CN104342568A - Preparation method of elastic alloy - Google Patents

Preparation method of elastic alloy Download PDF

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CN104342568A
CN104342568A CN201410543367.8A CN201410543367A CN104342568A CN 104342568 A CN104342568 A CN 104342568A CN 201410543367 A CN201410543367 A CN 201410543367A CN 104342568 A CN104342568 A CN 104342568A
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alloy
melting
cooling
nickel
cobalt
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CN201410543367.8A
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杨雯雯
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杨雯雯
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Abstract

The invention relates to a preparation method of an elastic alloy. The alloy comprises the following components in percentage by atom: 45-55 at% of nickel, 0-10 at% of iron, 25-35 at% of titanium, 5-15 at% of cobalt, 1-3 at% of copper, 3-5 at% of tungsten and 1-3 at% of nitrogen. The alloy material according to the technical scheme has narrow lag superelasticity and can keep the shape memory effect.

Description

一种弹性合金制备方法 An elastic alloys were prepared

技术领域 FIELD

[0001] 本发明属于功能性合金材料技术领域,特别是指一种弹性合金制备方法。 [0001] The present invention belongs to the technical field of functional alloy material, in particular to a method for preparing an elastic alloys.

背景技术 Background technique

[0002] 超弹性合金因其具有较高的可恢复弹性形变而广泛应用于航空、机械、精密仪器及医疗等领域。 [0002] super-elastic alloys because of its high recoverable elastic deformation and widely used in aviation, machinery, precision instruments and medical and other fields. 目前最常使用的超弹性合金为钛镍合金,钛镍合金中存在热弹性马氏体,其相变温度随合金成份不同在一定范围内变化,因为钛镍系合金不仅具有奇特的形状记忆效应,还具有较好的超弹性行为,但其超弹性行为属于宽滞后的超弹性行为,因此内耗高。 Superelastic alloys currently the most commonly used is a titanium-nickel alloy, the presence of thermoelastic martensitic nitinol, a different variation of its phase transition temperature within a certain range with the alloy composition, since only titanium-nickel based alloy having a unique shape memory effect , also has good superelastic behavior, but the behavior is superelastic hysteresis width superelastic behavior, high internal friction.

[0003] 我国专利公开号CN102337424中采用钴替代部分镍而形成一种镍钴铁镓合金材料,认为能够改变和控制合金材料的马氏体相变温度,可以获得较好的超弹性行为。 [0003] Patent Publication No. CN102337424 of cobalt employed to replace part of Ni to form a nickel-cobalt-iron-gallium alloys that can change and control of the alloy material martensitic transformation temperature can be obtained preferably superelastic behavior. 通过对该技术方案的合金进行分析,该合金的弹性性能确实优于普通的钛镍合金,马氏体也相应减少很多,但该合金也存有一定的缺陷,这就是虽然具有超弹性,但是对于原钛镍合金的形状记忆效应大为减少,甚至在有些组分中形状记忆效应为零。 The alloy was analyzed by the technical solution, the elastic properties of the alloy is indeed better than ordinary titanium-nickel alloy, a lot of martensite is correspondingly reduced, but there are also some shortcomings alloy, although this is superelastic, but the shape memory effect of the nitinol original greatly reduced, or even zero in some shape memory effect component. 因此需要开发一种即具有窄滞后超弹性能又能够保持形状记忆效应的合金材料。 I.e. it is necessary to develop a narrow hysteresis having superelastic and shape memory effect can be maintained alloy.

发明内容 SUMMARY

[0004] 本发明的目的是通过提供一种技术方案,该技术方案的合金材料不仅具有窄滞后弹性能又能够保持形状记忆效应的合金材料。 [0004] The object of the present invention by providing a technical solution, this solution alloy an alloy material having not only a narrow hysteresis elastic energy but also to maintain the shape memory effect.

