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. 11, 2006
Filed:
Nov. 05, 2002
Mohamed Nazmy, Fislisbach, CH;
Joachim Roesler, Braunschweig, DE;
Alexander Schnell, Ennetbaden, CH;
Christoph Toennes, Brugg, CH;
Mohamed Nazmy, Fislisbach, CH;
Joachim Roesler, Braunschweig, DE;
Alexander Schnell, Ennetbaden, CH;
Christoph Toennes, Brugg, CH;
ALSTOM Technology LTD, Baden, CH;
Abstract
In a heat treatment process for a single-crystal or directionally solidified material body comprising a nickel-based superalloy, the material body is solution-annealed and then at a first temperature γ' particles of greater than 1 μm are precipitated in a proportion by volume with V−Vof less than 50%, where Vis the total amount of γ′ particles after complete heat treatment and Vis the proportion of the γ′ particles which is greater than 1 μm, and at least at a second temperature 'γ' particles of less than 1 μm are precipitated. The γ′ particles are preferably precipitated in a size of 2 pin or more with a proportion by volume of 0.25<(V−V)/(100−V)<0.55 at the first temperature. The proportion by volume Vof the γ′ particles will be at least 50%.