FIELD: metallurgy.
SUBSTANCE: invention may be used for making critical parts operated at high loads at 100-150°C, e.g, those of aircraft, cars and trucks, etc. Aluminium-based alloy comprises 7-12% of Zn, 2-5% of Ca, 2.2-3.8% of Mg, 0.02-0.25% of Zr. Note here that its hardness makes at least 150 HV, σB>450 MPa. σ0.2>400 MPa.
EFFECT: new high-strength alloy for thermal hardening, making shaped castings.
4 tbl, 3 ex, 2 dwg
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Authors
Dates
2013-03-27—Published
2012-01-23—Filed