一种高氮钛粉和高性能钛制件及其制备方法
By generating a nitride film on the surface of titanium alloy powder through planetary ball milling and powder blank hot deformation technology, the problem of uniform distribution of high-nitrogen titanium powder was solved, and high-performance titanium alloy parts were prepared, which significantly improved their mechanical properties and reduced production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2022-11-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing heat treatment nitriding methods consume a lot of energy, resulting in high production costs for high-performance titanium alloy parts. Furthermore, conventional methods cannot achieve a uniform distribution of high nitrogen content, which affects the mechanical properties of titanium alloys.
A nitride film is generated on the surface of titanium alloy powder by planetary ball milling. High-nitrogen titanium powder is prepared by controlling the ball milling process parameters and nitrogen pressure through powder blank hot deformation technology. High-performance titanium alloy parts are then prepared by cold isostatic pressing and high-temperature hot extrusion.
Uniform nitriding of high-nitrogen titanium powder was achieved, resulting in titanium alloy parts with fine grains and equiaxed α microstructure with dispersed β phase. This significantly improved their room temperature mechanical properties and reduced production costs.
Smart Images
Figure CN116441533B_ABST