Abstract: A high-temperature component made of a nickel super-alloy has the following composition in wt %: 11-13% of Cr, 3-5% of W, 0.5-2.5% of Mo, 3-5% of Al, 3-5% of Ti, 3-7% of Ta, 1-5% of Re and a remainder of nickel.

Abstract: A high-temperature component made of a nickel super-alloy has the following composition in wt %: 11–13% of Cr, 3–5% of W, 0.5–2.5% of Mo, 3–5% of Al, 3–5% of Ti, 3–7% of Ta, 1–5% of Re and a remainder formed of nickel. A corresponding component which is also provided is formed of an alloy having a composition essentially similar to that mentioned above, but with the rhenium proportion replaced with 0.1–5 wt % of ruthenium.

Abstract: A metallic layer is cooled below room temperature, leading to an embrittlement. Subsequently, the metallic layer is stripped by performing a blasting process having a high efficiency because of the brittleness. Additionally, the substrate is prevented from being damaged by using a comparatively low blasting energy.

Abstract: During a solution heat treatment grain recrystallization may occur of a textured article, especially at the surface rim.

Abstract: In a method of producing a turbine blade in hollow section, an especially low defect or scrap rate is to be ensured. To this end, a first core element is connected via a number of approximately cylindrical spacers to a further core element and/or to a casting mold, the cavities left in the casting mold by the core elements being filled by blade material, and the openings remaining in the turbine blade after the removal of the core elements and the spacers and produced by the spacers being closed by stopper elements.

Abstract: During a solution heat treatment grain recrystallization may occur of a textured article, especially at the surface rim. The present invention provides a method for restoring the microstructure of a textured article, such as a gas turbine engine blade, which comprises coating the surface of the article with a high temperature stable surface coating or by a controlled development of an oxide scale and subsequently performing a solution heat treatment, thereby maintaining said thermally stable surface coating.

Abstract: Directionally solidified columnar grain nickel base alloy casting consisting essentially of, in weight %, of about 11.6% to 12.70% Cr, about 8.50 to 9.5% Co, about 1.65% to 2.15% Mo, about 3.5% to 4.10% W, about 4.80% to 5.20% Ta, about 3.40 to 3.80% Al, about 3.9% to 4.25% Ti, about 0.05% to 0.11% C, about 0.003% to 0.015% B, balance essentially Ni and having substantial transverse stress rupture strength and ductility as compared to a similar casting without boron present.

Abstract: A metallic layer is cooled below room temperature, leading to an embrittlement. Subsequently, the metallic layer is stripped by performing a blasting process having a high efficiency because of the brittleness. Additionally, the substrate is prevented from being damaged by using a comparatively low blasting energy.

Abstract: During a solution heat treatment grain recrystallization may occur of a textured article, especially at the surface rim. The present invention provides a method for restoring the microstructure of a textured article, such as a gas turbine engine blade, which comprises coating the surface of the article with a high temperature stable surface coating or by a controlled development of an oxide scale and subsequently performing a solution heat treatment, thereby maintaining said thermally stable surface coating.

Abstract: In a method of producing a turbine blade in hollow section, an especially low defect or scrap rate is to be ensured. To this end, a first core element is connected via a number of approximately cylindrical spacers to a further core element and/or to a casting mold, the cavities left in the casting mold by the core elements being filled by blade material, and the openings remaining in the turbine blade after the removal of the core elements and the spacers and produced by the spacers being closed by stopper elements.

Abstract: A high-temperature component made of a nickel super-alloy has the following composition in wt %: 11-13% of Cr, 3-5% of W, 0.5-2.5% of Mo, 3-5% of Al, 3-5% of Ti, 3-7% of Ta, 1-5% of Re and a remainder formed of nickel. A corresponding component which is also provided is formed of an alloy having a composition essentially similar to that mentioned above, but with the rhenium proportion replaced with 0.1-5 wt % of ruthenium.

Abstract: A turbine blade, in particular a gas-turbine blade, which extends along a main axis from a root region over a blade body region to a tip region. The turbine blade has a cavity in the blade body region, at least regions of the cavity being surrounded by a blade wall having a small wall thickness. The blade wall is formed of a metallic material having a small average grain size. In addition, a method of producing the turbine blade is further disclosed.

Abstract: Machineable nickel base alloy casting, consisting essentially of, in weight %, about 12.5% to 15% Cr, about 9.00% to 10.00% Co, about 3.70% to 4.30% Mo, about 3.70% to 4.30% W, about 2.80% to 3.20% Al, about 4.80% to 5.20% Ti, about 0.005% to 0.02% B, up to about 0.10% Zr, and balance essentially Ni and carbon below about 0.08 weight % to improve machinability while retaining alloy strength properties after appropriate heat treatment.

Abstract: In a method for removing tin from a surface and/or from a region close to the surface of a component part, the component part has a concentrated aqueous sodium hydroxide or concentrated hydrochloric acid flowing in contact with it at a temperature which is distinctly higher than room temperature. Preferably, the temperature is approximately 220.degree. C., and the component part is moreover subjected to a positive pressure of 5.5 bar. The method is suitable for a component part fabricated through the use of unidirectional solidification and liquid-metal cooling, in particular a turbine blade.