Method for preparing zirconium-based amorphous alloy

Abstract

The invention provides an amorphous alloy preparation method. The method comprises the following steps of: a, derusting, degreasing and cleaning a zirconium-based amorphous alloy cast ingot to obtain a processed zirconium-based amorphous alloy; b, after crushing the processed zirconium-based amorphous alloy, adding a deoxidizing agent for mixing, and performing vacuum melting, wherein the meltingtemperature is 250 to 350 DEG C over the melting point temperature of the zirconium-based amorphous alloy, and the melting time is 5 to 20 minutes; c, cooling a molten mixture to the temperature of 200 to 300 DEG C over the melting point of the zirconium-based amorphous alloy, standing and keeping the temperature to obtain a molten mixture; and d, introducing argon in the process of standing and keeping the temperature of the molten mixture, wherein the argon introducing time is 5 to 30 minutes and the flow rate is 2 to 10 L / min; and after finishing introducing the argon, injecting the moltenmixture into a copper mould through a filter plate, and cooling the molten mixture to room temperature at the cooling rate of 10 to 1,000 DEG C / s under the condition of protective atmosphere. The zirconium-based amorphous alloy prepared by the method has the advantages of low oxygen content and high amorphous forming capacity.

Description

Technical field [0001] The invention relates to a method for preparing a zirconium-based amorphous alloy. Background technique [0002] Amorphous metal materials have excellent properties due to their special structure-long-range disorder and short-range orderly: high strength and hardness, wear resistance, corrosion resistance, large elastic limit and high electrical resistance. It also exhibits excellent superconductivity and low magnetic loss. Therefore, amorphous metal materials are recognized as the most promising new structural materials and are widely used in many fields such as machinery, IT electronics, and military industries. The appearance of bulk amorphous materials has greatly promoted the research and application of amorphous materials. At present, there are relatively few component systems in the known amorphous systems that have both good amorphous forming ability and superior mechanical properties. As one of these more balanced systems, zirconium-based amorphou...

AI Technical Summary

Problems solved by technology

[0004] At present, the methods of reducing the oxygen content in amorphous alloys mainly include the use of high-purity raw materials to prepare amorphous alloys, and the use of high-purity raw materials reduces the oxygen content of amorphous alloys, but at the same time increases the production cost of amorphous alloys , which limits the scope of use of amorphous alloys

Another method is to use a common molten steel deoxidizer, but the metal substances contained in the molten steel deoxidizer will cause severe segregation of the amorphous alloy, and a large amount of crystallization in the amorphous alloy will form a zirconium-based amorphous ability to adversely affect