Abstract: A component including a metallic substrate and a two layered bondcoat is provided. On the substrate a metallic bond coat especially of the type MCrAlY is preferably applied. The bond coat is a two layered metallic layer. The outer metallic bond coat has compared to the inner metallic coat a reduced amount of aluminum and/or chromium.

Abstract: The corrosion and also the erosion properties of a layer system can be improved by using deposition-hardened particles.

Abstract: Known protective coatings having a high Cr content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective coating is provided. The protective coating includes the composition of 24% to 26% cobalt, 10% to 12% aluminum, 0.2% to 0.5% yttrium, 12% to 14% chromium, and the remainder nickel.

Abstract: Known protective layers with a high Cr content and additionally silicon form brittle phases which additionally embrittle during use under the influence of carbon. A protective layer including the composition of from 24% to 26% cobalt, from 10% to 12% aluminium, from 0.2% to 0.5T yttrium, from 12% to 14% chromium, remainder nickel is provided.

Abstract: An alloy to a protective layer for protecting a component against corrosion and/or oxidation, in particular at high temperatures is proposed. Known protective layers with a high Cr content and in addition silicon form brittle phases which additionally embrittle during use under the influence of carbon. The proposed protective layer has the composition of from 24% to 26% cobalt, from 10% to 12% aluminum, from 0.2% to 0.5% yttrium, from 12% to 14% chromium, from 0.3% to 5.0% tantalum, nickel.

Abstract: A known protective layer has a high Cr content and additionally containing a silicon, forms brittle phases, which become additionally embrittled under the influence of carbon during use. A proposed protective layer has the following composition: 24% to 26% cobalt, 10.5% to 11.5% aluminum, 0.1% to 0.7% yttrium and/or at least one equivalent metal from the group of scandium and the rare earth elements, 12% to 15% chromium, optionally 0.1% to 3% tantalum, optionally 0.05% to 0.5% silicon, with the remainder being nickel.

Abstract: Known protective layers having a high chromium content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective layer including the composition of 18% to 20% cobalt, 6% to 8% aluminum, 0.5% to 0.7% yttrium, 22% to 26% chromium, and the remainder nickel is provided.

Abstract: A layer system is provided. The layer system includes a substrate and a two layered ceramic layer with an inner ceramic layer and an outer ceramic layer. The ductility of the ceramic layer is improved by an inner ceramic layer with a nano structure. The layer system also may include a metallic bond coat.

Abstract: Known protective layers having a high Cr content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective layer that has the composition of 32% to 35% cobalt, 10% to 13% aluminum, 0.1% to 0.3% yttrium, and/or at least one equivalent metal from the group comprising scandium and the rate earth elements, 31% to 35% chromium, 0.1% to 0.5% silicon and the remainder nickel is provided.

Abstract: According to the invention, in order to prevent a film from forming which obstructs the transfer of heat in heat exchanger pipes, the heat exchanger pipe comprises an external side which is adjacent to the external surface and which is impinged upon by a steam medium, and an inner side which is adjacent to an inner surface and which is impinged upon by a coolant, such that the outer surface is provided with a first layer which reduces the adhesion of the steam on the outer surface and/or the inner surface is provided with a second layer which reduces the adhesion of a coolant to the inner surface and which is embodied as a biocidal layer. The invention relates to a heat exchanger and to the use thereof.

Abstract: The invention relates to the use of a thermal insulating layer for a housing of a steam turbine in order to even out the deformation behavior of different components based on different heatings of the components.

Abstract: The invention relates to the use of a thermal insulating layer for a housing of a steam turbine in order to even out the deformation behavior of different components based on different heatings of the components.

Abstract: The invention relates to a component having a coating system, which comprises at least one bonding coat applied directly onto the component and at least one thermal barrier coat formed on the bonding coat, the bonding coat comprising from 22 to 36 wt. % Cr, from 15 to 30 wt. % Ni, at most 55 ppm Al, and Fe as a basis.

Abstract: The aim of the invention is to provide a superheated component of a steam turbine installation with high thermal and mechanical resistance. To this end, the component comprises a lining applied to a body of the component, on a hot side facing a steam chamber, said lining being adapted to the contour of the component body. According to the invention, the lining comprises a number of molded parts, each molded part comprising a metallic and ceramic composite layer formed from at least one metallic layer and at least one ceramic layer. The ceramic layer is used especially as a insulating layer, and the metallic layer is especially used as a support or for protection against abrasion and/or erosion.

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: There are described components of a steam turbine, comprising a thermally insulating layer and a metallic anti-erosion layer on said thermally insulating layer. The anti-erosion layer is provided with the same material as the metallic connecting layer.

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: Bonding agent layers are often used in heat insulation layers in order to improve the bonding of an outer ceramic layer to a metal substrate. A process is provided wherein a MCrAlX or MCrAl alloy is applied to a substrate whereby an outer layer region within the layer is produced using a heat treatment.

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: The invention relates to a component having a coating system, which comprises at least one bonding coat applied directly onto the component and at least one thermal barrier coat formed on the bonding coat, the bonding coat comprising from 22 to 36 wt. % Cr, from 15 to 30 wt. % Ni, at most 55 ppm Al, and Fe as a basis.