CN103668021A - Online annealing treatment method for improving plasticity of nickel titanium shape memory alloy - Google Patents
Online annealing treatment method for improving plasticity of nickel titanium shape memory alloy Download PDFInfo
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- CN103668021A CN103668021A CN201310675100.XA CN201310675100A CN103668021A CN 103668021 A CN103668021 A CN 103668021A CN 201310675100 A CN201310675100 A CN 201310675100A CN 103668021 A CN103668021 A CN 103668021A
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Abstract
The invention discloses an online annealing treatment method for improving plasticity of a nickel titanium shape memory alloy. The method comprises the following steps: performing online annealing treatment on the nickel-enriched Ni-Ti shape memory alloy in the drawing process, and cooling. According to the online annealing treatment method for improving plasticity of the nickel titanium shape memory alloy, the nickel-enriched Ni-Ti shape memory alloy is subjected to the online annealing treatment in the drawing process, so that the nickel-enriched Ni-Ti shape memory alloy is high in plasticity, unlikely to deform and stable in performance. Moreover, the method is simple and feasible, the time is saved, and the processing efficiency is improved.
Description
Technical field
The invention belongs to Alloy Processing field, relate to a kind of online annealing method that improves niti-shaped memorial alloy plasticity.
Background technology
Rich nickel-Ti shape memory alloy is subject to the extensive attention of academia and engineering circles because having good shape memory effect and complicated transformation behavior.In the last few years, rich nickel-Ti binary alloy had also been obtained valuable achievement at the performance study aspect shape memory alloy plasticity.Relevant article and report are pointed out, in order to make rich nickel-Ti memorial alloy there is better shape memory effect and good plasticity, conventionally adopt following methods to process: medium annealing is processed and Full Annealing is processed, existing these two kinds of methods are after Ni-Ti shape memory alloy machines, to carry out anneal, have annealing length consuming time, efficiency is low, operation is various, heat the defects such as inhomogeneous.
Summary of the invention
The object of this invention is to provide a kind of online annealing method that improves niti-shaped memorial alloy plasticity, solved problems of the prior art.
The technical solution adopted in the present invention is that the online annealing method of raising niti-shaped memorial alloy plasticity carries out online anneal to rich nickel-Ti shape memory alloy in drawing process, then cooling.
Feature of the present invention is also,
Online annealing is online annealing 1.0～5.0min at 780～850 ℃.
Annealing is online annealing 1.0～3.0min at 780～810 ℃ online, and then the 1.0～5.0min that anneals online at 810 ℃～850 ℃.
Cooling employing water or oil carry out cooling.
Optimum scheme is, rich nickel-Ti shape memory alloy, in drawing process, is first heated to 2.3min again after online annealing 1.8min at 810 ℃ at 830 ℃, and last water carries out cooling.
The invention has the beneficial effects as follows, the present invention improves the online annealing method of niti-shaped memorial alloy plasticity, by online anneal is carried out in rich nickel-Ti shape memory alloy drawing limit in limit in drawing process, make rich nickel-Ti shape memory alloy there is good plasticity, not yielding, stable performance, and its method is simple, save time, improve working (machining) efficiency.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
The online annealing method that improves niti-shaped memorial alloy plasticity carries out online anneal to rich nickel-Ti shape memory alloy in drawing process, and then water or oil carry out cooling.
Annealing process is online: at 780～850 ℃, anneal online 1.0～5.0min or the 1.0～3.0min that first anneals online at 780～810 ℃, and then the 1.0～5.0min that anneals online at 810 ℃～850 ℃.
The present invention improves the online annealing method of niti-shaped memorial alloy plasticity, by online anneal is carried out in rich nickel-Ti shape memory alloy drawing limit in limit in drawing process, make rich nickel-Ti shape memory alloy there is good plasticity, not yielding, stable performance, and its method is simple, saves time, improve working (machining) efficiency.
Embodiment 1
By rich nickel-Ti shape memory alloy in drawing process, online annealing 3.0min at 780 ℃, water carries out cooling.
Embodiment 2
By rich nickel-Ti shape memory alloy in drawing process, online annealing 2.3min at 800 ℃, water carries out cooling.
Embodiment 3
By rich nickel-Ti shape memory alloy, in drawing process, at 810 ℃, online annealing 1.8min, carries out cooling with oil.
Embodiment 4
By rich nickel-Ti shape memory alloy in drawing process, online annealing 1.0min at 830 ℃, water carries out cooling.
Embodiment 5
By rich nickel-Ti shape memory alloy in drawing process, online annealing 0.7min at 850 ℃, water carries out cooling.
Embodiment 6
By rich nickel-Ti shape memory alloy in drawing process, online annealing 3.0min at 830 ℃ again after online annealing 1.8min at 810 ℃, last water carries out cooling.
Embodiment 7
By rich nickel-Ti shape memory alloy in drawing process, first online annealing 5min at 820 ℃ again after online annealing 1.0min at 810 ℃, last water carries out cooling.
