A platinum plus chromium coating applied to the roots and firtrees of turbine blades where the inclusion of chromium creates a single phase outer zone which minimizes diffusion paths for sulphur which can preferentially diffuse down phase boundaries and enables a chromium rich outer oxide scale to form on top of the coating.

A platinum plus chromium coating applied to the roots and firtrees of turbine blades where the inclusion of chromium creates a single phase outer zone which minimizes diffusion paths for sulphur which can preferentially diffuse down phase boundaries and enables a chromium rich outer oxide scale to form on top of the coating.

The present invention provides a method for manufacturing a curved thin-walled intermetallic compound component by winding a mandrel with metal foil strips, which comprises the following steps: designing a prefabricated blank; preparing a support mandrel; determining thicknesses and layer numbers of foil strips; determining widths of the foil strips; establishing a laying process; pretreating surfaces of the foil strips; laying A foil and B foil; carrying out bulge forming on the prefabricated blank; carrying out diffusion reaction and densification treatment on a bulged component; and carrying out subsequent treatment of a thin-walled component. The present invention can solve the problems that impurities generated in the separation process of a support mould and a laminated foil prefabricated blank influence the final performance of a part, and a single homogeneous intermetallic compound component in thickness direction has poor plasticity and toughness at room temperature.

An Al—Mg—Si aluminum alloy material includes Sn. An oxide film formed on a surface of the aluminum alloy material is analyzed by a semi-quantitative analysis by X-ray photoelectron spectroscopy. A ratio of the number of Sn atoms to the number of Mg atoms in the oxide film is 0.001 to 3 on average. A ratio of the total number of atoms of Sn and Mg to the number of oxygen atoms is 0.001 to 0.2 on average.

The present disclosure is directed to a method for coating a component of a gas turbine engine. The method includes isolating a first portion of the component of the gas turbine engine from a second portion of the component. The method also includes simultaneously depositing a first coating material on the first portion of the component and a second coating material on the second portion of the component, wherein the first and second coating materials are different.

In a process for coating a surface of a substrate with a metal layer zinc is used as a coating agent. Zinc metal and said substrate are brought together at an elevated temperature in a liquid diffusion medium to allow a diffusion of zinc through said diffusion medium to said surface of said substrate. Said diffusion medium comprises a molten salt liquid, particularly molten salt bath, of at least one salt that is maintained at a bath temperature of between 200° C. and 800° C. Said substrate and zinc as a coating agent are heat treated in said bath to promote said diffusion of zinc to said surface of said substrate.

In a process for coating a surface of a substrate with a metal layer zinc is used as a coating agent. Zinc metal and said substrate are brought together at an elevated temperature in a liquid diffusion medium to allow a diffusion of zinc through said diffusion medium to said surface of said substrate. Said diffusion medium comprises a molten salt liquid, particularly molten salt bath, of at least one salt that is maintained at a bath temperature of between 200° C. and 800° C. Said substrate and zinc as a coating agent are heat treated in said bath to promote said diffusion of zinc to said surface of said substrate.

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 surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 μm; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m.sup.2 or more and less than 10.8 g/m.sup.2.

A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 μm; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m.sup.2 or more and less than 10.8 g/m.sup.2.