Internal aluminide coating for vanes and blades and method of manufacture

US11821337B1 · kind B1 · utility

Assignee

• RTX CORPORATION · US

Inventors

• Rafael A. Perez Reisler
• Andy Turko · Southington, US
• Xuan Liu · Glastonbury, US
• Danielle E. Jencks · Rocky Hill, US
• Glenn A. Cotnoir · Thompson, US
• Russell F. Croft · Tolland, US

Key dates

• Filing date: Aug 5, 2022
• Grant date: Nov 21, 2023
• Expiry date: Aug 5, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/611
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A gas turbine engine component includes a substrate having first surface and a second surface disposed opposite the first surface, a plurality of holes extending through the substrate from the first surface to the second surface, the holes defined by a plurality of respective walls each extending from the first surface to the second surface, a metallic bond coat disposed on the first surface, and an aluminide coating disposed on the first surface, the second surface, and the walls. The metallic bond coat is disposed between the first surface and the aluminide coating and the walls are free of the metallic bond coat.