HIGH-STRENGTH FOUNDRY ALUMINUM ALLOY WITH CALCIUM ADDITIVE Russian patent published in 2019 - IPC C22C21/10 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy of aluminum-based materials and can be used in production of articles operating under high loads at temperatures of up to 150–200 °C, in particular, parts of aircrafts, cars and other vehicles. Foundry alloy based on aluminum contains, wt%: 5–6 Zn, 0.6–1.4 Ca, 1.2–1.8 Mg, 0.4–0.7 Fe, aluminum – the rest, wherein after casting alloy has: temporary resistance (σ_t) is not less than 320 MPa, yield point (σ_0.2) is not less than 210 MPa, relative elongation (δ) is not less than 5 %.

EFFECT: creation of a new foundry high-strength aluminum alloy intended for production of shaped castings.

1 cl, 4 dwg, 2 tbl, 2 ex