JPS59166641A - Shape memory alloy member and preparation thereof - Google Patents
Shape memory alloy member and preparation thereofInfo
- Publication number
- JPS59166641A JPS59166641A JP58040988A JP4098883A JPS59166641A JP S59166641 A JPS59166641 A JP S59166641A JP 58040988 A JP58040988 A JP 58040988A JP 4098883 A JP4098883 A JP 4098883A JP S59166641 A JPS59166641 A JP S59166641A
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- temp
- alloy
- memory alloy
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 26
- 230000009466 transformation Effects 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 230000003446 memory effect Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000549 Am alloy Inorganic materials 0.000 description 1
- 101100309447 Caenorhabditis elegans sad-1 gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
ｌ豆Ｏ９Ｎｔ
この発明は、形状記憶合金部材、特に粉体を焼結してな
る形状記憶合金部材およびその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shape memory alloy member, particularly a shape memory alloy member formed by sintering powder, and a method for manufacturing the same.
人工」１１五】に」
近年、各種アクチュエータおよび感温素子などに形状記
憶合金部材が広く用いられている。「形状記憶合金部材
」どは、マルテンサイト相で変形されたものが、逆変態
温度で母相になるとき形状が回復するという形状記憶効
果を有する合金部材をいう。しかしながら、逆変態温度
は、組成および形状記憶効果を付与するための処理すな
わちβ相化処理で一義的に決まる温度であるため、成る
１個の温度でしか形状回復は行なうことができなかった
。それゆえに、かなりの温度幅をもって形状回復するこ
とが要望されている用途、あういは複数の温度で形状回
復が要求される用途に用いることができる形状記憶合金
部材は未だ存在しなかった。In recent years, shape memory alloy members have been widely used in various actuators, temperature-sensitive elements, and the like. "Shape memory alloy member" refers to an alloy member that has a shape memory effect in which the shape is restored when the material is deformed in the martensitic phase and becomes the parent phase at the reverse transformation temperature. However, since the reverse transformation temperature is uniquely determined by the composition and the treatment for imparting a shape memory effect, that is, the β-phase treatment, shape recovery could only be performed at one temperature. Therefore, there has not yet been a shape memory alloy member that can be used in applications where shape recovery is required over a considerable temperature range, or where shape recovery is required at multiple temperatures.
発明の目的
それゆえに、この発明の目的は、上述の要望を見たし、
多段にあるいは連続的に成る温度幅をもって形状回復を
行ない得る形状記憶合金部材およびその製造方法を提供
することにある。OBJECT OF THE INVENTION Therefore, the object of the invention is to meet the above-mentioned needs and to
It is an object of the present invention to provide a shape memory alloy member capable of recovering its shape over a multistage or continuous temperature range, and a method for manufacturing the same.
１１悲１え
この発明は、変態温度および逆変Ｂ温度の異なる２ｆｉ
以上の合金粉末を混合し焼結してなる、見掛けの変Ｍ温
度が多段または連続的に分布していることを特徴とする
形状記憶合金部材、ならびに変８温度および逆変態温度
の異なる２種以上の合金粉末を混合し、焼結した後、熱
間または冷間で加工し、次いでβ相化処理を行なう、形
状記憶合金部材の製造方法である。11 Sad 1 E This invention is based on 2fi with different transformation temperature and reverse transformation B temperature.
A shape memory alloy member made by mixing and sintering the above alloy powders and characterized in that the apparent transformation temperature is distributed in multiple stages or continuously, and two types with different transformation temperatures: transformation temperature and reverse transformation temperature. This is a method for manufacturing a shape memory alloy member, in which the above alloy powders are mixed, sintered, hot- or cold-processed, and then subjected to β-phase treatment.
各合金粉末は、異種の元素からなるものでもよく、ある
いは同一元素からなるものでもよい。同一元素からなる
場合には、組成比のみが異なることになる。これによっ
て全体の変態温度すなわち見掛けの変態温度を、多段ま
た（よ連続的に分布することが可能となる。Each alloy powder may be made of different elements, or may be made of the same element. When they are made of the same element, only the composition ratio is different. This makes it possible to distribute the overall transformation temperature, that is, the apparent transformation temperature, in multiple stages or more continuously.
