一种高强度高阻尼铸造铝合金及制备方法
By adding Sn and Mg, along with Ni, Ti, and B, to Al-Si cast aluminum alloys to form a fine and dispersed distribution, the problems of high density and reduced strength in high-damping Zn-Al alloys were solved, enabling the preparation of high-strength and high-damping aluminum alloys and improving the overall performance of aluminum alloys.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2023-05-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-damping Zn-Al alloys have high density, which limits their application in lightweight and low-cost applications. At the same time, the addition of Sn may reduce the strength of aluminum alloys, making it difficult to improve damping performance without affecting strength.
Adding Sn and Mg to Al-Si cast aluminum alloys allows Sn to form a fine, dispersed distribution in the aluminum alloy matrix. By adding appropriate amounts of Ni, Ti, and B, and rationally selecting the types and contents of these elements, the damping performance and strength of the aluminum alloy can be improved.
It achieves simultaneous improvement in the strength and damping performance of aluminum alloys without affecting casting flow properties, increasing tensile strength by 6-62% and damping loss factor by 45-73%, and does not contain rare or precious metals, requiring no changes to existing equipment.
Smart Images
Figure CN116716500B_ABST