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. 07, 1992
Filed:
Sep. 08, 1986
Applicant:
Inventor:
Alfonso L Baldi, Wynnewood, PA (US);
Assignee:
Alloy Surfaces Company, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ; B05D / ;
U.S. Cl.
CPC ...
427252 ; 427253 ; 427352 ;
Abstract
A nickel-base superalloy is subjected to a diffusion chromizing that supplies a chromized diffusion case, the outer surface of which contains excess alphachrome phase, and then contacting the diffusion case with an aqueous solution of alkali metal permanganate and alkali metal hydroxide until the desired amount of alphachrome phase is eliminated.