Preparation method of titanium-zirconium-niobium-tantalum-vanadium high-entropy alloy

By employing vacuum suspension melting technology and multiple melting processes, the uniformity and strength issues of titanium-zirconium-niobium-tantalum-vanadium high-entropy alloys have been resolved, enabling the industrial production of high-performance alloys.

CN122406069APending Publication Date: 2026-07-17NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Filing Date
2026-03-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for preparing high-entropy titanium-zirconium-niobium-tantalum-vanadium alloys suffer from poor alloy uniformity, reduced performance, and the resulting powder metallurgy products exhibit porosity and low strength.

Method used

Vacuum suspension melting technology is adopted, high-purity raw materials are added in batches and heating power is controlled. The alloy uniformity is ensured through multiple melting processes. High-purity argon gas is used for protection, and the ingot is repeatedly turned over to improve the material strength.

Benefits of technology

A titanium-zirconium-niobium-tantalum-vanadium high-entropy alloy with uniform microstructure, low impurity elements, and high strength was prepared, which is suitable for industrial-scale production and has controllable cost.

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Abstract

本发明公开了一种钛锆铌钽钒高熵合金的制备工艺,包括利用氩气保护下的真空悬浮熔炼炉,在不同加热功率下按批次熔炼高纯度的原材料;经过抽真空、精炼、水冷、翻转铸锭反复熔炼后,得到最终的钛锆铌钽钒高熵合金铸锭。本发明制备的钛锆铌钽钒高熵合金均匀性好,纯净度高,晶粒细化,且力学性能优异等优点,且本发明工艺流程简单,适合工业化生产。
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