Method for improving corrosion performance of bulk amorphous alloy through oxidizing annealing in air atmosphere

The invention discloses a method for improving the corrosion performance of bulk amorphous alloy through oxidizing annealing in an air atmosphere. The method comprises the following steps: firstly, after polishing the surface of a bulk amorphous alloy, washing the surface of the bulk amorphous alloy with alcohol; secondly, placing the bulk amorphous alloy in a muffle furnace to heat the bulk amorphous alloy to between 286 and 336 DEG C at a speed of 10 DEG C/min; and thirdly, keeping the temperature constant for 5 to 10 hours to form a metallic oxide ceramic layer with high corrosion resistance on the surface of the bulk amorphous alloy. Compared with other common methods for improving the corrosion resistance of the bulk amorphous alloy, the technology has the advantages of greatly improving the corrosion resistance of the bulk amorphous alloy without influencing the glass forming ability of the alloy, along with simplicity, easy implementation and low cost. The process avoids changes in the original dimensi