Method for producing a galvanically deposited protection layer against hot gas corrosion

US4895625A · kind A · utility

Assignee

• MTU Motoren-und Turbinen-Union München GmbH · DE

Inventors

• Martin Thoma · Munich, DE
• Monika Bindl · Mitterscheyern, DE
• Paul Buenger · Eau Claire, US
• Josef Linska · Grafing, DE

Key dates

• Filing date: May 9, 1989
• Grant date: Jan 23, 1990
• Expiry date: May 9, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25D15/02
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Galvanically or electrolytically deposited protective coatings are produced on structural components such as gas turbine blades by suspending in the electrolytic solution a metal alloy powder of which the particles have a spherical configuration and a passivated surface. The concentration of the particles in the electrolyte is preferably smaller than 100 g/l, whereby a high insertion rate of up to 45% by volume has been achieved at relatively low costs and small technical efforts.