[0005] 本发明是通过以下技术方案实现的: [0005] The present invention is achieved by the following technical solutions:

[0006] 一种弹性合金的制备方法,具体包括以下步骤: [0006] The method of preparing an elastic alloy, includes the following steps:

[0007] 1)、选取纯度>99.9%的镍,钴,铁,钛,铜,钨及氮,将上述材料按照原子百分含量配料,然后放入熔炼炉中并抽真空至2.0Xl(T4Pa,再充入氩气,反复熔炼后;所述反复熔炼是指至少两次熔炼,且除最后一次熔炼外,每次熔炼后以15-30°C /分钟降温200-300°C后再升温;用模具冷却吸铸得到合金毛坯 [0007] 1) select a purity of> 99.9% of nickel, cobalt, iron, titanium, copper, tungsten, and nitrogen, the atomic percentage of the above materials according to the ingredients, melting and then placed in an oven and evacuated to 2.0Xl (T4Pa , and then filled with argon, after repeated melting; the repeated melting means melting at least two times, and in addition the last melting, but after each melting at 15-30 ° C / min and then warmed cooling 200-300 ° C ; suction casting mold was cooled to obtain alloy blank

[0008] 2)、将1)中得到的合金毛坯密封,抽真空至5.0X10_5Pa,在1000°C下保温72小时,然后冷却至室温得到超弹性合金材料;所述的冷却以匀速冷却为主,冷却速率保持在2.5-5°C每15分钟,该冷却速率要保持到毛坯温度下降到450-500°C后,再自然冷却至常温。 [0008] 2), the sealing alloy blank obtained in 1), and evacuated to 5.0X10_5Pa, holding at 1000 ° C 72 hours, then cooled to room temperature to give a superelastic alloy material; uniform cooling in the cooling dominated , each of the cooling rate was maintained at 2.5-5 ° C 15 minutes, and the cooling rate to keep the temperature drops after the blank to 450-500 ° C, and then allowed to cool to room temperature.

[0009] 所述的熔炼炉采用的是非自耗真空电弧熔炼炉。 [0009] The non-consumable arc melting furnace according to a vacuum melting furnace employed.

[0010] 所述配料为,各组成按原子百分含量为镍45_55at %,铁0_10at %,钛25_35at %,钴5-15at%,铜l-3at%,钨3-5&七%及氮l_3at%。 [0010] The ingredients of each composition on an atomic percentage of nickel 45_55at%, iron 0_10at%, titanium 25_35at%, cobalt 5-15at%, copper l-3at%, tungsten and 3-5 & seven percent nitrogen l_3at% .

[0011] 本发明的有益效果是: [0011] Advantageous effects of the present invention are:

[0012] 1,本技术方案的合金材料不仅具有窄滞后超弹性能又能够保持形状记忆效应的合金材料。 [0012] 1, the alloy material of the present technical solution alloy material having not only a narrow hysteresis superelastic and shape memory effect can be maintained.

[0013] 2,本技术方案通过所述反复熔炼是指至少两次熔炼,且除最后一次熔炼外,每次熔炼后以15-30°C /分钟降温200-300°C后再升温,使得组织内晶体排列均匀,弹性系数相差小,提高弹性合金的弹性系数的均匀。 [0013] 2, by this aspect of the repeated melting means melting at least two times, and in addition the last melting, but after each melting at 15-30 ° C / min and then warmed cooling 200-300 ° C, such that crystal uniformly arranged within the tissue, the elastic coefficient of the phase difference is small, to improve the uniformity of the coefficient of elasticity of the elastic alloy.

具体实施方式 Detailed ways

[0014] 以下通过具体实施方式对本发明的技术方案进行详细说明。 [0014] The following detailed description of the technical solution of the present invention through specific embodiments.

