Siemens Energy Global Gmbh & Co. Kg

Siemens Aktiengesellschaft

Alexander Luithle

Torsten-Ulf Kern

Jörn Bettentrup

Stefan Brussk

Stefan Brußk

Jörg Schürhoff

Tim Schreiber

Combining a precipitation-hardening nickel-base alloy with a steel or titanium substrate makes it very easy to repair parts, the nickel-base alloy having good erosion-resistant properties. A method for producing is disclosed. In particular for repairing, a component having a substrate, in particular turbine blades made of steel or titanium, in particular made of martensitic or precipitation-hardening chromium-rich steels, with a localized deposition weld or with an affixed shaped part, in which a precipitation-hardening nickel-based alloy is used as the localized deposition weld or as the shaped part, in which a laser powder deposition weld or an arc deposition weld is performed.

Method for making steel or titanium products containing a precipitation-hardening nickel-base alloy, and part

A rotor shaft for a turbine rotor of a turbine, in particular a steam turbine, having a shaft main body made of a first material and at least one ring which is made of a second material and is attached to the shaft main body, wherein the second material has equal or greater strength and/or greater corrosion resistance than the first material, wherein at least one blade slot is formed on the ring, and wherein the ring is materially bonded to the shaft main body by narrow-gap welding.

Rotor shaft and method for producing a rotor shaft

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Bochum, Germany

Alexander Luithle