公开(公告)号：US20110114230A1

公开(公告)日：2011-05-19

申请号：US12946291

申请日：2010-11-15

Applicant: Tofail Ansar Md. Syed ,  James M. Carlson ,  Abbasi A. Gandhi ,  James Butler ,  Peter Tiernan ,  Lisa O'Donoghue

Inventor： Tofail Ansar Md. Syed ,  James M. Carlson ,  Abbasi A. Gandhi ,  James Butler ,  Peter Tiernan ,  Lisa O'Donoghue

IPC: C22C30/00 ,  C22F1/18

CPC classification number: C22F1/10 ,  C22C14/00 ,  C22C19/03 ,  C22F1/183

Abstract: A nickel-titanium-rare earth (Ni—Ti-RE) alloy comprises nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, boron at a concentration of up to about 0.1 at. %, with the balance of the alloy being titanium. In addition to enhanced radiopacity compared to binary Ni—Ti alloys and improved workability, the Ni—Ti-RE alloy preferably exhibits superelastic behavior. A method of processing a Ni—Ti-RE alloy includes providing a nickel-titanium-rare earth alloy comprising nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, the balance being titanium; heating the alloy in a homogenization temperature range below a critical temperature; and forming spheroids of a rare earth-rich second phase in the alloy while in the homogenization temperature range.

Abstract translation: 镍 - 钛 - 稀土（Ni-Ti-RE）合金包含浓度为约35英寸的镍。 ％至约65英寸 ％，浓度为约1.5at。的稀土元素。 ％至约15英寸 ％，硼浓度高达约0.1at。 ％，合金的余量为钛。 除了与二元Ni-Ti合金相比增强的不透射线性和改进的可加工性之外，Ni-Ti-RE合金优选表现出超弹性行为。 一种加工Ni-Ti-RE合金的方法包括提供镍 - 稀土合金，其包含浓度为约35at％的镍。 ％至约65英寸 ％，浓度为约1.5at。的稀土元素。 ％至约15英寸 ％，余量为钛; 在低于临界温度的均质化温度范围内加热合金; 并且在均质化温度范围内在合金中形成稀土富二烯的球体。

公开(公告)号：US08440031B2

公开(公告)日：2013-05-14

申请号：US12946291

申请日：2010-11-15

Applicant: Tofail Ansar Md. Syed ,  James M. Carlson ,  Abbasi A. Gandhi ,  Peter Tiernan ,  Lisa O'Donoghue ,  James Butler

Inventor： Tofail Ansar Md. Syed ,  James M. Carlson ,  Abbasi A. Gandhi ,  Peter Tiernan ,  Lisa O'Donoghue ,  James Butler

IPC: C22F1/18 ,  C22C30/00

CPC classification number: C22F1/10 ,  C22C14/00 ,  C22C19/03 ,  C22F1/183

Abstract: A nickel-titanium-rare earth (Ni—Ti-RE) alloy comprises nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, boron at a concentration of up to about 0.1 at. %, with the balance of the alloy being titanium. In addition to enhanced radiopacity compared to binary Ni—Ti alloys and improved workability, the Ni—Ti-RE alloy preferably exhibits superelastic behavior. A method of processing a Ni—Ti-RE alloy includes providing a nickel-titanium-rare earth alloy comprising nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, the balance being titanium; heating the alloy in a homogenization temperature range below a critical temperature; and forming spheroids of a rare earth-rich second phase in the alloy while in the homogenization temperature range.

Abstract translation: 镍 - 钛 - 稀土（Ni-Ti-RE）合金包含浓度为约35英寸的镍。 ％至约65英寸 ％，浓度为约1.5at。的稀土元素。 ％至约15英寸 ％，硼浓度高达约0.1at。 ％，合金的余量为钛。 除了与二元Ni-Ti合金相比增强的不透射线性和改进的可加工性之外，Ni-Ti-RE合金优选表现出超弹性行为。 一种加工Ni-Ti-RE合金的方法包括提供镍 - 稀土合金，其包含浓度为约35at％的镍。 ％至约65英寸 ％，浓度为约1.5at。的稀土元素。 ％至约15英寸 ％，余量为钛; 在低于临界温度的均质化温度范围内加热合金; 并且在均质化温度范围内在合金中形成稀土富二烯的球体。