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US 11,994,040 B2Granted
System and method for repairing high-temperature gas turbine components
AssigneeSiemens Energy, Inc.
InventorsAnand A. Kulkarni, Kazim Ozbaysal, Ahmed Kamel, Kyle I. Stoodt
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Abstract
A method of forming a component includes mixing a powdered base material and a binder to define a mixture, forming the mixture into a desired shape without melting the base material, removing the binder from the desired shape to define a skeleton, the volume of the skeleton being between 80 percent and 95 percent base material, and infiltrating the skeleton with a melting point depressant material to define a finished component, the finished component having less than one percent porosity by volume.
Claims13
A method of forming a pre-sintered preform, the method comprising:
- mixing a powdered base material and a binder to define a mixture;
- forming the mixture into a shape without melting the base material;
- removing the binder from the shape to define a skeleton, the skeleton having a volume that contains between 80 percent and 95 percent base material;
- and
- infiltrating the skeleton with a melting point depressant material to define a finished pre-sintered preform, the finished pre-sintered preform having less than one percent porosity by volume,
- wherein at least one of the mixture or the melting point depressant material includes at least one of powdered rhenium or ruthenium and the combined percentage of rhenium and ruthenium is 6% or less of the finished pre-sintered preform.
3 more elements
Dependencies are inferred from the claim text.