Multi-anode electrolysis preparation method and application of titanium-aluminum-vanadium alloy powder

Abstract

The invention discloses a multi-anode electrolysis preparation method and application of titanium-aluminum-vanadium alloy powder, and belongs to the field of powder synthesis. The preparation method comprises the following steps: preparing an anode: taking two or more than two metals or intermetallic compounds or alloys consisting of at least one element of titanium, aluminum and vanadium as the anode; constructing an electrolytic tank: placing two or more than two anodes and the same cathode in the same molten halide electrolyte dissolved with titanium, aluminum and vanadium element halides, so as to construct the electrolytic tank with a plurality of different anodes; and electrolysis: carrying out an electrolytic reaction in the electrolytic tank to obtain titanium-aluminum-vanadium alloy powder with controllable components at a cathode. According to the method, the high-temperature and high-energy-consumption process in a traditional alloy powder preparation process is avoided, and synthesis of the titanium-aluminum-vanadium alloy powder with controllable components and uniform element distribution is achieved through the electrolysis process. The obtained alloy powder not only can be used for powder metallurgy, but also can be used as a synthetic raw material of spherical powder for alloy profiles and 3D printing.

Description

technical field [0001] The invention relates to the technical field of powder synthesis, in particular to a multi-anode electrolytic preparation method and application of titanium-aluminum-vanadium alloy powder. Background technique [0002] Due to its high specific strength, good corrosion resistance, high heat resistance, and a series of excellent properties such as biocompatibility, titanium alloys are widely used in aerospace, petroleum, chemical and other industrial fields, as well as sporting goods, jewelry, medical treatment, etc. civilian field. Common alloying elements in titanium alloys include aluminum (Al), vanadium (V), nickel (Ni), etc., among which aluminum and vanadium are the main alloying elements of titanium alloys. Thanks to solid solution strengthening, they can improve the strength of the alloy. , reducing the specific gravity and increasing the modulus of elasticity all have significant effects. Therefore, common titanium alloys (TA series, TC series...

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Problems solved by technology

Vacuum smelting uses titanium alloy with qualified composition as raw material, and adopts gas atomization, rotating electrode, centrifugal atomization or liquid droplet to realize the preparation of powder. Such methods consume relatively high energy consumption and cost, and are more commonly used in special The manufacture of powder (such as spherical powder); elemental powder sintering is based on the precise ratio of metal powder as raw material, through the solid phase reaction below the melting temperature to achieve alloying, although the hot isostatic pressing process developed in recent years It effectively solves the influence of the Kirkendall effect on the density in the solid-state reaction, but the process cost is still high; the mechanical alloying adopts the method of high-energy ball milling, and realizes the chemical Preparation of alloy powder with complex and uniform composition and fine microstructure. This method can make the uniformity and refinement of the material structure close to the limit, but there are problems such as cumbersome process control and potential impurity contamination (process control agent)

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