Siemens Aktiengesellschaft

Mtu Aero Engines Gmbh

Howmet Corporation

Siemens Energy Global Gmbh & Co. Kg

Siemens S.a.s

Uwe Paul

Thomas Beck

Fathi Ahmad

Michael Ott

Robert Singer

Ursula Pickert

Georg Bostanjoglo

Eckart Schumann

Tobias Buchal

Volker Vosberg

Andreas Heselhaus

Andreas Volek

Dirk Goldschmidt

Jan Steinbach

Russell G Vogt

Winfried Esser

Matthias Oechsner

Nihal Kurt

Said El Fassi

Winfried Eβer

Christopher R Hanslits

Christian Nikasch

Kang Qian

Martin Wilke

Wolfgang Windolf

Beate Seiler

Michael Stemmler

Armand Pierre Bohe

Elke Henschel

Simon Kliesch

Alexander Schaufler

Albrecht Rieger

Philipp Nörtershäuser

Winfried Eßer

Russel G Vogt

A nickel-based superalloy is provided. Known nickel-based superalloys for producing components made of stem shaped single crystals do not provide sufficiently for grain boundary strength. The superalloy includes a low molybdenum content and very accurately adjusted values for elements having grain boundary strength and elements that precipitate in grain boundaries.

Alloy for directional solidification and component made of stem-shaped crystals

In one aspect, a repair method for repairing components comprising a base material with a directed microstructure is provided. The repair is performed in such a way that the repaired location correspondingly has a directed microstructure like the surrounding base material. A solder is applied in the region of a location to be repaired and is soldered to the component via heat exposure, a temperature gradient, i.e., for instance a temperature variation from a higher temperature to a lower temperature, is thereby produced in the region of the location to be repaired.

Process for repairing a component comprising a directional microstructure by setting a temperature gradient during the laser heat action, and a component produced by such a process

A method for producing a pattern for the precision-cast representation of a component having a cavity is provided. In the method wherein the component is a turbine component having a cavity, the finished pattern comprises a core and an outer contour pattern, the outer contour pattern at least partially surrounds the core and at least partially defines the outer contour of the turbine component. The core is produced from a curable core material, which cures during the course of the method, and the outer contour pattern is produced from a material which can be burned or melted out. In this case, first the outer contour pattern is produced with a cavity corresponding to the cavity of the turbine component and subsequently the curable core material is filled into the cavity and cured to produce the core.

Method for producing a pattern for the precision-cast preparation of a component comprising at least one cavity

The invention relates to a method for repairing components comprising a base material with an oriented microstructure, wherein the repair point comprises a correspondingly oriented microstructure as the surrounding base material. According to the inventive method, solder is applied in the region of a point which is to be repaired and is soldered to the component by means of a heating effect produced by a device. A temperature gradient, i.e., approximately a temperature characteristic, is produced during the heating effect, said temperature characteristic ranging from a high to a low temperature in the region of the point which is to be repaired.

Repair soldering method for repairing a component which comprises a base material with an oriented microstructure

The invention relates to a heat treatment method for monocrystalline or directionally solidified structural components. Said method comprises a heat treatment which results in dissolving at least one crystalline phase of the material of the structural component, referred to in the following as component material. The inventive method is characterized by carrying out the heat treatment by heating the structural component to a dissolution temperature required for dissolving the crystalline phase only in at least one first component area in which the stresses within the component material do not exceed a predetermined value. In at least one second component area in which the stresses within the component material exceed the predetermined value the material is only heated to a temperature below the dissolution temperature.

Heat treatment method for monocrystalline or directionally solidified structural components

According to the prior art, through-holes in components are often introduced after the production (casting) of the component. This entails additional outlay in terms of time and equipment. The time required can be considerably shortened if a casting mold is designed in such a way that the through-hole is at least in part formed by corresponding projections being formed on the inner wall and/or the outer wall of the casting mold.

Casting mold

Coating systems according to the prior art, wherein a ceramic layer is applied to a metallic layer of the coating system, the connection between metal and ceramic often being poor. A coating system () according to the invention has a porous layer () in which a ceramic () is at least partly disposed, so that the connection between ceramic () and the metal of the porous layer () is improved.

Layer system comprising a substrate, and an outer porous layer

Growing community of inventors

Ratingen, Germany

Uwe Paul