一种中熵钛铝合金材料及其制备方法
By preparing a medium-entropy titanium-aluminum alloy material, the room temperature brittleness and welding problems of γ-TiAl alloy were solved, achieving high strength and high plasticity welding effects. It is suitable for vacuum brazing of dissimilar materials and has the characteristics of environmental protection and high efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AVIC BEIJING INST OF AERONAUTICAL MATERIALS
- Filing Date
- 2024-02-02
- Publication Date
- 2026-07-17
AI Technical Summary
γ-TiAl alloys suffer from low brittleness at room temperature and are difficult to weld, especially when welding dissimilar materials, which can easily lead to hot cracking and brittle compounds, thus limiting the applicability of welding methods.
A method for preparing medium-entropy titanium-aluminum alloy material was adopted. By laying foil strip material and zirconium powder in a limiting tooling to form a composite layer, and performing heat treatment in a vacuum environment, a BCC-type solid solution structure was formed by using isostatic pressure and the melting and filling of zirconium powder, which solved the problems of weldability and plasticity of the material.
The prepared medium-entropy titanium-aluminum alloy material has high strength and good plasticity at room temperature, high weld joint strength, and the process is simple, environmentally friendly, efficient, and low-cost, making it suitable for vacuum brazing.
Smart Images
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