Preparation method of super-infiltration aluminum alloy surface micro-nano composite structure

• Main Authors: XU JIE, WANG XIAOLIANG, SHAN DEBIN, GUO BIN, LIU YONGDA
• Format: Patent
• Language: Chinese; English
• Published: 03.06.2022
• Subjects: 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention provides a preparation method of a super-infiltration aluminum alloy surface micro-nano composite structure, and relates to the technical field of aluminum alloy materials.The preparation method of the super-infiltration aluminum alloy surface micro-nano composite structure comprises the steps that an aluminum alloy material is put into a mold, and an aluminum alloy plate blank with a micro-structure is formed, the mold comprises a first mold and a second mold, the bottom end of the first mold is provided with a structural body suitable for forming the microstructure, and the second mold is suitable for placing the aluminum alloy material; and preparing a nano-structure on the surface of the microstructure of the aluminum alloy plate blank by using a high-pressure hydrothermal method to obtain the super-infiltration aluminum alloy surface micro-nano composite structure. Compared with the prior art, the micro-nano composite structure obtained by the invention can realize super-infiltration (super