[0015] 一种弹性合金的制备方法,具体包括以下步骤: [0015] The method of preparing an elastic alloy, includes the following steps:

[0016] 1)、选取纯度>99.9%的镍,钴,铁,钛,铜,钨及氮,将上述材料按照原子百分含量配料,所述配料为,各组成按原子百分含量为镍45-55at %,铁0-10at %,钛25_35at %,钴5-15at%,铜l-3at%,钨3-5&七%及氮l_3at%。 [0016] 1) select a purity of> 99.9% of nickel, cobalt, iron, titanium, copper, tungsten, and nitrogen, the above materials according to the ingredients atomic percentages, of the ingredients, the composition according to the respective atomic percentage of nickel 45-55at%, iron 0-10at%, titanium 25_35at%, cobalt 5-15at%, copper l-3at%, tungsten and 3-5 & seven percent nitrogen l_3at%.

[0017] 然后放入熔炼炉中并抽真空至2.0X10_4Pa,再充入氩气,反复熔炼后;所述反复熔炼是指至少两次熔炼,且除最后一次熔炼外,每次熔炼后以15-30°C /分钟降温200-300°C后再升温;用模具冷却吸铸得到合金毛坯 [0017] After then placed in a smelting furnace and evacuated to 2.0X10_4Pa, then backfilled with argon, repeated melting; the repeated melting means melting at least two times, and in addition the last melting, the melting after each 15 -30 ° C / min and then warmed cooling 200-300 ° C; cooling suction casting mold to obtain alloy blank

[0018] 2)、将1)中得到的合金毛坯密封,抽真空至5.0X10_5Pa,在1000°C下保温72小时,然后冷却至室温得到超弹性合金材料;所述的冷却以匀速冷却为主,冷却速率保持在 [0018] 2), the sealing alloy blank obtained in 1), and evacuated to 5.0X10_5Pa, holding at 1000 ° C 72 hours, then cooled to room temperature to give a superelastic alloy material; uniform cooling in the cooling dominated the cooling rate was maintained at

2.5-5°C每15分钟,该冷却速率要保持到毛坯温度下降到450-500°C后,再自然冷却至常温。 After 2.5-5 ° C per 15 minutes, the cooling rate to keep the temperature drops to the blank to 450-500 ° C, and then allowed to cool to room temperature.

[0019] 所述的熔炼炉采用的是非自耗真空电弧熔炼炉。 [0019] The non-consumable arc melting furnace according to a vacuum melting furnace employed.

[0020] 这样做的结果是能够保持合金内晶体结构的均匀,各组成在单位体积内的颗粒大致相同,减少能量的内耗。 [0020] The result of this is capable of maintaining a uniform crystal structure within the alloy, the composition of each particle per unit volume are substantially the same, to reduce friction energy.

[0021] 在以下各实施例中,区别之处仅在弹性合金的组成,而制备方法相同,因此,在以下的实施例中,仅说明各弹性合金的组成,制备方法不再重复说明。 [0021] In the following embodiment, only elastic alloy composition, and preparation of the same difference at each of the embodiments, therefore, in the following embodiment, only the composition of each elastic alloys described methods of preparation will not be repeated.

[0022] 实施例1 [0022] Example 1

[0023] 所述配料为,所述合金材料的各组成按原子百分含量为镍45at%,铁10at%,钛35at%,钴5at%,铜lat%,鹤3at%及氮lat%。 [0023] The ingredients of each composition of the alloy material by atomic percentage of nickel 45at%, 10at% Fe, 35at% titanium, cobalt 5at%, copper lat%, cranes 3at% nitrogen and lat%.

[0024] 实施例2 [0024] Example 2

[0025] 所述配料为,所述合金材料的各组成按原子百分含量为镍50at%,铁5at%,钛24at %,钴10at %,铜3at %,鹤5at % 及氮3at %。 [0025] The ingredients, for each component of the alloy material by atomic percentage of nickel 50at%, 5at% iron, titanium, 24at%, 10at% cobalt, copper 3at%, 5at%, and a nitrogen crane 3at%.

