高强度铌合金的加工方法
By employing a process of powder mixing, ingot casting, extrusion, and multiple annealing of niobium alloys, the strength and plasticity of niobium alloys were improved, solving the problem of insufficient strength in niobium alloys and enabling the preparation of high-strength niobium alloys.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGXIA ORIENT TANTALUM INDUSTRY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
The strength level of existing niobium alloys is stagnant in the medium strength range, with low room temperature tensile strength, which makes fasteners prone to deformation when the preload is increased, and the elongation is also low.
High-strength niobium alloys are prepared by casting ingots of niobium, tungsten, tantalum, molybdenum, zirconium, and carbon mixed powders. The alloys are heated in a medium-frequency induction furnace and extruded, combined with two intermediate annealing processes and a finished product annealing process to optimize the processing and improve strength.
It improves the room temperature and high temperature tensile strength of niobium alloys, reduces the risk of deformation of fasteners when the preload is increased, and enhances the overall strength and plasticity of the alloy.
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Figure CN120619227B_ABST