annealing temperature is 700 DEG C, and annealing time is 5 hours.After anneal, the crystal particle scale of alloy wire is more than micro-meter scale, is specially 6.1 ~ 10.7 μm (namely the crystal particle scale of more than 90% is between 6-10 μm).Again niti-shaped memorial alloy silk material is carried out low temperature aging process, aging temp is 250 DEG C, and aging time is 24 hours.Thus obtain the niti-shaped memorial alloy silk material sample 1# with superelevation damping capacity.Niti-shaped memorial alloy silk material sample 1# is carried out correlated performance test, and the in-fighting spectrum of concrete outcome is shown in Fig. 6.As shown in Figure 6, the damping value (Internal friction and TanDelta) of niti-shaped memorial alloy silk material sample 1# reaches 0.35, and temperature range is-55 ~ 40 DEG C.
Embodiment 2
A kind of niti-shaped memorial alloy silk material, by mole% meter, comprises following component: nickel: 50.9%; Titanium: 49.1%.Described niti-shaped memorial alloy silk material as a kind of Conventional alloys silk material, wherein may also to contain in copper, iron, palladium, silver element any one or multiple.Described niti-shaped memorial alloy silk material adds each elementary composition by said ratio, melting, shaping rear obtained.The original state of described niti-shaped memorial alloy silk material is cold-drawn state, and its crystal particle scale is below micro-meter scale.The silk material diameter of described niti-shaped memorial alloy silk material is 100 μm.
Then, the niti-shaped memorial alloy silk material being in initial cold-drawn state is carried out anneal under vacuum protection, and annealing temperature is 650 DEG C, and annealing time is 15 hours.After anneal, the crystal particle scale of alloy wire is more than micro-meter scale, is specially 5.7 ~ 9.8 μm.Again niti-shaped memorial alloy silk material is carried out low temperature aging process, aging temp is 300 DEG C, and aging time is 8 hours.Thus obtain the niti-shaped memorial alloy silk material sample 2# with superelevation damping capacity.
Embodiment 3
A kind of niti-shaped memorial alloy silk material, by mole% meter, comprises following component: nickel: 50.5%; Titanium: 49.5%.Described niti-shaped memorial alloy silk material as a kind of Conventional alloys silk material, wherein may also to contain in copper, iron, palladium, silver element any one or multiple.Described niti-shaped memorial alloy silk material adds each elementary composition by said ratio, melting, shaping rear obtained.The original state of described niti-shaped memorial alloy silk material is cold-drawn state, and its crystal particle scale is below micro-meter scale.The silk material diameter of described niti-shaped memorial alloy silk material is 180 μm.
Then, the niti-shaped memorial alloy silk material being in initial cold-drawn state is carried out anneal under vacuum protection, and annealing temperature is 750 DEG C, and annealing time is 2 hours.After anneal, the crystal particle scale of alloy wire is more than micro-meter scale, is specially 12.0 ~ 19.3 μm.Again niti-shaped memorial alloy silk material is carried out low temperature aging process, aging temp is 220 DEG C, and aging time is 48 hours.Thus obtain the niti-shaped memorial alloy silk material sample 3# with superelevation damping capacity.
Embodiment 4
A kind of niti-shaped memorial alloy silk material, by mole% meter, comprises following component: nickel: 50.3%; Titanium: 49.7%.Described niti-shaped memorial alloy silk material as a kind of Conventional alloys silk material, wherein may also to contain in copper, iron, palladium, silver element any one or multiple.Described niti-shaped memorial alloy silk material adds each elementary composition by said ratio, melting, shaping rear obtained.The original state of described niti-shaped memorial alloy silk material is cold-drawn state, and its crystal particle scale is below micro-meter scale.The silk material diameter of described niti-shaped memorial alloy silk material is 75 μm.
Then, the niti-shaped memorial alloy silk material being in initial cold-drawn state is carried out anneal under vacuum protection, and annealing temperature is 700 DEG C, and annealing time is 6.5 hours.After anneal, the crystal particle scale of alloy wire is more than micro-meter scale, is specially 9.8 ~ 14.2 μm.Again niti-shaped memorial alloy silk material is carried out low temperature aging process, aging temp is 280 DEG C, and aging time is 16 hours.Thus obtain the niti-shaped memorial alloy silk material sample 4# with superelevation damping capacity.
Embodiment 5
A kind of niti-shaped memorial alloy silk material, by mole% meter, comprises following component: nickel: 51.0%; Titanium: 49.0%.Described niti-shaped memorial alloy silk material as a kind of Conventional alloys silk material, wherein may also to contain in copper, iron, palladium, silver element any one or multiple.Described niti-shaped memorial alloy silk material adds each elementary composition by said ratio, melting, shaping rear obtained.The original state of described niti-shaped memorial alloy silk material is cold-drawn state, and its crystal particle scale is below micro-meter scale.The silk material diameter of described niti-shaped memorial alloy silk material is 1.12mm.
Then, the niti-shaped memorial alloy silk material being in initial cold-drawn state is carried out anneal under vacuum or atmosphere protection, and annealing temperature is 680 DEG C, and annealing time is 10 hours.After anneal, the crystal particle scale of alloy wire is more than micro-meter scale, is specially 5.3 ~ 8.5 μm.Again niti-shaped memorial alloy silk material is carried out low temperature aging process, aging temp is 280 DEG C, and aging time is 40 hours.Thus obtain the niti-shaped memorial alloy silk material sample 5# with superelevation damping capacity.
