Method for enhancing corrosion resistance of magnesium alloy material

The invention belongs to the field of metal material processing, and particularly relates to a method for enhancing the corrosion resistance of a magnesium alloy material. The method comprises the following steps: S1, material pretreatment: carrying out surface pretreatment and cleaning treatment on...

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Bibliographische Detailangaben
Hauptverfasser:	WU SIZHU, HUANG JIUHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FERROUS OR NON-FERROUS ALLOYS GRINDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PERFORMING OPERATIONS POLISHING SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention belongs to the field of metal material processing, and particularly relates to a method for enhancing the corrosion resistance of a magnesium alloy material. The method comprises the following steps: S1, material pretreatment: carrying out surface pretreatment and cleaning treatment on a magnesium alloy material to form a mirror surface on the surface of the magnesium alloy material; s2, preparing a surface microstructure through femtosecond laser, wherein a femtosecond laser processing system with the laser wavelength being 800 nm, the pulse width being 104 fs and the frequency being 1 kHz is selected; processing parameters are set according to the material size and a preset processing scheme, different scanning strategies are adopted, and a microstructure composed of periodic grooves and ridges is prepared on the surface of the magnesium alloy material with the laser power not lower than 100 mW; and S3, heat treatment surface modification is conducted, specifically, the magnesium alloy materia