Abstract: A turbomachine component having a main body and a multilayer coating, which is applied directly to the main body is provided. The multilayer coating is at least 5 ?m and at most 35 ?m thick and has a plurality of layers applied directly one on top of the other, wherein the layer applied directly to the main body is an adhesion promoting layer, which comprises chromium nitride, and at least one of the remaining layers comprises a hard material.

Abstract: A turbomachine component having a main body and a multilayer coating, which is applied directly to the main body is provided. The multilayer coating is at least 5 ?m and at most 35 ?m thick and has a plurality of layers applied directly one on top of the other, wherein the layer applied directly to the main body is an adhesion promoting layer, which comprises chromium nitride, and at least one of the remaining layers comprises a hard material.

Abstract: A method for producing a part from ductile iron, including the steps of designing the part in such a way that the part is composed of a plurality of part components, producing the part components from ductile iron, providing the part components in pairs, depositing buffer material onto the rim edge of the first part component and onto the rim edge of the second part component by means of deposition welding, laying the second part component with the rim section thereof on the rim section of the first part component so that the rim edges lie against each other with the buffer materials thereof, and welding the rim sections, wherein the buffer material is selected in such a way that a structure change in the ductile iron material of the part components is prevented when the rim sections are welded.

Abstract: A method for the cohesive connection of two components, in particular two rotating shaft parts, in a connecting region, is provided, wherein integrally formed portions for manipulating the surface geometry of the components are positioned adjacent to the connecting region, wherein the two components are welded together and wherein a subsequent heat treatment is carried out for the targeted introduction of residual compressive stresses, the distribution of which is also determined by the manipulated surface geometry.

Abstract: A stator blade carrier for a gas turbine is provided. The stator blade carrier includes a plurality of axial segments. At least one axial segment is designed as a tubular lattice structure. This allows a simpler design technically and a more flexible adaptation to the temperature profile present on the stator blade carrier to maintain operational safety.

Abstract: An alloy is provided. The alloy comprises (in % by weight): silicon 2.0%-4.5%, in particular 2.3%-3.9%, carbon 2.9%-4.0%, in particular 3.2%-3.7%, niobium 0.05%-0.7%, in particular 0.05%-0.6%, molybdenum 0.3%-1.5%, in particular 0.4%-1.0%, and optionally cobalt 0.1%-2.0%, in particular 0.1%-1.0%, manganese ?0.3%, in particular 0.15-0.30%, nickel ?0.5%, in particular ?0.3%, magnesium ?0.07%, in particular at least 0.03%, phosphorus ?0.05%, in particular 0.02%-0.035%, sulfur ?0.012%, in particular ?0.005%, chromium ?0.1%, in particular ?0.05%, antimony ?0.004%, in particular ?0.003%, and iron.

Abstract: Known cast iron alloys have use limits in respect of the temperature. An alloy (in a weight percentage) including silicon 2.0%-4.5%, carbon 2.9%-4.0%, niobium 0.05%-0.7%, molybdenum 0.3%-1.5%, optionally cobalt 0.1%-2.0%, manganese?0.3%, nickel?0.5%, magnesium?0.07%, phosphorus?0.05%, sulphur?0.012%, chromium?0.1%, antimony?0.004%, and, iron, is provided.

Abstract: A method for producing a part from ductile iron, including the steps of designing the part in such a way that the part is composed of a plurality of part components, producing the part components from ductile iron, providing the part components in pairs, depositing buffer material onto the rim edge of the first part component and onto the rim edge of the second part component by means of deposition welding, laying the second part component with the rim section thereof on the rim section of the first part component so that the rim edges lie against each other with the buffer materials thereof, and welding the rim sections, wherein the buffer material is selected in such a way that a structure change in the ductile iron material of the part components is prevented when the rim sections are welded.

Abstract: A stator blade carrier for a gas turbine is provided. The stator blade carrier includes a plurality of axial segments. At least one axial segment is designed as a tubular lattice structure. This allows a simpler design technically and a more flexible adaptation to the temperature profile present on the stator blade carrier to maintain operational safety.

Abstract: A turbine guide vane support for an axial-flow gas turbine is provided. The support includes a tubular wall having an inflow-side end and an outflow-side end for a hot gas flowing in the interior of the turbine guide vane support in a flow path of the gas turbine. Cooling channels for a coolant are provided in the wall. The cooling channels extend from a coolant inlet to a coolant outlet, respectively. At least one of the cooling inlets and one of the cooling outlets, respectively, is disposed at the outflow-side end of the turbine guide vane support, wherein the cooling channel associated with the respective inlet and outlet extends up to the inflow-side end of the turbine guide vane support and transitions to a redirecting area from which the respective cooling channel further extends to the outflow-side end.

Abstract: Known cast iron alloys have application limits with regard to temperature. A cast iron including cobalt is provided. Through the use of cobalt, an optimal ferritic microstructure is achieved such that with an alloy having silicon 2.0-4.5 wt %, cobalt 0.5-5 wt %, carbon 2.0-4 wt %, molybdenum 0.3-1.48 wt %, manganese ?0.5 wt %, nickel ?0.5 wt %, the remainder iron, wherein the proportion of silicon, cobalt, and molybdenum is preferably less than 7.5 wt %, the application limits are shifted to high temperatures.

Abstract: Cast iron alloys have application limits with regard to temperature. By means of the use of cobalt an optimal ferritic structure can be achieved such that with an alloy containing silicon 2.0-4.5 wt. %, cobalt 0.5-5 wt. %, carbon 2.5-4 wt. %, molybdenum?1 wt. %, manganese?0.25 wt. %, nickel?0.3 wt. %, the remainder iron where the proportion of silicon cobalt and molybdenum is less than 7.5 wt. % the application limits are shifted to higher temperatures.