好ましい実施例では、合金粉末の粒径は、２００μｌ以
下である。また、各合金粉末が、β相構造を有し得る銅
合金から構成される。In a preferred embodiment, the particle size of the alloy powder is less than or equal to 200 μl. Further, each alloy powder is composed of a copper alloy that can have a β-phase structure.
この発明の第２の発明すなわち形状記憶合金部材の製造
方法の発明においては、β相化処理の温度と時間を調節
することにより、見掛けの変態温度の分布を調整するこ
とができる。In the second invention of the present invention, that is, the invention of the method for manufacturing a shape memory alloy member, the distribution of the apparent transformation temperature can be adjusted by adjusting the temperature and time of the β-phase treatment.
この発明のその他の目的および特徴は、図面を参照して
行なう以下の実施例についての説明により一層明らかと
なろう。Other objects and features of the invention will become more apparent from the following description of embodiments with reference to the drawings.
次にこの発明の原理を第１図ないし第５図を参照して説
明する。第１図は、この発明の一例を略図的に示す断面
図である。第１図から咀らかなように、逆変態温度Ｔ、
の合金組成の粉末１と、逆変態温度Ｔ２の合金組成の粉
末２とが混合・焼結されて、この発明の形状記憶合金部
ｖＪ３が得られる。形状記憶合金部材３は、焼結前には
、第２図に示すように、温度Ｔ１の逆変態温度を有する
組成の合金粉末コの部分と、温度１−２の逆変態流度を
有する組成の合金粉末２とからなる。ところが、加ｘ１
シて焼結することにより、第３図から第５図に示ずよう
な逆変態温度の分布を達成することができる。すなわち
、焼結のための加熱処哩が低温あるいは短詩間である場
合には、第３図に示すように、２ｍ階にわたる逆変態温
度が存在することになり、加熱をより高温かつ長詩間に
した場合には、第１１図および第５図に示されるように
、連続的な見掛（ブの変態）０度を得ることができる。Next, the principle of this invention will be explained with reference to FIGS. 1 to 5. FIG. 1 is a sectional view schematically showing an example of the present invention. As is clear from Figure 1, the reverse transformation temperature T,
Powder 1 having an alloy composition of 1 and powder 2 having an alloy composition of reverse transformation temperature T2 are mixed and sintered to obtain the shape memory alloy part vJ3 of the present invention. As shown in FIG. 2, the shape memory alloy member 3 has, before sintering, a part of the alloy powder having a composition having a reverse transformation temperature of temperature T1, and a part of the alloy powder having a composition having a reverse transformation flow rate of temperature 1-2. It consists of alloy powder 2. However, addition x1
By sintering, it is possible to achieve the reverse transformation temperature distribution as shown in FIGS. 3 to 5. In other words, if the heating process for sintering is at a low temperature or a short period, as shown in Figure 3, there will be a reverse transformation temperature over 2 m levels, and if the heating is performed at a higher temperature and a long period In this case, as shown in FIGS. 11 and 5, a continuous apparent (transformation of B) of 0 degrees can be obtained.
したがって、焼結のための加熱時間および温度を調節す
ることにより、この発明の形状記憶合金部材３の見掛け
の逆変態温度を多段にあるいは連続的に分布させること
ができる。、Ｆ述したように、形状記憶合金部材全体の
見掛けの変態温度の分布は、焼結のための加熱条件のみ
ならず、β相化処理の温度と時間を調節することによっ
ても可能である。Therefore, by adjusting the heating time and temperature for sintering, the apparent reverse transformation temperature of the shape memory alloy member 3 of the present invention can be distributed in multiple stages or continuously. , F As mentioned above, the distribution of the apparent transformation temperature of the entire shape memory alloy member can be achieved not only by adjusting the heating conditions for sintering but also by adjusting the temperature and time of the β-phase treatment.
