Nickel-aluminium-zirconium alloys

US9816159B2 · kind B2 · utility

Assignee

• INDIAN INSTITUTE OF SCIENCE · IN

Inventors

• Chandrasekhar Tiwary · Bengaluru, IN
• Sanjay Kashyap · Bengaluru, IN
• Olu Emmanuel Femi · Bengaluru, IN
• Dipankar Banerjee · Bengaluru, IN
• Kamanio Chattopadhyay · Bengaluru, IN

Key dates

• Filing date: Jun 4, 2012
• Grant date: Nov 14, 2017
• Expiry date: Aug 7, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C1/047
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present subject matter describes Ni—Al—Zr alloys, which include Ni as the major component, with the additions of 9-20% Al and 4-14% Zr by atomic percentage. In one embodiment, the present subject matter describes a group of alloy compositions in a Nickel-Aluminum-Zirconium (Ni—Al—Zr) system corresponding to a concentration range of about 9-20% Al and about 4-14% Zr by atomic percentages, and the balance being Ni. In other embodiment, the present subject matter includes at least one eutectic constituent including at least two of the intermetallic compounds or phases Ni3Al, NiAl, Ni5Zr, Ni7Zr2 and derivatives that are realized within the aforementioned composition group.