ALUMINUM-BASE MATERIAL Russian patent published in 2006 - IPC C22C21/12 

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminum-base deformable alloys. Aluminum-base material is characterized by structure comprising solid aluminum solution and secondary aluminides wherein the material comprises the following components, wt.-%: copper, 1.2-2.4; manganese, 1.2-2.2; zirconium, 0.15-0.6; vanadium, 0.01-0.15; scandium, 0.01-0.2, and aluminum, the balance. Value of equilibrium solidus of proposed material is above 600°C, hardness by Vickers is 85 HV, not less. In partial variants of the invention proposed material is made as rolled sheets prepared from cast ingots wherein heating temperature of parent ingots is not above 410°C. The material is characterized by the following mechanical properties at room temperature after annealing at 290-410°C for 1-20 h: ultimate tensile resistance strength (σ_B) is 300 MPa, not less; 100 h-strength (σ₁₀₀) at 350°C is above 30 MPa. Invention provides making the material possessing higher strength values at increased temperature that allows decreasing mass of articles made of this material. Invention can be used in manufacturing articles working in broad range of temperature, up to 350°C.

EFFECT: improved and valuable properties of material.

4 cl, 2 dwg, 2 tbl, 3 ex