実施例の説明
及１」１
ＣＵ−，２８，８重量％およびＺｎ−６，３１ｉｆ１％
を含有するΔ庭合金号分末（粒径的５０μＩ）と、Ｃｌ
−２９，２重量％およびＺｎ−６，Ｏｉ量％を含有する
Ａｍ合金粉末（粒径的４５μｍ）とを、等しい重量弁だ
け均一に混合し、これを冷間プレスで幅１００ＩｌｌＩ
ｉ×長さ１００ｍｍｘ厚み１１に固めた。次に、非酸化
雰囲気中で焼結し、厚さ０．５ｍｍに圧延加工した。さ
らに、この部材を真っ直ぐな形状に固定し、７００℃の
温度で１５分間加熱保持した後、水中にて急冷して、β
相化処理を行なった。Description of Examples and 1 CU-,28,8% by weight and Zn-6,31if1%
and Cl
-29.2% by weight and Am alloy powder (particle size: 45 μm) containing Zn-6, Oi amount % is uniformly mixed with equal weight valves, and this is cold pressed into a width of 100IllI.
It was hardened to a size of i×length 100mm×thickness 11. Next, it was sintered in a non-oxidizing atmosphere and rolled to a thickness of 0.5 mm. Furthermore, this member was fixed in a straight shape, heated and held at a temperature of 700°C for 15 minutes, and then rapidly cooled in water to obtain β
A phase treatment was performed.
このようにして得た部材を、０℃の温度で、曲率半仔１
５１、湾曲角度的１２０°となるように曲げ後、徐々に
加熱したところ、５０℃で約６００の角度に回復し、９
０℃でほとんど完全に元の直線形状に回復した。したが
って、この実施例１の形状記憶合金部材では、２段階の
形状回復効果が観察された。The thus obtained member was heated at a temperature of 0°C with a curvature of 1
51. After bending to a curvature angle of 120°, when heated gradually, the angle recovered to about 600 at 50°C, and 9
At 0°C, it almost completely recovered to its original linear shape. Therefore, in the shape memory alloy member of Example 1, two stages of shape recovery effects were observed.
人ｊ」ＬＬ
ＣＩＪ−１４，２重量％およびＡｌ１−３．９重量％を
含有するＮｉ合金粉末（粒径的３０μ［１１）と、Ｃ１
ｊ−１３，９重量％およびＡｆＬ−４，２重層％を含有
するＮｉ合金粉末（粒径的２８μｍ）とを、前者と後者
との重量比が４対６となるように混合した後、直径１０
１０１ｌ１長さ１１００１Ｉ１となるように、静水圧下
で８００℃にて２時間焼結した。これを、８５０℃の温
度で熱間辻延し、幅約ｉ５Ｉｌ１ｍ、厚さＱ、７ｍｍの
真っ直ぐな条とした。なお、少なくとも最終の圧延後直
ちに急冷を行なった。Ni alloy powder (particle size 30μ [11) containing 2% by weight of CIJ-14 and 3.9% by weight of Al1, and C1
After mixing Ni alloy powder (particle size 28 μm) containing J-13.9% by weight and AfL-4.2% by weight so that the weight ratio of the former and the latter was 4:6, the diameter 10
It was sintered under hydrostatic pressure at 800°C for 2 hours so that the length was 101l1 and 11001l1. This was hot cross-rolled at a temperature of 850° C. to form a straight strip with a width of about i5Il1m and a thickness Q of 7mm. Note that rapid cooling was performed at least immediately after the final rolling.
このようにして得た真っ直ぐな条を、−７０℃のアルコ
ール−ドライアイス混合体中で、約１２０℃の角度をな
すように曲げた後、１００℃まで徐々に加熱したところ
、はぼ温度の上昇につれて形状が徐々に回復した。The straight strip thus obtained was bent at an angle of approximately 120°C in an alcohol-dry ice mixture at -70°C, and then gradually heated to 100°C. As it ascended, it gradually regained its shape.
