AlSc

AlSc is an aluminum-scandium alloy that combines aluminum's light weight and workability with scandium's grain-refining and precipitation-strengthening properties, resulting in improved strength and thermal stability compared to conventional aluminum alloys. This material finds primary use in aerospace and high-performance applications where weight reduction and elevated-temperature strength are critical, particularly in aircraft fuselage components, rocket structures, and defense systems. AlSc is notably more expensive than conventional Al-Cu or Al-Zn alloys but offers superior creep resistance and fatigue performance, making it the preferred choice when lifecycle cost and structural reliability outweigh material cost considerations.