Repair of turbine components and solder alloy for this purpose

The present invention relates to a method for repairing gas turbine components made of a superalloy having the following steps: a) providing a Ni-based solder and / or a solder alloy consists of a mixture of a NiCoCrAlY alloy and the Ni-based solder; b) application of the solder and / or the solder alloy for cracks and punctual or linear recesses and / or areas of the component over a wide area of ​​material; c) providing a repair molded article of the solder alloy; d) applying the repair mold part to the areas of the component over a wide area of ​​material with or without arranged solder and / or braze alloy; and e) heat treatment of the component for soldering and a solder alloy for gas turbine components made of a superalloy, in particular for use in a corresponding repair procedure with a proportion of a refractory material and a proportion of a low-melting material, the refractory material is a NiCoCrAlY alloy and the low-melting material is a Ni-based solder with at least 15 wt .-% of chromium and at least 15 wt .-% iron.