The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
Sep. 06, 2011
David Andrew Helmick, Fountain Inn, SC (US);
Dennis William Cavanaugh, Simpsonville, SC (US);
Ganjiang Feng, Greenville, SC (US);
David Vincent Bucci, Simpsonville, SC (US);
David Andrew Helmick, Fountain Inn, SC (US);
Dennis William Cavanaugh, Simpsonville, SC (US);
Ganjiang Feng, Greenville, SC (US);
David Vincent Bucci, Simpsonville, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
In one embodiment, a method for forming an article with a diffusion portion comprises: forming a slurry comprising chromium and silicon, applying the slurry to the article, and heating the article to a sufficient temperature and for a sufficient period of time to diffuse chromium and silicon into the article and form a diffusion portion comprising silicon and a microstructure comprising α-chromium. In one embodiment, a gas turbine component comprises: a superalloy and a diffusion portion having a depth of less than or equal to 60 μm measured from the superalloy surface into the gas turbine component. The diffusion portion has a diffusion surface having a microstructure comprising greater than or equal to 40% by volume α-chromium.