| Patent Number |
Title Of Patent |
Date Issued |
| 7553384 |
Local heat treatment for improved fatigue resistance in turbine components |
June 30, 2009 |
| A method for locally heat-treating a gas turbine engine superalloy article to improve resistance to strain-induced fatigue of the article is disclosed. The method comprises providing a gas turbine engine superalloy article having a gamma prime solvus temperature; and locally over aging |
| 7537725 |
Method for making a compositionally graded gas turbine disk |
May 26, 2009 |
| A compositionally graded gas turbine disk is made by placing a cylindrically symmetric slip case concentrically into an interior of a cylindrically symmetric outer container. A first nickel-base superalloy powder is loaded into a radially inner first portion of the interior and a sec |
| 7138020 |
Method for reducing heat treatment residual stresses in super-solvus solutioned nickel-base supe |
November 21, 2006 |
| In accordance with an embodiment of the present invention, a method for reducing residual stress in a nickel-base superalloy article comprising about 40 70% of gamma prime phase and having a gamma prime solvus temperature is disclosed. The method comprises the steps of super-solvus h |
| 7033448 |
Method for preparing a nickel-base superalloy article using a two-step salt quench |
April 25, 2006 |
| An article made of a nickel-base superalloy strengthened by the presence of a gamma-prime phase is prepared by solution heat treating the nickel-base superalloy at a solutionizing temperature above a gamma-prime solvus temperature of the nickel-base superalloy, thereafter first quenc |
| 6969238 |
Tri-property rotor assembly of a turbine engine, and method for its preparation |
November 29, 2005 |
| A rotor assembly of an axial flow turbine engine has a bladed ring including a ring, and a plurality of turbine blades affixed to the ring and extending radially outwardly from the ring. There is a solid state weld joint between a central disk hub and the ring of the bladed ring. In |
| 6894244 |
Method for fabricating embossed articles by flash welding |
May 17, 2005 |
| An article with an embossment thereon is fabricated by providing an article precursor, providing an embossment precursor, and flash welding the embossment precursor and the article precursor together, to form the article with the embossment thereon. |
