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:
May. 07, 2013
Filed:
Jun. 28, 2011
Applicants:
Mohamad Nazmy, Fislisbach, CH;
Claus Gerdes, Rütihof, CH;
Andreas Künzler, Baden, CH;
Inventors:
Assignee:
ALSTOM Technology Ltd., Baden, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21D 11/00 (2006.01); C22C 19/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a process for producing a large single-crystal component or directionally solidified component made of a nickel-based superalloy, the component is first cast into shape in a known manner to form a microstructure comprising dendrites, and then solution annealing for homogenizing the cast microstructure of the component and two-stage precipitation heat treatment are carried out. In order to avoid chemical inhomogeneities and internal stresses caused thereby, a HIP process with a pressure of higher than 160 MPa is carried out following the solution annealing.