Component with protective arrangement to prevent aluminizing or chromizing during gas diffusion coating

US5523165A · kind A · utility

Assignee

• MTU Motoren-und Turbinen-Union · DE

Inventors

• Heinrich Walter · Friedberg, DE
• Horst Pillhofer · Weingarten, DE
• Michael J. Strasser · San Francisco, US
• Frank Brungs · Dachau, DE
• Ralph Kropp · Hersbruck, DE
• Martin Schaipp · Junkenhofen, DE

Key dates

• Filing date: Dec 23, 1994
• Grant date: Jun 4, 1996
• Expiry date: Dec 23, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

This invention relates to a component of an iron, cobalt or nickel-base alloy with a protective arrangement to prevent aluminizing or chromizing during gas diffusion coating, with a first layer as an interlayer and a second layer as a getter layer for reaction gases, where the first layer is a slip casting layer composed of oxide ceramic particles carried in a low-carbon vehicle free from halide, and the second layer is a metal layer or a metallic slip casting layer. The metal layer contains at least 50% by weight of the base-metal fraction of the component and exhibits all major alloy constituents of the component. The metal layer may be a sintered metal shape.