A sliding component having a wear-resistant coating includes a sliding component formed of a Ni alloy, and a wear-resistant coating provided on a sliding surface of the sliding component. The wear-resistant coating has, at least on the surface side thereof, an Al-containing Co alloy layer which contains Co as a main component, at least one of W, Ni, Mo, Fe, Si, and C, Cr, and 0.3% by mass or more and 26% by mass or less of Al.

A calcium-magnesium-alumino-silicate (CMAS)-reactive thermal barrier coating includes a ceramic coating and a CMAS-reactive overlay coating, wherein the CMAS-reactive overlay coating conforms to a surface of the ceramic coating and comprises a compound that forms a stable high melting point crystalline precipitate when reacted with molten CMAS at a rate that is competitive with CMAS infiltration kinetics into the thermal barrier coating. The ceramic coating phase is stable with the CMAS-reactive overlay coating.

A coated titanium material includes a titanium material and a coating film formed on a surface of the titanium material. A Ti-based oxide is included in an interface between the titanium material and the coating film. The Ti-based oxide is one or both rutile type TiO.sub.2 and Ti.sub.2O.sub.3. In a case where a cut surface of the coating film is formed by using a SAICAS method under conditions that a horizontal speed is 2 m/s and a vertical speed is 0.1 m/s, on the cut surface, an area percentage of the Ti-based oxide is 30.0% or more in a region having a distance of 15 m from a reference line specified on the basis of a boundary line, which is an intersection line between the cut surface and the interface, to a coating film side.

The invention relates to a flat steel product, which is intended to be formed into a component by hot press forming and has a base made of steel, onto which a metal anti-corrosion coating is applied, which is formed by Zn or a Zn alloy. This is achieved as per the invention in that a separate finishing coat is applied to at least one of the free surfaces of the flat steel product which contains at least one base metal compound (oxide, nitride, sulphide, sulphate, carbide, carbonate, fluoride, hydrate, hydroxide, or phosphate). Furthermore the invention relates to a method enabling the production of a flat steel product of this kind.

A flat steel product which is provided for forming into a component by hot pressing and which has a base layer of steel on which is applied a Zn or Zn alloy metallic protective coating for protecting against corrosion. On at least one of the free surfaces of the flat steel product, a separate cover layer is applied which contains an oxide, nitride, sulphide, carbide, hydrate or phosphate compound of a base metal. In addition, a method which allows the production of such a flat steel product, and a method which allows the production of a component from such a flat steel product.

There is provided a seamless steel pipe for line pipe, wherein a chemical composition consists, by mass percent, of C: 0.03-0.10%, Si: 0.50%, Mn: 1.0-2.0%, P: 0.050%, S: 0.005%, Cr: 0.05-1.0%, Mo: 0.01-0.30%, Al: 0.001-0.10%, N: 0.01%, Ni: 0.04-2.0%, Ca: 0.0005-0.0050%, Cu: 0-2.0%, Ti: 0-0.05%, Nb: 0-0.05%, V: 0-0.10%, the balance: Fe and impurities, and satisfies the conditions of Cu+Ni: 0.10%, and Mo+V: 0.30%, wherein in a scale formed on the surface of the steel pipe, metal particles consisting mainly of Ni or Cu having an average circle-equivalent diameter of 0.1-5 m exist, and a distance from a boundary between the base metal of the steel pipe and the scale to a region in which the metal particles do not exist is 20 m or longer.

Substrate provided with a plurality of layers, at least one of which includes metal oxides and is topped directly by a metal coating layer that contains at least 8% by weight nickel and at least 10% by weight chromium, the remainder being iron, additional elements and the impurities resulting from the fabrication process, wherein this metal coating layer is topped directly by an anticorrosion coating layer. A corresponding fabrication method is also provided.

A method for producing a hot-pressed member includes heating a coated steel sheet, which includes, on a surface thereof, a ZnNi alloy coating layer containing 10% by mass or more and less than 13% by mass of Ni at a coating weight of over 50 g/m.sup.2 per side of the steel sheet, in a temperature region of an Ac.sub.3 transformation point to 1200 C. at an average heating rate of 12 C./second or more, and then hot-pressing the steel sheet.

A method of forming a dense oxide coating on an aluminum component of semiconductor processing equipment comprises cold spraying a layer of pure aluminum on a surface of the aluminum component to a predetermined thickness. A dense oxide coating is then formed on the layer of pure aluminum using a plasma electrolytic oxidation process, wherein the plasma electrolytic oxidation process causes the layer of pure aluminum to undergo microplasmic discharges, thus forming the dense oxide coating on the layer of pure aluminum on the surface of the aluminum component.

Provided herein is a hydrogen permeation barrier coating, a coated substrate, and methods of coating a substrate.