Aluminum alloy electron beam vacuum evaporation composite surface strengthening method

• Main Authors: XIAN RUIHUA, WEI DEQIANG, LI XINKAI
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2023
• 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 discloses an aluminum alloy electron beam vacuum evaporation composite surface strengthening method which specifically comprises the following steps: step 1, pretreatment: milling and polishing the surface of an aluminum alloy test block workpiece, and then cleaning the processed workpiece and an evaporation target material by using a cleaning agent; and 2, electron beam vacuum evaporation treatment is carried out, and the evaporation target material is heated through an electron beam to be evaporated. And (3) electron beam treatment: continuously treating the surface of the aluminum alloy coating by using an electron beam. And 4, structure and performance testing: observing the internal structure by using a scanning electron microscope, detecting the corrosion resistance of the structure by using an electrochemical workstation, and measuring the hardness by using a microhardness meter. The method disclosed by the invention not only can improve the corrosion resistance of the aluminum alloy surf