Method for applying a titanium aluminide alloy, titanium aluminide alloy and substrate comprising a titanium aluminide alloy

US11692273B2 · kind B2 · utility

Assignee

• LUFTHANSA TECHNIK AG · DE

Inventors

• Jan Oke Peters · Hamburg, DE
• Thomas Gartner · Hamburg, DE
• Matthias Mecklenburg · Hamburg, DE
• Marcus Willi Rackel · Schwinde, DE
• Emine Bakan · Beulich, DE
• Georg Mauer · Tönisvorst, DE

Key dates

• Filing date: Dec 6, 2018
• Grant date: Jul 4, 2023
• Expiry date: Jan 23, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C30/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method applies a titanium aluminide alloy on a substrate. The titanium aluminide alloy has a gamma phase proportion of at least 50% based on an overall composition of the titanium aluminide. The method includes: pretreating a surface of the substrate; heat treating titanium aluminide powder particles at a temperature range of 600° C. to 1000° C. to increase the proportion of the gamma phase; cold spraying the heat-treated powder particles onto the substrate or a part of the substrate to form a layer of titanium aluminide; and thermally post-treating the layer of titanium aluminide applied to the substrate.