Synergizing mechanical properties and damping capacities in a lightweight Al-Zn-Li-Mg-Cu alloy

Alloys with synergized strength and damping capacity are in urgent need to eliminate vibrations and noises. Herein, a lightweight Al-Zn-Li-Mg-Cu alloy which exhibits similar strengths as traditional high-strength Al alloys and considerable damping capacities is developed. The resulting microstructures and precipitation behaviors are systematically characterized in the hot-rolled and cold-rolled alloy. Meanwhile, damping properties at low...