The present invention relates to a component of a turbomachine with a repair layer and a method for repairing wear-damaged components (1, 10) of a turbomachine, in particular of elements of a flow duct boundary, having the following method steps: preparing the area to be repaired, in order to provide a smooth and clean surface (4), applying an Ni-based braze (7) with a proportion of hard material particles (8) to the surface (4) to form a repair layer (15), wherein the hard material particles comprise hard alloys based on cobalt or nickel, heat treating the component to braze the repair layer onto the component under vacuum conditions.

A steel sheet for a container includes: a steel sheet; a coated layer containing Ni provided as an upper layer of the steel sheet; and a chemical treatment layer as an upper layer of the coated layer, and containing a Zr compound in an amount of 3.0 to 30.0 mg/m.sup.2 in terms of Zr metal, and a Mg compound in an amount of 0.50 to 5.00 mg/m.sup.2 in terms of Mg metal, in which the coated layer is one of: a Ni coated layer which contains Ni in amount of 10 to 1000 mg/m.sup.2 in terms of Ni metal, and a composite coated layer which contains Ni in an amount of 5 to 150 mg/m.sup.2 in terms of Ni metal and Sn in an amount of 300 to 3000 mg/m.sup.2 in terms of Sn metal, and has an island-shaped Sn coated layer formed on an FeNiSn alloy layer.

A steel sheet for a container includes: a steel sheet; a coated layer containing Ni provided as an upper layer of the steel sheet; and a chemical treatment layer as an upper layer of the coated layer, and containing a Zr compound in an amount of 3.0 to 30.0 mg/m.sup.2 in terms of Zr metal, and a Mg compound in an amount of 0.50 to 5.00 mg/m.sup.2 in terms of Mg metal, in which the coated layer is one of: a Ni coated layer which contains Ni in amount of 10 to 1000 mg/m.sup.2 in terms of Ni metal, and a composite coated layer which contains Ni in an amount of 5 to 150 mg/m.sup.2 in terms of Ni metal and Sn in an amount of 300 to 3000 mg/m.sup.2 in terms of Sn metal, and has an island-shaped Sn coated layer formed on an FeNiSn alloy layer.

A steel sheet for a container includes a steel sheet, a Sn coated layer which is provided as an upper layer of the steel sheet and contains Sn in an amount of 560 to 5600 mg/m.sup.2 in terms of Sn metal, and a chemical treatment layer which is provided as an upper layer of the Sn coated layer and contains a Zr compound in an amount of 3.0 to 30.0 mg/m.sup.2 in terms of Zr metal and a Mg compound in an amount of 0.50 to 5.00 mg/m.sup.2 in terms of Mg metal.

A steel sheet for a container includes a steel sheet, a Sn coated layer which is provided as an upper layer of the steel sheet and contains Sn in an amount of 560 to 5600 mg/m.sup.2 in terms of Sn metal, and a chemical treatment layer which is provided as an upper layer of the Sn coated layer and contains a Zr compound in an amount of 3.0 to 30.0 mg/m.sup.2 in terms of Zr metal and a Mg compound in an amount of 0.50 to 5.00 mg/m.sup.2 in terms of Mg metal.

A method for producing round stock (10) which is provided with at least one inscription and/or marking (16), at least the surface (12) of the round stock (10) consisting of a metallic material, in particular of chromium or steel, for example of hardened steel, chromium-plated steel or stainless steel. In order to improve this method such that disadvantages and shortcomings are avoided, the method includes the following steps: placing on the surface (12) at least one cover (20) which is adapted to the shape of the surface (12) and in particular has the inscription and/or marking (16), such that the region to be provided with the inscription and/or marking (16) is not covered by the cover (20),exposing the round stock (10) to a first electrolyte (30) together with the cover (20), material being removed from the surface (12) by said electrolyte in the region to be provided with the inscription and/or the marking (16) while producing depressions (14), andexposing the round stock (10) together with the cover (20) and the depressions (14) not covered by the cover (20) to a second electrolyte (32) by which the depressions (14) are filled to produce the inscription and/or marking (16) which differs from the surface (12) optically, in particular with respect to color. The present invention also relates to round stock (10) which is manufactured from a metallic material, with the round stock being provided with a correspondingly produced inscription and/or marking (16).

A method for producing round stock (10) which is provided with at least one inscription and/or marking (16), at least the surface (12) of the round stock (10) consisting of a metallic material, in particular of chromium or steel, for example of hardened steel, chromium-plated steel or stainless steel. In order to improve this method such that disadvantages and shortcomings are avoided, the method includes the following steps: placing on the surface (12) at least one cover (20) which is adapted to the shape of the surface (12) and in particular has the inscription and/or marking (16), such that the region to be provided with the inscription and/or marking (16) is not covered by the cover (20),exposing the round stock (10) to a first electrolyte (30) together with the cover (20), material being removed from the surface (12) by said electrolyte in the region to be provided with the inscription and/or the marking (16) while producing depressions (14), andexposing the round stock (10) together with the cover (20) and the depressions (14) not covered by the cover (20) to a second electrolyte (32) by which the depressions (14) are filled to produce the inscription and/or marking (16) which differs from the surface (12) optically, in particular with respect to color. The present invention also relates to round stock (10) which is manufactured from a metallic material, with the round stock being provided with a correspondingly produced inscription and/or marking (16).

Disclosed herein is a catalytic assembly comprising a porous electrically conductive substrate, and a porous metallic composite coating the substrate, where the catalytic assembly has a three dimensional interpenetrating porous structure, where the substrate has a three dimensional interpenetrating porous structure having a first average pore diameter (PD.sub.SUB), and the porous metallic composite is amorphous and has a three dimensional interpenetrating porous structure having a second average pore diameter (PD.sub.PMC), the PD.sub.PMC being sufficiently smaller than the PD.sub.SUB to allow the porous metallic composite to coat substrate surfaces throughout the substrate including surfaces of pores in the substrate. The catalytic assembly may be suitable for use as oxygen evolution reaction (OER) catalysts and hydrogen evolution reaction (HER) catalysts, among others.

Disclosed herein is a catalytic assembly comprising a porous electrically conductive substrate, and a porous metallic composite coating the substrate, where the catalytic assembly has a three dimensional interpenetrating porous structure, where the substrate has a three dimensional interpenetrating porous structure having a first average pore diameter (PD.sub.SUB), and the porous metallic composite is amorphous and has a three dimensional interpenetrating porous structure having a second average pore diameter (PD.sub.PMC), the PD.sub.PMC being sufficiently smaller than the PD.sub.SUB to allow the porous metallic composite to coat substrate surfaces throughout the substrate including surfaces of pores in the substrate. The catalytic assembly may be suitable for use as oxygen evolution reaction (OER) catalysts and hydrogen evolution reaction (HER) catalysts, among others.

Systems and methods using engineered nanofiltration layers to facilitate acceleration of palladium nanowire hydrogen sensors. The sensors include a metal-organic framework (MOF) assembled on palladium (Pd) nanowires (NWs) for highly selective and ultra-fast H2 molecule detection.