Abstract: A nickel-based coating or alloy is provided. The coating includes tantalum preferably without rhenium. The coating or alloy has stabilized the formation of phases ?/?? at high temperatures leading to a reduction of local stresses. A component is also provided. The substrate of the component includes a nickel-based or cobalt-based superalloy.

Abstract: A nickel-based coating or alloy is provided. The coating includes tantalum preferably without rhenium. The coating or alloy has stabilized the formation of phases ?/?? at high temperatures leading to a reduction of local stresses. A component is also provided. The substrate of the component includes a nickel-based or cobalt-based superalloy.

Abstract: Heat-insulating layer systems must have a long service life of the heat-insulating layer in addition to a good heat-insulating property. A layer system including a sequence of layers specially matched to each other, the sequence including metallic connection layer, an inner ceramic layer, and an outer ceramic layer is provided.

Abstract: Protective layers, according to the prior art, achieve their protective function b depletion of a defined element that forms a protective oxide layer or that is exhausted as a sacrificial material. Once said material is exhausted, the protective function cannot be maintained. The invention is characterized by using particles (1) that contain a sustained-release depot of the exhaustible material. For this purpose, the material is present in a superstoichiometric form.

Abstract: A protective layer includes a composition (in wt %) of 24%-26% cobalt (Co), 9%-12% aluminum (Al), 0.1%-0.7% yttrium (Y) and/or at least one equivalent metal from the group comprising scandium and the rare earth elements, 16%-25% chromium (Cr), 1.0%-4.0% rhenium (Re), 0.1%-0.7% phosphorus (P), 0.2%-0.6% silicon (Si), and nickel.

Abstract: A two-ply MCrAlX layer is provided. The two-ply MCrAlX layer includes nickel and cobalt, but also Cr, Al and Y, differ significantly, in order to improve both oxidation resistance and thermal-mechanical strength. A layer system including a substrate and the two-ply MCrAlX layer is also provided. The MCrAlX layer includes an inner layer and an outer layer.

Abstract: Known protective layers with a high Al and/or Cr content and additionally strengthened by Re form brittle phases which become more brittle during use under the influence of carbon. The protective layer according to the invention has the composition 0.5 to 2% rhenium, 24 to 26% cobalt, 15 to 21% chromium, 9 to 11.5% aluminum, 0.05 to 0.7% yttrium and/or at least one equivalent metal selected from the group consisting of scandium and the rare earth elements, 0 to 1% ruthenium, remainder cobalt and/or nickel and manufacturing-related impurities, and reveals scarcely any embrittlement caused by Cr/Re precipitates.

Abstract: In order to improve both oxidation stability and thermo-mechanical stability, a two-layer MCrAlX coating is provided, wherein the contents of nickel and cobalt, but also chromium, aluminum, and zirconium, differ significantly. Each layer of the two layer coating may be the same thickness or the inner layer is thicker than the outer layer.

Abstract: A process for coating a surface of a potentially fuel-conducting component of a turbine, in particular a gas turbine, in which the surface is firstly coated with a titanium nitride layer and subsequently with an a-aluminium oxide layer by means of chemical vapour deposition, is disclosed. In addition, a turbine component for example a component of a gas turbine, which includes a base material and a potentially fuel-conducting surface is described. The surface has an intermediate layer including titanium nitride and a covering layer including a-aluminium oxide.

Abstract: The layer system according to the invention uses different grain size distributions for the layer, in order to improve the bonding of the layer to a substrate; a different grain size distribution is used for the outer part of the layer.

Abstract: A nickel-based protective layer which has a high percentage in chromium and optionally silicon and/or yttrium is provided. The nickel-based protective layer is used as low-temperature corrosion protective layer of nickel-or cobalt-based alloys. The alloy of which the layer is made and a layer system are also provided. The alloy may also include a refractory element such as hafnium or scandium.

Abstract: Ceramic coatings for a component that is subjected to high temperatures, especially for a turbine blade are provided. The ceramic coatings contain one or more compounds that are selected from alkaline earth silicates, ZrV2O7 and Mg3(VO4)2. A layer system including at least one coating of the ceramic coating is also provided.

Abstract: A burner element is provided. The burner element includes a surface that potentially comes into contact with a fuel. The surface potentially coming into contact with the fuel has a coating including aluminum oxide. A burner including the burner element is also provided. Further, a method for coating a surface of a burner element potentially coming into contact with a fuel is described, wherein the surface potentially coming into contact with the fuel is coated with aluminum oxide.

Abstract: The invention relates to a compound with the nominal chemical composition AlwCoxMy wherein M represents at least one of the elements selected from the group Ni, Cr, and at least 30 mass percent of the compound is a quasicrystalline structure or similar. The invention is characterized in that 70?w?76 and w+X+Y=100.

Abstract: A corrosion-resistant pressure vessel steel is provided. The corrosion-resistant pressure vessel is formed by aluminization of a pressure vessel steel and deliberate oxidation of the layer which has been enriched in this way. Also provided is a process for producing a corrosion-resistant pressure vessel product. The process includes alitizing the pressure vessel steel and then oxidizing the steel before it is used for the first time. Lastly, a gas turbine component using the pressure vessel steel product is provided.

Abstract: NiCoCrAl layers used as anticorrosive layers characterized by additional corrosion stability enhancing agents that substantially improve the anticorrosive properties are provided. Corrosion stability is not only determined by the composition and the percentage of the main alloy elements of nickel, cobalt, chromium and aluminium, but also by the addition of corrosion stability enhancing agents, such yttrium, cerium, tantalum, niobium, silicon, titanium, zirconium, and hafnium.

Abstract: A component with a substrate and a protective layer is provided. The protective layer consists of an intermediate NiCoCrAlY layer zone on or near the substrate and an outer layer zone arranged on the intermediate NiCoCrAlY layer zone, wherein the outer layer zone has the structure of the phase ?-NiAl and comprises in a weight percentage: 17%-23% Al, 6%-11% Co, and Ni balance.

Abstract: An evaporative cooler for cooling a gas stream, in particular an air stream, including a number of cooling elements located in a flow channel, is provided. A liquid, preferably water, is supplied by a feed device and will be vaporized or evaporated. In one aspect, the surface of at least one of the cooling elements has hydrophilic properties, at least in one sub-region designed to form a liquid film.

Abstract: The invention relates to a component having a substrate and a protective layer, which consists of an intermediate NiCoCrAlY layer zone on or near the substrate and an outer layer zone which is arranged on the intermediate NiCoCrAlY layer zone, which is characterized in that the intermediate NiCoCrAlY layer zone comprises of (in wt %): 11-13% Co, 20-23% Cr, 10.2-11.5% Al, 0.3-0.5 Y, 1.0-2.5% Re and Ni balance.

Abstract: An HS-PVD (high speed physical vapor deposition) or cold spray method for coating a substrate with a bonding agent layer is provided. This method includes generating a particle stream of a coating material, depositing the particle stream on the substrate and subjecting the substrate to a subsequent thermal treatment, wherein powder particles with a larger particle size are added to the particle stream. A device for implementing the method is also provided.