JPH04342A - Functional alloy for organism - Google Patents
Functional alloy for organismInfo
- Publication number
- JPH04342A JPH04342A JP2117639A JP11763990A JPH04342A JP H04342 A JPH04342 A JP H04342A JP 2117639 A JP2117639 A JP 2117639A JP 11763990 A JP11763990 A JP 11763990A JP H04342 A JPH04342 A JP H04342A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- temperature
- transformation
- shape memory
- heat treatment
- 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.)
- Granted
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 45
- 239000000956 alloy Substances 0.000 title claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 36
- 239000007943 implant Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000006386 memory function Effects 0.000 abstract 2
- 229910010977 Ti—Pd Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 25
- 229910000531 Co alloy Inorganic materials 0.000 description 8
- 230000003446 memory effect Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 229910001252 Pd alloy Inorganic materials 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 210000004394 hip joint Anatomy 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 102220563992 U1 small nuclear ribonucleoprotein A_N15V_mutation Human genes 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000005548 dental material Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005088 metallography Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012781 shape memory material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Materials For Medical Uses (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、生体に適した材料で２種の機能を持ち、その
中の１つは形状記憶効果を示すことを利用した生体用形
状記憶合金としての用途つまりインブラント、骨格及び
歯列矯正用ワイヤ、加工用クラスプ、歯科用補綴物（ク
ラウン、クラスプ）等であり、他の１つは機械的強度及
び耐食性に優れ生体適合性が良いことを利用した人口骨
としての用途、つまりインブラント、人口股関節、接骨
板等に適した材料である。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a material suitable for living bodies that has two types of functions, one of which is a shape memory material for living bodies that exhibits a shape memory effect. Its uses as an alloy include implants, skeletal and orthodontic wires, processing clasps, dental prostheses (crowns, clasps), etc. The other one is excellent mechanical strength and corrosion resistance and good biocompatibility. This makes it suitable for use as an artificial bone, such as implants, artificial hip joints, bone plates, etc.
［従来の技術］
生体用形状記憶合金としては、Ｔ１Ｎｉ合金が既に開発
されており、歯科材料の分野で超弾性を活かした歯別矯
正用ワイヤー及び医療用などに実用化されている。しか
し、Ｎｉは生体細胞に対し毒性を示すことが知られてお
り、人によってはアレルギー反応などを起すため、生体
に及ぼすＮｉの影響が問題となっている。又、人工骨な
どに応用されているＴｉ−６ＡＩ−４ＶなどＶを含む合
金も生体用合金として知られているが、■を含むためＶ
の生体有害性が問題となっている。等原子量比のＴｉＰ
ｄ合金は、Ｎｉ及びＶを含まない形状記憶合金であり、
５００℃付近でＢ２型母相からＢ１９型マルテンサイト
相に変態し、形状記憶効果を示すことが知られている。[Prior Art] T1Ni alloy has already been developed as a shape memory alloy for living bodies, and has been put into practical use in the field of dental materials, such as tooth-specific orthodontic wires that take advantage of its superelasticity, and for medical purposes. However, Ni is known to be toxic to living cells and may cause allergic reactions in some people, so the influence of Ni on living organisms has become a problem. In addition, alloys containing V such as Ti-6AI-4V, which are used in artificial bones, are also known as biological alloys, but because they contain
The biotoxicity of these substances is a problem. TiP with equal atomic weight ratio
d alloy is a shape memory alloy that does not contain Ni and V,
It is known that the B2 type matrix transforms to the B19 type martensitic phase at around 500°C and exhibits a shape memory effect.
ＴｉＰｄ合金は、原子炉などの高温領域での使用を目的
とした高温用形状記憶合金として研究されており、変態
温度と組成及び熱処理温度の関係は、Ｐｄ濃度４４■ｏ
ｆ％〜５５１０１％の範囲で調べられている。形状記憶
効果が現れる変態温度はＰｄ濃度の低下にともない低く
なるが、最も低い場合でも３００℃以上と高温である。TiPd alloy is being researched as a high-temperature shape memory alloy intended for use in high-temperature areas such as nuclear reactors, and the relationship between transformation temperature, composition, and heat treatment temperature is
It has been investigated in the range of f% to 55101%. The transformation temperature at which the shape memory effect appears decreases as the Pd concentration decreases, but even at its lowest it is as high as 300° C. or higher.
