A refining method for yttrium-containing zirconium-based amorphous alloy material

Abstract

The invention discloses a method for refining a yttrium-containing zirconium-based amorphous alloy material, which includes the following specific steps: (1) calculating and weighing various raw materials according to the target composition ratio of the yttrium-containing zirconium-based amorphous alloy material; 2) Sinter the alumina-silicon spinel crucible coated with yttrium oxide at 700-800°C for 4-8 hours; (3) add various raw materials to the cleaned above-mentioned crucible in turn; (4) first vacuum induction Vacuumize the melting furnace so that the vacuum degree in the furnace reaches 0.01-0.05Pa, then fill the furnace with argon gas with a volume percentage purity of 99.99% to 0.01-0.03MPa, and then power the vacuum induction melting furnace; (5) First, heat the vacuum induction melting furnace until the temperature of the furnace charge is 1000°C to 1200°C, and then refine the raw materials. The refining power is 90‑120Kw, and the refining time is 2 to 20 minutes; (6) After refining, the obtained yttrium-containing zirconium The base amorphous alloy material is charged and casted. The method improves the product quality of the yttrium-containing zirconium-based amorphous alloy material and reduces the production cost.

Description

technical field [0001] The invention relates to a refining method of an yttrium-containing zirconium-based amorphous alloy material, belonging to the technical field of amorphous alloys. Background technique [0002] At present, the formation enthalpy of rare earth Y oxide is about 1903.6kJ / mol, and the formation enthalpy of Zr oxide is about 1102.3kJ / mol. Y is more likely to combine with oxygen than Zr, so rare earth Y can effectively absorb And eliminate the oxygen in the master alloy matrix during the experiment, and finally remove the oxygen in the metal melt, but the formed yttrium oxide scum is easily involved in the master alloy matrix, forming inclusion particles in the amorphous sample, and then affecting the sample. shape and performance. [0003] Moreover, the melting furnace used in the experiment is a vacuum induction melting furnace, mainly because of its simple selection of furnace materials, no need for prefabricated electrodes, high production efficiency, s...

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Problems solved by technology

[0002] At present, the formation enthalpy of rare earth Y oxides is about 1903.6kJ / mol, and the formation enthalpy of Zr oxides is about 1102.3kJ / mol. Y is easier to combine with oxygen than Zr, so rare earth Y can effectively absorb And eliminate the oxygen in the master alloy matrix during the experiment, and finally remove the oxygen in the metal melt, but the formed yttrium oxide scum is easily involved in the master alloy matrix, forming inclusion particles in the amorphous sample, and then affecting the sample. shape and performance

[0003] Moreover, the melting furnace used in the experiment is a vacuum induction melting furnace, mainly because of its simple selection of furnace materials, no need for prefabricated electrodes, high production efficiency, simple operation, strong electromagnetic stirring force, and good composition consistency. However, vacuum induction melting furnaces also have The following congenital defects: the slag in the furnace is mixed with the molten pool, and the oxide crucible will inevitably react with the metal, especially active metals such as zirconium and titanium that are widely used in amorphous alloys, and the induction melting furnace basically does not have desulfurization and dephosphorization, etc. effect

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