Embodiment 8
By rich nickel-Ti shape memory alloy in drawing process, first online annealing 1.0min at 850 ℃ again after online annealing 3min at 780 ℃, last water carries out cooling.
Embodiment 9
By rich nickel-Ti shape memory alloy, in drawing process, the 4min that first anneals online at 820 ℃ again after online annealing 2min at 800 ℃, finally carries out cooling with oil.
Embodiment 10
By rich nickel-Ti shape memory alloy in drawing process, first online annealing 2min at 840 ℃ again after online annealing 1.5min at 810 ℃, last water carries out cooling.
Embodiment 1-10 is processed to the rich nickel-Ti shape memory alloy obtaining and at room temperature utilize electronic tensile test machine to do tension test, obtain its unit elongation as shown in table 1.
Table 1 embodiment 1～10 processes the unit elongation of the rich nickel-Ti shape memory alloy obtaining
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Unit elongation/% | 31.0 | 35.5 | 38.2 | 36.5 | 33.5 | 40.5 | 54.5 | 45.6 | 43.5 | 40.0 |
As can be seen from Table 1, the unit elongation of rich nickel-Ti shape memory alloy that the online annealing method of the present invention obtains is all greater than 30%, can reach 54.5%, and the alloy that visible this method obtains all has higher unit elongation, and plasticity is good.
Claims (5)
1. improve the online annealing method of niti-shaped memorial alloy plasticity, it is characterized in that, rich nickel-Ti shape memory alloy is carried out to online anneal in drawing process, then cooling.
2. the online annealing method of raising niti-shaped memorial alloy plasticity according to claim 1, is characterized in that, online annealing is online annealing 1.0～5.0min at 780～850 ℃.
3. the online annealing method of raising niti-shaped memorial alloy plasticity according to claim 1, it is characterized in that, annealing is at online annealing 1.0～3.0min at 780～810 ℃ online, and then the 1.0～5.0min that anneals online at 810 ℃～850 ℃.
4. according to the online annealing method of the arbitrary described raising niti-shaped memorial alloy plasticity of claim 1～3, it is characterized in that, described cooling employing water or oil carry out cooling.
5. according to the online annealing method of the arbitrary described raising niti-shaped memorial alloy plasticity of claim 1～3, it is characterized in that, optimum scheme is, to rich nickel-Ti shape memory alloy in drawing process, first at 810 ℃, after online annealing 1.8min, heat 2.3min again at 830 ℃, last water carries out cooling.
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| CN201310675100.XA CN103668021B (en) | 2013-12-11 | 2013-12-11 | Improve the online annealing method of niti-shaped memorial alloy plasticity |
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| CN201310675100.XA CN103668021B (en) | 2013-12-11 | 2013-12-11 | Improve the online annealing method of niti-shaped memorial alloy plasticity |
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| CN103668021B CN103668021B (en) | 2016-02-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269972A (en) * | 2016-08-16 | 2017-01-04 | 宝鸡核新金属有限公司 | The preparation for processing of big substance high-performance titanium or titanium alloy light parcel |
| 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 |
| CN111346942A (en) * | 2020-03-12 | 2020-06-30 | 西安华创新材料有限公司 | Method for processing nickel-titanium shape memory alloy high-strength wire |
Citations (2)
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| CN101649429A (en) * | 2009-06-30 | 2010-02-17 | 镇江忆诺唯记忆合金有限公司 | Method of producing NiTiV shape memory alloy wire |
| WO2011141553A2 (en) * | 2010-05-12 | 2011-11-17 | Minitubes Sa | High ductility superelastic material |
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Patent Citations (2)
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| CN101649429A (en) * | 2009-06-30 | 2010-02-17 | 镇江忆诺唯记忆合金有限公司 | Method of producing NiTiV shape memory alloy wire |
| WO2011141553A2 (en) * | 2010-05-12 | 2011-11-17 | Minitubes Sa | High ductility superelastic material |
Non-Patent Citations (2)
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| 杨杰 等: "《形状记忆合金及其应用》", 31 May 1993, article "《TiNi合金的加工》", pages: 176-177 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269972A (en) * | 2016-08-16 | 2017-01-04 | 宝鸡核新金属有限公司 | The preparation for processing of big substance high-performance titanium or titanium alloy light parcel |
| 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 |
| CN111346942A (en) * | 2020-03-12 | 2020-06-30 | 西安华创新材料有限公司 | Method for processing nickel-titanium shape memory alloy high-strength wire |
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Effective date of registration: 20210201 Address after: No.10, north section of Weihua Road, Jingwei new town, Xi'an Economic and Technological Development Zone, Shaanxi 710000 Patentee after: XI'AN SAITE SIMAI TITANIUM INDUSTRY Co.,Ltd. Address before: 710021 No. three, No. 46, Fengcheng economic and Technological Development Zone, Shaanxi, Xi'an Patentee before: XI'AN SIWEI METAL MATERIALS Co.,Ltd. |
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