そのため、生体への応用を考慮し、ＴｉＰｄ合金のＰｄ
をＦｅあるいはＣｒで一部置換することで、変態温度を
低下させた低温用形状記憶合金に関する報告もある。Therefore, considering the application to living organisms, the Pd of TiPd alloy is
There are also reports on low-temperature shape memory alloys in which the transformation temperature is lowered by partially substituting Fe or Cr.
［発明が解決しようとする課題］
本発明は生体に有害とされているＮ１５Ｖを含有しない
ＴｉＰｄ−Ｃｏ合金とすることで、生体用機能合金とし
ての生体適合性を保証せんとするものである。又、Ｔｉ
Ｐｄ合金のＰｄの一部をＣｏで置換することにより、形
状記憶効果を示す変態温度を低下させ、同時に優れた機
械的性質と耐食性を有する生体用形状記憶合金及び生体
用合金である生体用機能合金を提供せんとするものであ
る。[Problems to be Solved by the Invention] The present invention aims to ensure biocompatibility as a functional alloy for living organisms by using a TiPd-Co alloy that does not contain N15V, which is considered to be harmful to living organisms. Also, Ti
By substituting a part of Pd in the Pd alloy with Co, the transformation temperature exhibiting the shape memory effect is lowered, and at the same time, the shape memory alloy for biological use and the alloy for biological use have excellent mechanical properties and corrosion resistance. The purpose is to provide alloys.
［課題を解決するための手段］
本発明は、
Ｔ ｉ ： ４５〜８０ ｍｏｌ％
Ｐ ｄ ＋ Ｃｏ ： ４０〜５５ ｍｏｌ％た
だし
Ｃｏ：≦３０ ｓｏ１％
よりなる合金を５００〜１０００’Ｃの温度に保持後急
冷してなる生体用機能合金である。[Means for Solving the Problems] The present invention provides an alloy consisting of Ti: 45-80 mol% P d + Co: 40-55 mol%, but Co: ≦30 so1%, at a temperature of 500-1000'C. This is a functional alloy for living organisms that is rapidly cooled after being held.
上記組成で更に望ましい範囲はＴ ｌ−（４２，２ｇｏ
ｉ％〜５５Ｉ０１％）Ｐｄ合金のＰｄを半分程度までＣ
ｏで置換した範囲がよい。A more desirable range for the above composition is T l-(42,2go
i%~55I01%) Pd in Pd alloy is reduced to about half
A range in which o is substituted is preferable.
生体用形状記憶合金とした場合、かがる組成の合金を５
００〜１０００℃で熱処理することにより、熱弾性型マ
ルテンサイト変態を持ち、かつ形状記憶効果の現れる変
態温度及び機械的性質が生体用に適するものとなる。When making a shape memory alloy for biological use, an alloy with a darkening composition is
By heat treating at 00 to 1000°C, the material has thermoelastic martensitic transformation, and the transformation temperature and mechanical properties at which the shape memory effect appears are suitable for biological use.
本発明は、ＴｉＰｄ合金の特性を、Ｃｏを含有すること
により一層生体用に適したものとする。すなわち、Ｐｄ
をＣｏで置換することは形状記憶効果の現れる変態温度
を低下させ、硬さや脆さの機械的性質を改善する。Ｃｏ
濃度０．５ｓｏ１％未満あるいはＣｏ濃度２０ ｓｏ１
％を超える置換はかかる改善効果が顕著ではない。The present invention makes the properties of TiPd alloy more suitable for biological use by containing Co. That is, Pd
Substituting Co with Co lowers the transformation temperature at which the shape memory effect appears and improves mechanical properties such as hardness and brittleness. Co
Concentration less than 0.5so1% or Co concentration 20so1
%, such improvement effect is not significant.
また、Ｔｉ濃度が６０■ｏ１％を超える場合及び４５ｇ
ｏ１％未満の場合は、熱処理を行っても所期の形状記憶
効果を示さず、上記範囲外の熱処理温度においても同様
に所期の効果が得られない。In addition, if the Ti concentration exceeds 60■o1% and 45g
If o is less than 1%, the desired shape memory effect will not be exhibited even if heat treatment is performed, and the desired effect will not be obtained even at heat treatment temperatures outside the above range.