発明の効果
以上のように、この発明によれば、変態温度および逆変
ｔａ度の異なる２種以上の合金粉末から構成されている
ため、形状記憶効果を多段にあるいはかなりの温度幅に
わたり連続的に発揮し得る形状記憶合金部材を得ること
ができる。また、この形状記憶効果を発揮する温度幅は
、焼結条件およびβ相化処運条件などを変化させること
により、かなりの範囲に設定し得ることが可能である。Effects of the Invention As described above, according to the present invention, since it is composed of two or more types of alloy powders having different transformation temperatures and degrees of inverse transformation, the shape memory effect can be achieved in multiple stages or continuously over a considerable temperature range. It is possible to obtain a shape memory alloy member that can exhibit the following properties. Moreover, the temperature range at which this shape memory effect is exhibited can be set within a considerable range by changing the sintering conditions, β-phase processing conditions, and the like.
したがって、各種アクブーユエータ、感温素子およびバ
イメタルなど楊々な用途に用いることができる。Therefore, it can be used for various applications such as various actuators, temperature sensing elements, and bimetals.
第１図ないし第５図は、この発明の原理を示すための各
図であり、第１図はこの発明の一例を示す概略断面図で
あり、第２図ないし第５図はこの発明の形状記憶合金部
材の見掛けの変態温度の分布を示す図である。
１．２・・・合金粉末、３・・・形状記憶合金部材。
くほか２名）
第１図
第２図 第３図
第４図 第５図1 to 5 are diagrams for showing the principle of this invention, FIG. 1 is a schematic sectional view showing an example of this invention, and FIGS. 2 to 5 are diagrams showing the shape of this invention. FIG. 3 is a diagram showing a distribution of apparent transformation temperatures of a memory alloy member. 1.2... Alloy powder, 3... Shape memory alloy member. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (6)
の２種以上の合金粉末を混合し、焼結してなり、見掛け
の変Ｓ渦度が多段または連続的に分布していることを特
徴とする、形状記憶合金部材。(1) It is made by mixing and sintering two or more types of alloy powders with different compositions at different temperatures and reverse transformation temperatures, and the apparent modified S vorticity is distributed in multiple stages or continuously. Features: Shape memory alloy components.
り、組成比のみが異なる、特許請求の範囲第１項記載の
形状記憶合金部材。(2) The shape memory alloy member according to claim 1, wherein each of the alloy powders is composed of the same element and differs only in composition ratio.
特許請求の範囲第１項または第２項記載の形状記憶合金
部材。(3) The particle size of the alloy powder is 200 μm or less,
A shape memory alloy member according to claim 1 or 2.
粉末である、特許請求の範囲第１項ないし第３項のいず
れかに記載の形状記憶合金部材。(4) The shape memory alloy member according to any one of claims 1 to 3, wherein each alloy powder is a copper alloy powder that can have a β-phase 41I structure.
種以上の合金粉末を混合し、焼結した後、熱間または冷
間で加工し、次いでβ相化処理を行なう、形状記憶合金
部材の製造方法。(5) 2 different temperatures of variable Ill temperature and reverse variable W7A temperature
A method for manufacturing a shape memory alloy member, which comprises mixing and sintering various types of alloy powders, then hot or cold processing, and then β-phase treatment.
