Siemens Aktiengesellschaft

Oliver Lüsebrink

Peter Schröder

Fathi Ahmad

Marc Tertilt

Mirko Milazar

Tobias Buchal

Oliver Schneider

Sascha Dungs

Winfried Esser

Nicolas Savilius

Uwe Kahlstorf

Stefan Krause

Birgit Grüger

Marco Link

Norbert Thamm

Gerhard Simon

Martin Hartmann

Vadim Shevchenko

Roderich Bryk

Shilun Sheng

Alessandro Casu

Karl Klein

Waldemar Socha

Andre Botzen

A layer system is provided having at least two layers, an inner layer on a boundary surface of a substrate, wherein the inner layer has a certain roughness in a region of the surface to an outer layer due to a coating processes, wherein a roughness of the boundary surface of the substrate is set in a targeted manner, or the boundary surface is machined, after it has been produced, such that the roughness of the boundary surface of the substrate has peaks and troughs that are at least 20% greater than the roughness of the interface if peaks and troughs were not to be present. As a result of the structured surface of the substrate, this roughness becomes positioned on an interface of the layers located above, and the adhesion of the layers to one another is thereby improved.

Layer system with a structured substrate surface and production process

A component, designed so that the longitudinal grain which experiences the greatest stress has a larger grain width than the other grains, is provided. This longitudinal grain is usually on the edge of the component. The component includes longitudinal grains that are directionally solidified in a rod-crystalline form along the longitudinal axis of the component.

Elongate component having longitudinal grains with different widths

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.

Axially segmented guide vane mount for a gas turbine

Growing community of inventors

Witten, Germany

Oliver Lüsebrink