[0026] 实施例3 [0026] Example 3

[0027] 所述配料为,所述合金材料的各组成按原子百分含量为镍45at%,铁10at%,钛22at%,钴15at%,铜2at%,鹤4at% 及氮2at%。 [0027] The ingredients, for each component of the alloy material by atomic percentage of nickel 45at%, 10at% Fe, Ti 22at%, the cobalt 15at%, copper 2at%, and a nitrogen crane 4at% 2at%.

[0028] 本发明包括但不限于本实施例,凡是在本发明规则之下进行的等同替换或局部改进均应当视为本发明的保护范围。 [0028] the present invention include, but are not limited to the present embodiment, all equivalents performed under the rules of the invention shall be deemed to improved topical or scope of the present invention.

Claims (3)

1.一种弹性合金的制备方法,其特征在于:具体包括以下步骤: 1)、选取纯度> 99.9 %的镍,钴,铁,钛,铜,钨及氮,将上述材料按照原子百分含量配料,然后放入熔炼炉中并抽真空至2.0X l(T4Pa,再充入氩气,反复熔炼后;所述反复熔炼是指至少两次熔炼,且除最后一次熔炼外,每次熔炼后以15-30°C /分钟降温200-30(TC后再升温;用模具冷却吸铸得到合金毛坯2)、将I)中得到的合金毛坯密封,抽真空至5.0X10_5Pa,在1000°C下保温72小时,然后冷却至室温得到超弹性合金材料;所述的冷却以匀速冷却为主,冷却速率保持在2.5-5°C每15分钟,该冷却速率要保持到毛坯温度下降到450-500°C后,再自然冷却至常温。 A method for producing an elastomeric alloy, characterized in that: includes the following steps: 1) selecting a purity of> 99.9% of nickel, cobalt, iron, titanium, copper, tungsten, and nitrogen, the atomic percentage of the above-described materials in an after the repeated melting means melting at least two times, and in addition the last melting, the melting each; ingredients, and then placed in a smelting furnace evacuated to 2.0X l (T4Pa, then backfilled with argon, after repeated melting at 15-30 ° C / min cooling 200-30 (TC after warming; suction casting mold was cooled to obtain an alloy blank 2), the sealing alloy blank I) is obtained, evacuated to 5.0X10_5Pa, at 1000 ° C for 72 hours, then cooled to room temperature to give a superelastic alloy material; cooling at a uniform cooling of said main cooling rate was maintained at 2.5-5 ° C per 15 minutes, the cooling rate to keep the temperature drops to the blank 450-500 after ° C, then allowed to cool to room temperature.
2.根据权利要求1所述弹性合金的制备方法,其特征在于:所述的熔炼炉采用的是非自耗真空电弧熔炼炉。 2. The method of claim 1 prepared according to claim elastic alloy, characterized in that: the melting furnace using non-consumable vacuum arc melting furnace.
3.根据权利要求1所述弹性合金的制备方法,其特征在于:所述配料为,各组成按原子百分含量为镍45-55at %,铁O-1Oat %,钛25_35at %,钴5_15at %,铜l_3at %,钨3_5at %及氮l-3at%。 3. The method of preparing the 1-modulus alloy according to claim, characterized in that: the ingredient is, according to the constituent atomic percentage of nickel 45-55at%, iron O-1Oat%, titanium 25_35at%, cobalt 5_15at% copper l_3at%, tungsten and nitrogen 3_5at% l-3at%.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026487A (en) * 1973-03-12 1975-03-19
CN102864341A (en) * 2012-09-05 2013-01-09 徐琼 Super-elastic alloy material and preparation method thereof
CN104388802A (en) * 2014-10-14 2015-03-04 杨雯雯 Elastic alloy and its preparation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026487A (en) * 1973-03-12 1975-03-19
CN102864341A (en) * 2012-09-05 2013-01-09 徐琼 Super-elastic alloy material and preparation method thereof
CN104388802A (en) * 2014-10-14 2015-03-04 杨雯雯 Elastic alloy and its preparation method

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