より、変態温度の分布を特徴する特許請求の範囲第５項
記載の形状記憶合金部材の製造方法。(6) The method for manufacturing a shape memory alloy member according to claim 5, wherein the distribution of transformation temperature is characterized by adjusting the temperature and time of the β-phase treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58040988A JPS59166641A (en) | 1983-03-12 | 1983-03-12 | Shape memory alloy member and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58040988A JPS59166641A (en) | 1983-03-12 | 1983-03-12 | Shape memory alloy member and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59166641A true JPS59166641A (en) | 1984-09-20 |
Family
ID=12595802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58040988A Pending JPS59166641A (en) | 1983-03-12 | 1983-03-12 | Shape memory alloy member and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166641A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219443A (en) * | 1983-05-28 | 1984-12-10 | Daido Steel Co Ltd | Multi-changing type shape memory alloy and its production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105441A (en) * | 1980-01-10 | 1981-08-21 | Special Metals Corp | Production of shape memory effect alloy having desired transformation temperature |
| JPS57108228A (en) * | 1980-12-25 | 1982-07-06 | Hitachi Metals Ltd | Composite magnetic material having compound magnetization curve by powder metallurgy |
| JPS57158357A (en) * | 1981-03-25 | 1982-09-30 | Hitachi Metals Ltd | Composite hot working tool material with wear and heat resistance |
| JPS57164944A (en) * | 1981-04-02 | 1982-10-09 | Hitachi Metals Ltd | Alloy with high toughness and high electric resistance |
-
1983
- 1983-03-12 JP JP58040988A patent/JPS59166641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105441A (en) * | 1980-01-10 | 1981-08-21 | Special Metals Corp | Production of shape memory effect alloy having desired transformation temperature |
| JPS57108228A (en) * | 1980-12-25 | 1982-07-06 | Hitachi Metals Ltd | Composite magnetic material having compound magnetization curve by powder metallurgy |
| JPS57158357A (en) * | 1981-03-25 | 1982-09-30 | Hitachi Metals Ltd | Composite hot working tool material with wear and heat resistance |
| JPS57164944A (en) * | 1981-04-02 | 1982-10-09 | Hitachi Metals Ltd | Alloy with high toughness and high electric resistance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219443A (en) * | 1983-05-28 | 1984-12-10 | Daido Steel Co Ltd | Multi-changing type shape memory alloy and its production |
| JPH0471977B2 (en) * | 1983-05-28 | 1992-11-17 | Daido Steel Co Ltd |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4533411A (en) | Method of processing nickel-titanium-base shape-memory alloys and structure | |
| JPS58151445A (en) | Titanium-nickel alloy having reversible shape storage effect and its manufacture | |
| US3417461A (en) | Thin-film diffusion brazing of titanium members utilizing copper intermediates | |
| AU3424189A (en) | A method for producing a shape memory alloy member having specific physical and mechanical properties | |
| US6358380B1 (en) | Production of binary shape-memory alloy films by sputtering using a hot pressed target | |
| EP0161066A1 (en) | Nickel/titanium-base alloys | |
| JPS59166641A (en) | Shape memory alloy member and preparation thereof | |
| JPS6210291B2 (en) | ||
| US4166739A (en) | Quarternary β-brass type alloys capable of being rendered heat recoverable | |
| GB1593499A (en) | Copper aluminium zinc alloy | |
| JPS6247937B2 (en) | ||
| JPS61106740A (en) | Ti-ni alloy having reversible shape memory effect and its manufacture | |
| JP2004292886A (en) | Rare earth-added ferromagnetic shape memory alloy | |
| JPS6140741B2 (en) | ||
| JP2003277856A (en) | Shape memory alloy and method of producing the same | |
| JPS6214216B2 (en) | ||
| JPS6227518A (en) | Manufacture of low expansion alloy material | |
| JP2724815B2 (en) | Shape memory alloy coil spring and method of manufacturing the same | |
| JPH04350139A (en) | Nickel/titanium/copper shape memory alloy | |
| Zengin et al. | Oxidation behaviour and kinetic properties of shape memory CuAlxNi4 (x= 13.0 and 13.5) alloys | |
| JPH0317238A (en) | Cu-al-mn series shape memory alloy and its manufacture | |
| JPH01191757A (en) | Ni-ti shape memory alloy and production thereof | |
| JPS5836669B2 (en) | A method for creating alloys with reversible shape memory phenomenon | |
| JP2524780B2 (en) | Method for manufacturing copper alloy member having giant crystal surface | |
| JPH059686A (en) | Production of shape memory niti alloy |