［実施例コ
はじめに、９００℃で熱処理したＴｉＰｄ合金について
、Ｐｄ濃度４０■ｏ１％〜５０ ｓｏ１％の範囲におけ
る変態温度（Ａｓ点）とＰｄ濃度との関係を調べた。結
果は第１図に示すとおりであった。図中“−〇−は守護
らの結果を引用したものであり、 −△−は本発明者ら
の結果である。これら両者の結果より、’ｒｉＰｄＴｉ
Ｐｄ合金度４２．５ ｓｏ１％〜５０ｍｏｌ％の範囲で
Ｐｄ濃度の減少に伴い変態温度（Ａｓ点）が低下するこ
とがわかった。又、Ｐｄ濃度４２．５ ｍｏｌ％のＴｉ
Ｐｄ合金は、Ｘ線回折の結果より、ＴｉＰｄ＋ＴｉｚＰ
ｄの２相共存相であるにもかかわらず明確な変態維持し
、Ｐｄ濃度４２．５１０１〜５０■ｏｆ％の範囲におい
て変態温度が最も低かった。[Example 1] First, the relationship between the transformation temperature (As point) and the Pd concentration in the range of Pd concentration of 40 SO1% to 50 SO1% was investigated for a TiPd alloy heat-treated at 900°C. The results were as shown in Figure 1. In the figure, "-〇-" refers to the results of Mori et al., and "-△-" refers to the results of the present inventors.
It was found that the transformation temperature (As point) decreases as the Pd concentration decreases in the range of Pd alloy degree 42.5 so1% to 50 mol%. In addition, Ti with a Pd concentration of 42.5 mol%
According to the results of X-ray diffraction, the Pd alloy is TiPd+TizP.
Despite the two coexisting phases of d, clear transformation was maintained, and the transformation temperature was lowest in the range of Pd concentration of 42.5101 to 50%.
次に、このＰｄ濃度４２．５ ｍｏｌ％のＴｉＰｄ合金
（Ｔ ｉ −４２，５Ｐ ｄ ）のＰｄを表１に示すよ
うに一部Ｃｏで置換したＴｉＰｄ−Ｃｏ合金について試
験をした。Next, a TiPd-Co alloy in which Pd in this TiPd alloy (T i -42,5P d ) having a Pd concentration of 42.5 mol % was partially replaced with Co as shown in Table 1 was tested.
表１
表１に示す各Ｔｉｅｄ−Ｃｏ合金の作製方法は以下の手
順で行った。合金組成金属であるスポンジＴｉ（９９，
５％）、板状Ｐ ｄ （９９，９５％）、塊状Ｃｏ（９
９，５％）を予めアーク溶解炉で融解し脱ガスを行った
後、目的の組成となるように各金属を秤量し、再度アー
ク溶解炉を用いてアルゴン雰囲気中で融解して約１４ｇ
のボタン状合金を作製した。各ボタン状合金をカーボン
鋳型（ＧＳ ２０３新日鐵化学製）を用いて円柱及び板
状にキャストマチック（ＣＭ ２０３、岩谷製）で鋳造
した後、各測定に応じた長さに切断して熱処理を行い試
料とした。円柱状試料の大きさは直径３■、長さ５０ｍ
５ （Ｄ Ｓ Ｃ及び金属組織用の試料）と、直径１．
２■、長さ３５１■（電気抵抗用の試料）の２種、そし
て板状試料（Ｘ線回折用の試料）の大きさは厚さ ０．
５ｍ鵬、幅５■層、長さ１５ｍ５とした。熱処理につい
ては、各温度に４時間保持し、氷水中で急冷した。Table 1 Each Tied-Co alloy shown in Table 1 was produced using the following procedure. Sponge Ti (99,
5%), plate-like P d (99,95%), massive Co (9
9.5%) in advance in an arc melting furnace to degas, weigh each metal to obtain the desired composition, and melt it again in an argon atmosphere using an arc melting furnace to obtain approximately 14g.
