Method and apparatus for repairing gas turbine components made of ceramic composite materials

摘要

Method for repairing a gas turbine component, which at least at the spot to be repaired consists of a ceramic composite material, where an energy beam locally heats the gas turbine component in a zone, and where one or more auxiliary materials and optionally fibers and/or particles are fed to this zone, wherein a ceramic is generated in the melting zone through the one or more auxiliary materials, and, optionally, the one or more auxiliary materials together with the fibers and/or particles forms a ceramic composite material.

主权项

1. A method for repairing a gas turbine component, comprising:
heating a portion of a gas turbine component via an energy beam in a melting zone, wherein the energy beam is directed onto a surface of the portion of the gas turbine component, wherein a base material of the gas turbine component, at least at a spot to be repaired, comprises:
a first ceramic composite material, wherein the spot to be repaired is in the melting zone; feeding one or more auxiliary materials to the melting zone, wherein a ceramic is generated, at least at the spot to be repaired, in the melting zone from the one or more auxiliary materials, wherein the one or more auxiliary materials completely or partially react to generate the ceramic in a chemical reaction in the melting zone; and feeding fibers and/or particles to the melting zone, wherein a second ceramic composite material is generated in the melting zone from the one or more auxiliary materials and the fibers and/or particles, wherein the second ceramic composite material is in contact with the base material of the gas turbine component, at least at the spot to be repaired.