Nickel base alloy

US6383312B1 · kind B1 · utility

Assignee

• ALSTOM Holdings · FR

Inventors

• Maxim Konter · Untersiggenthal, CH
• Peter Holmes · Winkel, CH
• Christoph Tonnes · Wettingen, CH
• Hans-Peter Bossmann · Lauchringen, DE
• Christoph Sommer · Plankstadt, DE

Key dates

• Filing date: Jul 24, 2000
• Grant date: May 7, 2002
• Expiry date: Jul 24, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C30/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A nickel base alloy comprising: (measured in % by weight): 11-16% Co; 12.2-15.5% Cr; 6.5-7.2% Al; 3.2-5.0% Re; 1.0-2.5% Si; 1.5-4.5% Ta; 0.2-2.0% Nb; 0.2-1.2% Hf; 0.2-1.2% Y; 0-1.5% Mg; 0-1.5% Zr; 0-0.5% La and La series elements; 0-0.15% C; 0-0.1% B; and a remainder including Ni and impurities. The alloy is particularly suited for coatings for gas turbine components such as gas turbine blades and vanes.