High-strength multifunctional multilevel structure coating and preparation method

• Main Authors: GONG LIUKUI, CUI HONGZHI, MO CUIDI, MA GUOLIANG, LIU FEIYA, JIANG BOYU, HUANG WEI
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CONDUCTORS; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INSULATORS; METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

According to the high-strength multifunctional multilevel structure coating and the preparation method, an infrared laser and plasma synchronous composite high-efficiency cladding method is adopted, a micron-sized columnar crystal structure perpendicular to a base body is obtained and serves as a pure heat-conducting and electricity-conducting channel, and submicron and nanoscale ceramic reinforced phases are formed among columnar crystals and distributed along the crystal boundary; according to the multi-stage organization structure, the hardness, the abrasion resistance and the electric and thermal conductivity of the copper alloy cladding layer are synchronously improved, and the damage protection reliability of a copper alloy part applied to an extreme environment is improved. The method is suitable for damage protection of copper alloy applied to lead frames, high-speed rail contact lines, rocket engine combustion chambers, nuclear fusion devices, electromagnetic guns and other extreme environments. 本发明公