is taken to be smelted and composition of the alloy is listed in table 1 the alloy in a molten state is poured on a rotating cooling roller with a water cooling device to be cooled and form an alloy slice the alloy slice leaves the rotating cooling roller made of copper and falls on a turntable the alloy slice is cooled again with an inert gas cooling device with a heat exchanger and a mechanical stirring device the alloy slice cooled again is fed into a hanging charging basket and the charging basket carrying the alloy slice is transported to a hydrogen adsorption chamber a heating dehydrogenation chamber and a gas cooling chamber of a continuous vacuum hydrogen pulverization furnace in turn by a suspended drive in such a manner that the alloy is processed with hydrogen adsorption heating and dehydrogenation and cooling in turn the alloy slice hydrogen pulverized and micro powder of oxide listed in table 2 are added into a two dimensional mixing machine to mix with each other an average particle size of the micro powder is 60 nm and a weight ratio of the micro powder is 0 12 a mixing period is 40 minutes after mixing milling process is processed with a jet mill an.