Coatings for metallic substrates

US9931815B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• David Paul Mourer · Danvers, US
• Leonardo Ajdelsztajn · Niskayuna, US
• Kenneth Rees Bain · Loveland, US
• Andrew Joseph Detor · Albany, US
• Andrew William Emge · West Chester, US
• James Anthony Ruud · Delmar, US
• Michael James Weimer · Loveland, US

Key dates

• Filing date: Mar 12, 2014
• Grant date: Apr 3, 2018
• Expiry date: Sep 28, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/175
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Coatings for substrates, such as superalloy substrates, are provided. The coating can include: 15 wt % to 45 wt % cobalt; 20 wt % to 40 wt % chromium; 2 wt % to 15 wt % aluminum; 0.1 wt % to 1 wt % yttrium; and nickel. The coatings may include nickel, cobalt, chromium and aluminum, and other optional additives to improve oxidation and corrosion resistance of the substrate without significant debit to its mechanical properties.