A button-shaped alloy was fabricated. Each button-shaped alloy was cast into cylinders and plates with Castmatic (CM 203, Iwatani) using a carbon mold (GS 203, manufactured by Nippon Steel Chemical), and then cut into lengths according to each measurement and heat treated. and used it as a sample. The size of the cylindrical sample is 3cm in diameter and 50m in length.
5 (sample for D S C and metallography) and 1.5 in diameter.
There are 2 types of specimens with a length of 2 cm, a length of 351 cm (sample for electrical resistance), and a plate-shaped sample (sample for X-ray diffraction) with a thickness of 0.
It was 5m long, 5cm wide, and 15m5 long. For heat treatment, each temperature was maintained for 4 hours and then rapidly cooled in ice water.
各合金Ｎｏ、１〜Ｎｏ、４の変態温度（Ａｓ点、Ａｆ点
、Ｍｇ点、Ｍｆ点）は、オイルバス中で試料の電気抵抗
を測定し、その温度依存性から求めた。この場合の加熱
冷却速度は５℃〜６℃／ｓｉｎとし、測定のため試料に
流す電流を１００ｍＡに設定した。ＴｉＰｄ合金Ｎｏ、
５については、示差熱走査熱量計（Ｄ Ｓ Ｃ）を用い
、加熱冷却速度を１０℃／ｓｉｎに設定することにより
変態温度（Ａｓ点）を求めた。又、熱処理後の各試料の
相状態を確認するため、室温でＸ線回折による相の同定
及び高温顕微鏡による変態前後の金属組織の観察も行っ
た。The transformation temperatures (As point, Af point, Mg point, Mf point) of each alloy No. 1 to No. 4 were determined from the temperature dependence of the electrical resistance of the sample in an oil bath. The heating and cooling rate in this case was 5° C. to 6° C./sin, and the current flowing through the sample for measurement was set to 100 mA. TiPd alloy No.
Regarding Sample No. 5, the transformation temperature (As point) was determined using a differential scanning calorimeter (D SC) by setting the heating and cooling rate to 10° C./sin. In addition, in order to confirm the phase state of each sample after heat treatment, the phases were identified by X-ray diffraction at room temperature, and the metal structure before and after transformation was observed using a high-temperature microscope.
第２図は合金Ｎｏ、１、第３図は合金Ｎｏ、２、第４図
は合金Ｎｏ、３、第５図は合金Ｎｏ、４におけるそれぞ
れの変態温度に及ぼす熱処理温度の影響を示すグラフで
、第６図は熱処理温度９００℃におけるＴｉｅｄ−Ｃｏ
合金の変態温度に及ぼすＣｏ濃度の影響を示すグラフで
ある。各図中の“−〇−はＡｓ点“−△−はＡｆ点、−
口−はＭｓ点、 −一 はＭｆ点である。Figure 2 is a graph showing the effect of heat treatment temperature on the transformation temperature of Alloy No. 1, Figure 3 is Alloy No. 2, Figure 4 is Alloy No. 3, and Figure 5 is Alloy No. 4. , Figure 6 shows Tied-Co at a heat treatment temperature of 900°C.
It is a graph showing the effect of Co concentration on the transformation temperature of an alloy. In each figure, "-〇-" is the As point, "-△-" is the Af point, -
- is the Ms point, and -1 is the Mf point.
第２図において各変態点の温度は熱処理温度９５０℃付
近で最も低い。又、変態前後の比抵抗の変化量は、熱処
理温度が低いほど大きくなる傾向を示し、８５０℃の時
の変化量は１０００℃の時の変化量の約２倍であった。In FIG. 2, the temperature of each transformation point is the lowest near the heat treatment temperature of 950°C. Further, the amount of change in resistivity before and after transformation tended to increase as the heat treatment temperature was lower, and the amount of change at 850°C was about twice the amount of change at 1000°C.
第３図においては各変態点の温度は熱処理温度９００℃
及び１０００℃付近で低くなる傾向を示し、９５０℃で
は第２図の場合と異なり最も高い。比抵抗の変化量は熱
処理温度によらずほぼ同じ値であった。In Figure 3, the temperature at each transformation point is the heat treatment temperature of 900℃.
It shows a tendency to decrease around 1000°C, and reaches its highest at 950°C, unlike the case in FIG. The amount of change in resistivity was approximately the same regardless of the heat treatment temperature.
