POWDERED ALUMINUM MATERIAL Russian patent published in 2020 - IPC C22C1/04 B22F1/00 C22C21/00 

FIELD: metallurgy.

SUBSTANCE: group of inventions includes heat-resistant aluminum alloy, powdered aluminum material and article made thereof using additive technology. Heat-resistant aluminum alloy contains, wt %: Silicon 7.0–8.85, copper 1.0–3.0, magnesium 0.5–2.0, iron 0.5–2.0, nickel 1.0–2.5, manganese 0.45–1.3, chromium 0.1–0.45, vanadium 0.1–0.45, zirconium, and/or hafnium, and/or titanium 0.1–0.5, aluminum and unavoidable impurities—the rest. Content of manganese, chromium and vanadium is selected considering their maximum solubility in aluminum to prevent formation of excessive primary intermetallides. Total content of alloying elements, with the exception of silicon, copper and magnesium, does not exceed 5 wt %. Article made from aluminum alloy based powder material using additive technologies, contains silicon phase in size of not more than 6 mcm and has ultimate strength of not less than 320 MPa.

EFFECT: enabling high technological effectiveness when printing using additive technologies and high strength characteristics.

5 cl, 6 dwg, 6 tbl, 3 ex