一种高强度高延性细晶钽材及其制备方法
By combining multiple multi-directional forging and unidirectional rolling, high-strength, high-ductility fine-grained tantalum materials are prepared, solving the problems of easy cracking and low yield of tantalum materials in the existing technology, and realizing the low-cost preparation of high-performance tantalum materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANCHANG UNIV
- Filing Date
- 2023-12-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to prepare fine-grained tantalum materials that combine high strength and high elongation, resulting in easy cracking and low yield during deep drawing, as well as complex equipment processes and high costs.
Using electron beam melting of tantalum ingots as raw material, a large strain is accumulated through a combination of multiple multi-directional forging and multiple unidirectional rolling at room temperature, combined with intermediate annealing treatment, to prepare high-strength, high-ductility, fine-grained tantalum material.
Tantalum material with an average grain size ≤20μm was obtained, with tensile strength and yield strength >300MPa at room temperature and elongation after fracture >30%. The equipment is simple and low in cost, and is suitable for tantalum materials with excellent deep drawing performance.
Smart Images
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Figure HDA0004620864060000012