第４図においても、各変態点の温度は第３図と同様に熱
処理温度９００℃付近で最も低い。比抵抗の変化量も第
３図と同様の傾向を示した。Also in FIG. 4, the temperature at each transformation point is the lowest at around the heat treatment temperature of 900° C., similar to FIG. 3. The amount of change in resistivity also showed the same tendency as shown in FIG.
第５図においては、各変態点の温度は熱処理温度９００
℃付近で最も低くなっているが、第３図、第４図でみら
れた熱処理温度９５０℃付近での各変態点のピークは減
少し、第２図に類似した下凸のグラフとなる。又、比抵
抗の変化量については第３．４図の場合と同様である。In FIG. 5, the temperature of each transformation point is the heat treatment temperature of 900
It is lowest at around 950°C, but the peaks of each transformation point around the heat treatment temperature of 950°C seen in FIGS. 3 and 4 decrease, resulting in a downwardly convex graph similar to that in FIG. Further, the amount of change in specific resistance is the same as in the case of Fig. 3.4.
第６図は上記の各変態温度とＣｏ濃度との関係を熱処理
温度９００℃の場合についてまとめたものであるが、各
変態点の温度は、Ｃｏ濃度の増加に依存し低下した。特
にＣｏ濃度１１■ｏ１％のＴｉＰｄ−Ｃｏ合金の場合の
各変態点の温度は５０℃付近にあり、生体用として適す
ることが判る。又、熱処理温度８５０℃、９５０℃、１
０００℃の場合においても同様の傾向を示した。FIG. 6 summarizes the relationships between the above-mentioned transformation temperatures and Co concentrations for the heat treatment temperature of 900° C., and the temperature at each transformation point decreased depending on the increase in Co concentration. In particular, the temperature of each transformation point in the case of a TiPd-Co alloy with a Co concentration of 11.01% is around 50 DEG C., which indicates that it is suitable for biological use. In addition, heat treatment temperatures of 850°C, 950°C, 1
A similar tendency was observed in the case of 000°C.
次に高温顕微鏡により変態前後の金属組織の観察試験を
したところ、表面を鏡面研磨したＣ０濃度５ｍｏｌ％の
Ｔｉｅｄ−Ｃｏ合金の組織は、変態温度を過ぎると表面
にしわのような歪みが現れ、再び温度を下げるとその歪
は室温付近で若干残留する程度になった。Ｃｏ濃度７ｍ
ｏｌ％以上のＴｉＰｄ−Ｃｏ合金では変態前後で大きな
変化はみられなかった。Next, we conducted an observation test on the metal structure before and after transformation using a high-temperature microscope, and found that in the structure of Tied-Co alloy with a mirror-polished surface and a CO concentration of 5 mol%, wrinkle-like distortions appeared on the surface after the transformation temperature. When the temperature was lowered again, the strain was reduced to a degree that remained slightly around room temperature. Co concentration 7m
No major change was observed before and after transformation in TiPd-Co alloys with ol% or more.
これらの合金の機械的性質を知るため熱処理温度９００
℃の場合の各合金の荷重５００ｇにおけるマイクロビッ
カース硬さを表２に示す。In order to know the mechanical properties of these alloys, the heat treatment temperature was 900℃.
Table 2 shows the micro Vickers hardness of each alloy under a load of 500 g at ℃.
表２ これよりＰｄの一部をＣｏ置換すると硬さは減少する。Table 2 From this, when part of Pd is replaced with Co, the hardness decreases.
特にＣｏ濃度５■ｏ１％のＴｉＰｄ−Ｃｏ合金の硬さが
最も低くなっており、Ｃｏ−Ｃｒ合金鋳造体よりも小さ
い値となっている。In particular, the TiPd--Co alloy with a Co concentration of 5.01% has the lowest hardness, which is smaller than that of the Co--Cr alloy cast body.
この組成の合金は鋳造体試料でも実際に塑性変形可能で
ある。Alloys with this composition can actually be plastically deformed even in cast samples.
