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:
Jul. 19, 1988
Filed:
Dec. 22, 1987
Ralph J Hecht, North Palm Beach, FL (US);
Abdus S Khan, Palm Beach Gardens, FL (US);
Richard H Barkalow, Palm Beach Shores, FL (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A class of protected coatings for superalloys is described in which the coatings compositions are based on the compositions of the underlying substrate. By tailoring the coatings to the substrate composition, diffusional stability results and the other mechanical properties of the coating such as coefficient of thermal expansion and modulus, are similar to that of the substrate. The coating contains 7.5-11% Al, 9-16% Cr, 0.1-0.5% Hf, 2-8% Ta, 0.01-0.8% Y, balance Ni along with other elements all chosen to be similar in type and quantity to the substrate composition.