ULTRALIMIT ALLOY AND PREPARATION METHOD THEREFOR

摘要

The present disclosure belongs to the field of preparation technology and provides an ultralimit alloy and a preparation method therefor. The ultralimit alloy comprises an alloy matrix. A bonding layer and a ceramic layer are successively deposited on a surface of the alloy matrix. The alloy matrix includes one of a magnesium alloy matrix, an aluminium alloy matrix, a titanium alloy matrix, an iron alloy matrix, a nickel alloy matrix, a copper alloy matrix, a zirconium alloy, and a tin alloy. For an ultralimit magnesium alloy, an ultralimit aluminium alloy, an ultralimit nickel alloy, an ultralimit titanium alloy, an ultralimit iron alloy and an ultralimit copper alloy, the bonding layer is a composite bonding layer, the ceramic layer is a composite ceramic layer, and the outside of the composite ceramic layer is further successively deposited with a reflecting layer, a catadioptric layer, an insulating layer and a carbon foam layer. For an ultralimit zirconium alloy, the bonding layer is a composite bonding layer, the ceramic layer is a composite ceramic layer, and the outside of the composite ceramic layer is further successively deposited with a seal coating layer, a reflecting layer, a catadioptric layer and an electrically insulating layer. For an ultralimit tin alloy, a surface of a tin alloy matrix is successively deposited with a bonding layer, a ceramic layer, a seal coating layer, a reflecting layer, a catadioptric layer and an insulating layer. By depositing a plurality of coating layers on a surface of an alloy matrix, the service temperature of the alloy matrix can be increased to 100-500°C higher than the melting point of the original alloy matrix, so as to achieve the use of an ultralimit alloy in an ultralimit environment.