Layered coating system with a MCrAlX layer and a chromium rich layer and a method to produce it

US9222163B2 · kind B2 · utility

Assignees

• Siemens Aktiengesellschaft · DE
• PRAXAIR S.T. TECHNOLOGIES INC. · US

Inventors

• Paul Box · Lincoln, GB
• Hugh Evans · Ashleworth, GB
• Thomas Kircher · Biddeford, US
• Thomas F. Lewis · Raleigh, US
• Bruce G. McMordie · Uniontown, US
• John Nicholls · Great Horwood, GB
• Paul Padley · Tattershall, GB
• Nigel Simms · Milton Keynes, GB
• Jonathan Venezia · Pottstown, US
• Paul Mathew Walker · Lincoln, GB
• Adrian Weatherill · Grafton, GB
• Mick Whitehurst · Lincoln, GB

Key dates

• Filing date: May 26, 2009
• Grant date: Dec 29, 2015
• Expiry date: Nov 11, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12944
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A layer system and a method for producing a component having such a layer system are provided. The layer system includes a substrate a substrate, at least one MCrX layer on the substrate, and a chromium-rich layer on or in the at least one MCrX layer. X includes at least one element selected from the group consisting of yttrium (Y), silicon (Si), aluminum (Al) and boron (B). M includes at least one element selected from the group consisting of nickel (Ni) and cobalt (Co).