Investigation of the Technology of Introducing Li, Mg and Zr Alloys into Aluminum Alloy

This article is devoted to the study of initial phase obtaining alloy 1420, namely, a primary material with desired chemical composition. The effect alloying magnesium, zirconium and lithium on strength properties material. In work, following materials were used obtain cast aluminum Al-Mg-Zr-Li system: technical purity A0 or A5, magnesium Mg95, LE-1, E100, aluminum-zirconium ligature AlZr5, aluminum-lithium AlLi10. Two methods introduce into liquid Al-Mg alloy: introduction pure in form ligature. Al-Mg-Zr lithium. Cast alloys system characteristics obtained: composition: Al-92.245%, Mg-5.00%, Zr-0.105%, Li-2.21%, Si-0.238%, impurities-0.202%. Mechanical properties: Brinell hardness 85 HB, microhardness 139 MPa, compressive 149.6 elastic modulus 12 GPa, yield 175.2 MPa plastic deformation 0.83 GPa.