Mtu Aero Engines Ag

Mtu Aero Engines Gmbh

Boehler Schmiedetechnik Gmbh & Co Kg

Martin Schloffer

Wilfried Smarsly

Helmut Clemens

Wilfried Wallgram

Heiko Warnecke

Svea Mayer

Marc Haltrich

Thomas Klein

Nanxi Zheng

The present invention relates to a method for producing a component of a &#x3b3;-TiAl alloy, in which, in a first step, a forging blank made of a &#x3b3;-TiAl alloy is built up from a powder material by an additive method, and subsequently, in a second step, the forging blank is reshaped into a semi-finished product, wherein the degree of reshaping over the entire forging blank is high enough that, in a third step, the structure is recrystallized during a heat treatment. In addition, the invention relates to a component produced therefrom.

Method for producing a component of gamma&#x2014;TiAl and component produced therefrom

Described is a TiAl alloy which, besides titanium, comprises 42 to 48 at. % aluminum, 3 to 5 at. % niobium, 0.05 to 1 at. % molybdenum, 0.2 to 2.2 at. % silicon, 0.2 to 0.4 at. % carbon, 0.05 to 0.2 at. % boron, and optionally tungsten, zirconium and hafnium, as well as unavoidable impurities, and at room temperature has a microstructure which comprises globular colonies of lamellae of &#x3b1;-TiAl and &#x3b3;-TiAl, as well as silicide precipitates, and essentially no &#x3b2; phase. A method for producing a component made of this alloy is also described.

High temperature resistant TiAl alloy, production method therefor and component made therefrom

Disclosed is a process for coating a component of a TiAl alloy in order to improve the high-temperature resistance of the component. The process comprises depositing a Pt- and Cr-free protective layer alloy comprising Ti, Al, Nb, Mo and B and optionally one or more of W, Si, C, Zr, Y, Hf, Er and Gd on the component by physical vapor deposition at a temperature of less than or equal to 600&#xb0; C. The protective layer alloy has a higher Al content than the TiAl alloy of the component. A coated component made by this process is also disclosed.

High-temperature protective layer for titanium aluminide alloys

Disclosed is a process for producing a component from a TiAl alloy by layer-by-layer deposition of powder on a substrate and/or an already produced semifinished product. The component has a proportion of x at % of aluminum which is in the range from about 34 to about 47 at % of aluminum, the powder having a proportion of x+1 at % to x+6 at % of aluminum. Also disclosed is a component formed from a TiAl alloy which has been produced by a corresponding process.

Additive manufacturing of high-temperature components from TiAl

Disclosed is a method for producing a blade for a turbomachine, in particular for an aero engine. The method comprises providing at least one blade airfoil with a first platform region and at least one blade root with a second platform region and joining the blade airfoil and the blade root at the respective platform regions by a friction welding method at a common joint region of the platform regions, the blade airfoil and the blade root being made of materials which are different from each other. Also disclosed is a blade which is and/or can be obtained by such a method.

Method for producing a blade for a turbomachine

The present invention relates to a TiAl alloy for use at high temperatures which has aluminum and titanium as main constituents. The TiAl alloy has an aluminum content of greater than or equal to 50 at. % and a matrix of &#x3b3;-TiAl and at least one phase of Al and Ti incorporated in the &#x3b3;-TiAl matrix which is different from &#x3b3;-TiAl, as well as depositions of oxides and/or carbides and/or silicides. In addition, the invention relates to a method for producing the alloy and to the use of the alloy for components of turbo-machines, in particular aircraft engines.

Al-rich high-temperature TiAl alloy

An apparatus and a process for producing forged components composed of TiAl alloys, wherein a melt of a TiAl alloy is provided and is cast by horizontal centrifugal casting so as to produce at least one semifinished TiAl cast part and the semifinished TiAl cast part is converted by forging into a forged TiAl part.

Process and apparatus for producing forged TiAl components

The present invention relates to a TiAl alloy for use at high temperatures having the main constituents titanium and aluminum and having a proportion of aluminum of greater than or equal to 30 at. % and a matrix composed of &#x3b2; phase and precipitates of &#x3c9; phase embedded in the matrix, with the &#x3b2; phase and the &#x3c9; phase together making up at least 55% by volume of the microstructure, and also a process for the production thereof and the use thereof.

High-temperature TiAl alloy

The present invention relates to a process for producing a component, in particular a component for a turbomachine, composed of a TiAl alloy, which comprises the following:

Production process for TiAl components

The present invention relates to a protective layer for TiAl materials for affording protection against oxidation, said protective layer having a layer sequence which, proceeding from the inner side facing toward the TiAl material (), has an inner aluminum oxide layer (), a first gradient layer () comprising aluminum and a base metal with a base metal content increasing outward toward the surface side, a base metal layer (), a second gradient layer () comprising aluminum and a base metal with an aluminum content increasing outward toward the surface side, and an outer aluminum oxide layer (), and also to a method for the production thereof.

Oxidation-resistant layer for TiAl materials and method for the production thereof

A method for producing a component of a titanium-aluminum base alloy comprising hot isostatically pressing the alloy to form a blank, subjecting the blank to a hot forming by a rapid solid-blank deformation, followed by a cooling of the component to form a deformation microstructure with high recrystallization energy potential, thereafter subjecting the component to a heat treatment in the range of the eutectoid temperature (T) of the alloy, followed by cooling in air, to form a homogeneous, fine globular microstructure composed of phases GAMMA, BETA, ALPHAand having an ordered atomic structure at room temperature. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

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Munich, Germany

Martin Schloffer