Embodiment 6
By the niti-shaped memorial alloy silk material sample 1-5# obtained in embodiment 1-5, carry out correlated performance test, concrete outcome is in table 1.As shown in Table 1, the damping coefficient (in-fighting characteristic value) of niti-shaped memorial alloy silk material sample 1-5# is all not less than 0.25, and temperature range is large, and temperature span is wide, improves a magnitude than the damping coefficient of conventional titanium-nickel wire material.Therefore adopt the treatment process in the present invention, the niti-shaped memorial alloy silk material with superelevation damping capacity can be obtained.
Table 1 in-fighting characteristic value and high Internal friction platform cover temperature
| Project | In-fighting characteristic value (tan δ) | Temperature range (DEG C) | Temperature span (DEG C) |
| Sample 1# | 0.35 | -55～40 | 95 |
| Sample 2# | 0.32 | -60～35 | 95 |
| Sample 3# | 0.29 | -20～50 | 70 |
| Sample 4# | 0.37 | -25～55 | 80 |
| Sample 5# | 0.28 | -65～25 | 90 |
| Conventional titanium-nickel wire material | 0.08～0.10 | Lower than-50 | About 50 |
So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a treatment process for shape memory alloy wire material, comprises the following steps:
1), after making shape memory alloy wire material be in initial cold-drawn state, anneal is carried out;
2) more described shape memory alloy wire material is carried out ageing treatment.
2. the treatment process of shape memory alloy wire material according to claim 1, is characterized in that, in step 1) in, the condition of described anneal is: annealing temperature: 650-750 DEG C; Annealing time: 1-20 hour.
3. the treatment process of shape memory alloy wire material according to claim 1, is characterized in that, in step 1) in, described anneal is carried out under vacuum or atmosphere protection.
4. the treatment process of shape memory alloy wire material according to claim 1, is characterized in that, in step 1) in, after described anneal, the crystal particle scale of alloy wire is 5 ~ 20 μm.
5. the treatment process of shape memory alloy wire material according to claim 1, is characterized in that, in step 2) in, the condition of described ageing treatment is: aging temp: 220-300 DEG C; Aging time: 5-48 hour.
6. a shape memory alloy wire material, the treatment process according to the arbitrary described shape memory alloy wire material of claim 1-5 obtains.
7. shape memory alloy wire material according to claim 6, is characterized in that, described shape memory alloy wire material is niti-shaped memorial alloy silk material.
8. shape memory alloy wire material according to claim 6, is characterized in that, the damping coefficient of described shape memory alloy wire material is not less than 0.25.
9. shape memory alloy wire material according to claim 6, is characterized in that, the use temperature scope of described shape memory alloy wire material is-65 ~ 55 DEG C.
10. according to the arbitrary described application of shape memory alloy wire material in damping device of claim 6-9.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803361A (en) * | 2016-03-31 | 2016-07-27 | 吴德炳 | Method for making titanium/titanium-nickel alloy wire and window screen |
| CN107475652A (en) * | 2017-08-22 | 2017-12-15 | 哈尔滨工程大学 | In a kind of regulation and control TiNi base memorial alloys there is the method in section in R phases |
| CN110976536A (en) * | 2019-12-30 | 2020-04-10 | 上海埃蒙迪材料科技股份有限公司 | Method for processing nickel-titanium shape memory alloy wire |
| CN111850437A (en) * | 2020-07-29 | 2020-10-30 | 无锡东创智能材料科技有限公司 | Nickel-titanium shape memory alloy wire and preparation method and application thereof |
| CN114109752A (en) * | 2021-11-08 | 2022-03-01 | 上海交通大学 | Shape memory alloy driving element |
| CN118060360A (en) * | 2024-04-19 | 2024-05-24 | 有研医疗器械（北京）有限公司 | Production process of high-strength nickel-titanium shape memory alloy ribbon |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803361A (en) * | 2016-03-31 | 2016-07-27 | 吴德炳 | Method for making titanium/titanium-nickel alloy wire and window screen |
| CN105803361B (en) * | 2016-03-31 | 2017-11-07 | 吴德炳 | Make titanium, the method for Ti-Ni alloy silk and window screening |
| CN107475652A (en) * | 2017-08-22 | 2017-12-15 | 哈尔滨工程大学 | In a kind of regulation and control TiNi base memorial alloys there is the method in section in R phases |
| CN107475652B (en) * | 2017-08-22 | 2019-03-05 | 哈尔滨工程大学 | A method of there are sections for R phase in regulation TiNi base memorial alloy |
| CN110976536A (en) * | 2019-12-30 | 2020-04-10 | 上海埃蒙迪材料科技股份有限公司 | Method for processing nickel-titanium shape memory alloy wire |
| CN111850437A (en) * | 2020-07-29 | 2020-10-30 | 无锡东创智能材料科技有限公司 | Nickel-titanium shape memory alloy wire and preparation method and application thereof |
| CN114109752A (en) * | 2021-11-08 | 2022-03-01 | 上海交通大学 | Shape memory alloy driving element |
| CN114109752B (en) * | 2021-11-08 | 2023-07-28 | 上海交通大学 | Shape memory alloy driving element |
| CN118060360A (en) * | 2024-04-19 | 2024-05-24 | 有研医疗器械（北京）有限公司 | Production process of high-strength nickel-titanium shape memory alloy ribbon |
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