［発明の効果］
本発明合金はニッケル、バナジウムを含有していないの
で生体用に適するものであり、Ｃｏの含有により変態温
度は低下する。そのＣｏ濃度と熱処理温度との組合せに
より変態温度を細かく設定することができる。又、加工
性に優れており、形状記憶効果を比較的低い変態温度で
示すことから、インブラント、人工股関節、接骨材、骨
格矯正用ワイヤー、加工用クラスプ、歯科用補綴物等生
体用機能合金として有用である。[Effects of the Invention] Since the alloy of the present invention does not contain nickel or vanadium, it is suitable for biological use, and the inclusion of Co lowers the transformation temperature. The transformation temperature can be precisely set by combining the Co concentration and the heat treatment temperature. In addition, since it has excellent workability and exhibits shape memory effects at a relatively low transformation temperature, it can be used as a functional alloy for living organisms such as implants, artificial hip joints, bone grafting materials, wires for skeletal correction, processing clasps, and dental prostheses. It is useful as
第１図はＴｉＰｄ合金の変態温度（Ａｓ点）とＰｄ濃度
との関係を示すグラフ、第２〜５図は各ＴｉＰｄ−Ｃｏ
合金の変態温度と熱処理温度との関係を示すグラフ、
第６図はＴｉＰｄ−Ｃｏ合金の変態温度とＣｏ濃度との
関係を示すグラフである。
第
図
熱処理濃度
［”Ｃ］
濃度
［ｍｏｌ ％］
熱処理温度
［’Ｃ］
第
図
熱処理温度
［’Ｃ］
第
図
熱処理温度
［’Ｃ］Figure 1 is a graph showing the relationship between the transformation temperature (As point) and Pd concentration of TiPd alloy, and Figures 2 to 5 are graphs showing the relationship between TiPd alloy transformation temperature (As point) and Pd concentration.
Graph showing the relationship between transformation temperature of alloy and heat treatment temperature. FIG. 6 is a graph showing the relationship between transformation temperature and Co concentration of TiPd-Co alloy. Diagram Heat treatment concentration [''C] Concentration [mol %] Heat treatment temperature ['C] Diagram Heat treatment temperature ['C] Diagram Heat treatment temperature ['C]
Claims (1)
してなることを特徴とする生体用機能合金。[Claims] A functional alloy for biological use characterized by being formed by holding an alloy consisting of Ti: 45 to 60 mol%, Pd+Co: 40 to 55 mol%, but Co: ≦30 mol%, and then rapidly cooling the alloy at a temperature of 500 to 1000°C. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2117639A JPH089747B2 (en) | 1990-04-03 | 1990-05-09 | Bio-functional alloy |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8787190A JPH04169020A (en) | 1990-04-03 | 1990-04-03 | Switching mechanism for rotationally moving switch |
| JP2-87571 | 1990-04-03 | ||
| JP2117639A JPH089747B2 (en) | 1990-04-03 | 1990-05-09 | Bio-functional alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04342A true JPH04342A (en) | 1992-01-06 |
| JPH089747B2 JPH089747B2 (en) | 1996-01-31 |
Family
ID=26429118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2117639A Expired - Lifetime JPH089747B2 (en) | 1990-04-03 | 1990-05-09 | Bio-functional alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089747B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388754A (en) * | 2014-12-15 | 2015-03-04 | 苏州宽温电子科技有限公司 | Shape memory alloy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343443A (en) * | 1976-09-30 | 1978-04-19 | Burroughs Corp | Line control processor for digital system |
| JPS5651546A (en) * | 1979-09-28 | 1981-05-09 | Haruyuki Kawahara | Living body restoring alloy composition and living body restoring sintered body using it |
| JPS61223151A (en) * | 1985-03-29 | 1986-10-03 | Tsunayotsu Miura | Dental alloy for casting and restoration |
-
1990
- 1990-05-09 JP JP2117639A patent/JPH089747B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343443A (en) * | 1976-09-30 | 1978-04-19 | Burroughs Corp | Line control processor for digital system |
| JPS5651546A (en) * | 1979-09-28 | 1981-05-09 | Haruyuki Kawahara | Living body restoring alloy composition and living body restoring sintered body using it |
| JPS61223151A (en) * | 1985-03-29 | 1986-10-03 | Tsunayotsu Miura | Dental alloy for casting and restoration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388754A (en) * | 2014-12-15 | 2015-03-04 | 苏州宽温电子科技有限公司 | Shape memory alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089747B2 (en) | 1996-01-31 |
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