一种原位自生颗粒增强的耐热铝稀土合金及其制备方法
By adding TiB2 particles and other elements to aluminum-cerium alloys and combining them with selective laser melting additive manufacturing technology, multi-component strengthening phases and fine microstructures are formed, solving the problems of uneven grain structure and insufficient plasticity of Al-Ce alloys during SLM forming, and improving the strength and ductility of the alloys at high temperatures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
The existing Al-Ce alloys require further refinement of grain structure during selective laser melting forming, resulting in insufficient uniformity, low plasticity, and inadequate room temperature strength and elongation.
By adding TiB2 particles and elements such as Mg, Zr, Zn, Cu, Si, and Sc to aluminum-cerium alloys, a multi-component strengthening phase is formed. Selective laser melting additive manufacturing technology is used to generate TiB2 particles in situ, which refines the grains and forms an Al11Ce3 eutectic structure and an Al13CeMg6 ternary phase, thereby improving the mechanical properties of the alloy.
It significantly improves the mechanical properties and ductility of aluminum rare earth alloys at room temperature, and maintains good tensile strength and excellent elongation in hot exposure environments.
Smart Images
Figure CN122105199B_ABST