一种激光选区熔化原位氧化物颗粒强化TC4钛合金及其制备方法
By generating Y2O3 nanoparticles in situ during the SLM process, the problems of insufficient plasticity and corrosion resistance of TC4 titanium alloy were solved, achieving a synergistic improvement in high strength, excellent plasticity and good corrosion resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XINJIANG UNIVERSITY
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-17
AI Technical Summary
The SLM forming process of TC4 titanium alloy has problems such as insufficient plasticity, uneven microstructure and insufficient corrosion resistance. Directly added oxide particles have problems such as insufficient particle dispersion and weak interfacial bonding.
YH2 was used as a precursor to generate Y2O3 nano-oxide particles in situ in the SLM high-temperature molten pool. By controlling the amount of YH2 added and the ball milling conditions through composite powder preparation and laser selective melting process, uniformly distributed Y2O3 particles were formed, and the orientation of α′ martensite laths and grains was regulated to improve the microstructure and properties of the material.
While maintaining high strength, the plasticity and corrosion resistance of TC4 titanium alloy were improved, and the synergistic control of microstructure refinement and texture was achieved, thereby enhancing the overall performance of the material.
Smart Images
Figure CN122406017A_ABST