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:
Oct. 10, 2000
Filed:
Aug. 14, 1997
Applicant:
Inventors:
Bruce M Warnes, Muskegon, MI (US);
William J Shriver, New Era, MI (US);
Ronald J Honick, Jr, Muskegon, MI (US);
Nick S DuShane, Muskegon, MI (US);
Assignee:
Howmet Research Corporation, Whitehall, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C23C / ;
U.S. Cl.
CPC ...
428610 ; 428615 ; 428639 ; 428652 ; 428668 ; 428670 ; 428680 ; 428941 ; 4162 / ; 4162 / ; 427253 ; 427456 ;
Abstract
High temperature oxidation resistance of an aluminide diffusion overcoated MCrAlY coating system is substantially improved by CVD over-aluminizing the MCrAlY type overlay coating under CVD conditions that result in reduced concentrations of such tramp impurities as S and P in the aluminized MCrAlY overlay coating region of the coating system. The CVD aluminizing conditions yield an outwardly grown aluminide over-coat on the underlying MCrAlY type coating.