JP2017014623A - ニッケル−チタン−希土類元素合金および合金の処理方法 - Google Patents
ニッケル−チタン−希土類元素合金および合金の処理方法 Download PDFInfo
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- JP2017014623A JP2017014623A JP2016161248A JP2016161248A JP2017014623A JP 2017014623 A JP2017014623 A JP 2017014623A JP 2016161248 A JP2016161248 A JP 2016161248A JP 2016161248 A JP2016161248 A JP 2016161248A JP 2017014623 A JP2017014623 A JP 2017014623A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/006—Resulting in heat recoverable alloys with a memory effect
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
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- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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Abstract
Description
明細書および特許請求の範囲において使用される場合、以下の用語は以下の意味を有する。
式中
Rrel=(μC alloy/μC NiTi)
50.6at.%Niの、わずかにニッケルリッチな組成物が、2成分のニチノールについてμC NiTiを計算するために想定された。このアプローチを使用して、Ni−Ti−RE合金類の放射線不透過性と、均等原子量の2成分のNi−Ti合金の放射線不透過性とを比較することが可能である。相対放射線不透過性値Rrelが、原子百分率(at.%)、管電圧、およびフィルトレーションスキーム、たとえばフィルタなし、Alフィルタ、Cuフィルタ、または図20に示されるCDRHファントムについて種々のNi−Ti−REについて図9−12にグラフィカルに示される。Ni−Ti−Pt、Ni−Ti−Pd、およびNi−Ti−W合金についてのデータも、比較のためのために示される。
T=(I1/I0)=e−μx
Al、Cr、Mn、Fe、Co、Cu、Zn、Ga、Ge、Tc、Cd、In、Sn、Sb、Hg、Tl、Pb、Bi、Po、V、Ir、Pt、Au、Re、W、Pd、Rh、Ta、Ag、Ru、Hf、Os、Zr、Nb、およびMo。モノリシックな成分と比べて、そのような複合材構造は最適化された改良された放射線不透過性および最適な超弾性および/または、機械的性質を提供できる。
実施例1:選択されたNi−Ti−RE合金類の溶融およびキャラクタリゼーション
希土類元素(RE)リッチの金属間相は樹枝状晶間偏析する傾向があり、結論として樹枝状晶間セルラー・ネットワークを形成する傾向がある。合金の機械加工の間、このセルラー・ネットワークの存在は樹枝状晶間クラッキングと破壊につながることがある。
実施例3:Ni−Ti−RE合金類へのほう素添加
Claims (16)
- 以下を含むニッケル−チタン−希土類元素合金:
35at.%から65at.%の濃度のニッケル;
1.5at.%から15at.%の濃度の希土類元素;
0.001at.%から0.1at.%の濃度のホウ素;および
残部のチタン。 - 該希土類元素がLa、Pr、Nd、Pm、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、YbおよびLuから成る群から選択される、請求項1記載の合金。
- 該希土類元素がErである、請求項2記載の合金。
- 該希土類元素の濃度が1.5at.%から12at.%である、請求項1から3のいずれか1項記載の合金。
- 該希土類元素の濃度が3at.%から7.5at.%である、請求項1から4のいずれか1項記載の合金。
- 該希土類元素の濃度が4.5at.%から6at.%である、請求項1から5のいずれか1項記載の合金。
- ホウ素の濃度が0.005at.%から0.1at.%である、請求項1から6のいずれか1項記載の合金。
- ホウ素の濃度が0.01at.%から0.05at.%である、請求項1から7のいずれか1項記載の合金。
- ホウ素の濃度が35ppmである、請求項1記載の合金。
- ニッケルの濃度が45at.%から55at.%である、請求項1から9のいずれか1項記載の合金。
- 37℃から−15℃のAf温度を有し体温で超弾性である、請求項1から10のいずれか1項記載の合金。
- 20℃から−15℃のAf温度を有する、請求項1から11のいずれか1項記載の合金。
- 45at.%から55at.%の濃度のニッケル、
4.5at.%から6at.%の濃度のエルビウム、
0.005at.%から0.1at.%の濃度のホウ素、および
残部のチタンを含む請求項1記載の合金であって、2成分のニッケル−チタン合金のものより優れた放射線不透過性を有する合金。 - 請求項1から13のいずれか1項記載のニッケル−チタン−希土類元素合金を含む少なくとも1つの要素を含む医療器具。
- 該少なくとも1つの要素が、
少なくとも1本のワイヤ;および/または
カニューレ;および/または
少なくとも1つのステント、および
高いエックス線コントラストを提供する放射線不透過性のマーカーまたはマーカーバンドである、請求項14記載の医療器具。 - 該少なくとも1つの要素が、少なくとも1本のワイヤであって、コア層と、該コア層の周りに配置された1つ以上の外側の層を含む複合材料構造を有し、該層の1以上がニッケル−チタン合金から形成されるワイヤ;および/または、
ニッケル−チタン合金の1以上の同軸層を含む構造を有するカニューレ;および/または、
少なくとも1つのステント、および
高いエックス線コントラストを提供する放射線不透過性のマーカーまたはマーカーバンドである、請求項14または15記載の医療器具。
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GB0920123.7A GB2475340B (en) | 2009-11-17 | 2009-11-17 | Nickel-titanium alloy and method of processing the alloy |
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EP2501833B8 (en) | 2019-07-10 |
JP6746431B2 (ja) | 2020-08-26 |
US9074274B2 (en) | 2015-07-07 |
GB0920123D0 (en) | 2009-12-30 |
JP6050117B2 (ja) | 2016-12-21 |
WO2011062863A1 (en) | 2011-05-26 |
US20130284326A1 (en) | 2013-10-31 |
GB2475340B (en) | 2013-03-27 |
EP2501833A1 (en) | 2012-09-26 |
EP2501833B1 (en) | 2017-01-04 |
GB2475340A (en) | 2011-05-18 |
US8440031B2 (en) | 2013-05-14 |
JP2013510955A (ja) | 2013-03-28 |
US20110114230A1 (en) | 2011-05-19 |
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