Siemens Aktiengesellschaft

Siemens Energy, Inc.

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Siemens Aktiengesell Schaft

Sebastian Piegert

Michael Ott

Bernd Burbaum

Robert Singer

Peter Randelzhofer

Kazim Ozbaysal

Georg Bostanjoglo

Norbert Pirch

Andres Gasser

Arturo Flores Renteria

Nikolai Arjakine

Patrick Lapp

Uwe Paul

Stefanie Linnenbrink

Britta Stöhr

Simon Purschke

Ingo Reinkensmeier

Thomas Hauser

Britta Laux

Thomas Malow

Frank Mentzel

Timo Depka

Kazim Kazim

Winfried Eßer

Andreas Kreutzer

For the first time, components can be produced from MAX-phases due to the use of an additive production method. A method for producing a component from MAX phases, in particular from TiSiCand/or CrAlC, in which an additive manufacturing process is disclosed. Powder is applied layer by layer and densified, the grain sizes of the powder lying at 10 &#x3bc;m to 60 &#x3bc;m, in which the scanning speed between the energy beam of the laser or electron beam and substrate with powder lies between 400 mm/s and 2000 mm/s, in particular at 1000 mm/s to 1500 mm/s, in which the power output is between 80 W and 250 W, in particular is 100 W to 170 W, in which a spot size of the energy beam lies between 30 &#x3bc;m and 300 &#x3bc;m.

Method for producing a component from MAX phases

The use of a specific molybdenum-silicon-boron alloy and a particular production process in which powder is used makes it possible to achieve components which have a particular fiber-matrix structure and can be used for high-temperature applications and can also be produced inexpensively.

Molybdenum-silicon-boron alloy and method for producing same, and component

A method for producing a component by the successive solidification of individual layers of powdered, granular or liquid material by irradiation with laser radiation using a laser, each layer being divided into an inner region and an edge region with an edge region surface, and, for each layer, after irradiation with the laser, at least the edge region surface of the edge region of the layer being irradiated with an ultrashort pulse laser. An optical irradiation device produces a component by successive solidification of individual layers of powdered, granular or liquid material.

Method for producing a component, and an optical irradiation device

A method for generating, in layers, an application structure made of high heat resistant super alloys on a substrate is provided. A powdery construction material is melted by an energy beam at a working point, wherein the working point is guided across the substrate along a primary movement direction and thus swings transversely to the primary movement direction. The working point thereby swings from a first edge of a respective layer of the application structure to a second edge of the layer. In this way, a time interval passes between departure from a respective edge and a return to the respective edge directly following the departure, such that a melt bath on the respective edge solidifies into a paste-like zone during the time interval.

Laser build-up welding of high heat resistant super alloys by means of oscillating beam guidance

A multi component braze filler alloy is described having a melting temperature less than about 1235 deg. C. and greater than about 1150 deg. C. This alloy can be processed by hot isostatic pressing (HIP) at a temperature above about 1065 deg. C. and is particularly suited for the repair of gas turbine blades and vanes, especially those made from Alloy 247. The relatively low Ti content in the present braze alloy tends to form less MC carbides at the joint interface, particularly in comparison with other braze alloys high in Zr and/or Hf. Processes for employing this braze filler alloy in processing of nickel-base superalloys, especially Alloy 247, are presented.

Low melting point braze alloy for high temperature applications

A multi component braze filler alloy is described having a melting temperature less than about 1235 deg. C. and greater than about 1150 deg. C. This alloy can be processed by hot isostatic pressing (HIP) at a temperature above about 1065 deg. C. and is particularly suited for the repair of gas turbine blades and vanes, especially those made from alloy 247. The relatively low Ti content in the present braze alloy tends to form less MC carbides at the joint interface, particularly in comparison with other braze alloys high in Zr and/or Hf.

A germanium containing nickel-based solder having a similar composition to a nickel-based superalloy is provided. As a result of which the proportion of &#x3b3;' formed in the solder is reduced. The solder also includes chromium, cobalt, molybdenum, tungsten, aluminum, and titanium. A component including the solder is also provided.

Germanium-containing solder, a component comprising a solder and a process for soldering

Cobalt-based solder alloys are proposed. The cobalt-based solder alloys have germanium. The germanium has a higher melting point than nickel-based alloys such that the germanium is used advantageously for repairing or treating components having the nickel-based alloys used at high temperatures. The components are repaired or treated by soldering using the cobalt-based solder alloys.

Cobalt-based alloy comprising germanium and method for soldering

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Lübbenau, Germany

Sebastian Piegert