FIELD: metallurgy.
SUBSTANCE: alloy allows following chemical composition wt %: lithium 1.5-3.0, magnesium 1.7-2.8, beryllium 2.0-5.0, copper 0.3-0.9, zirconium 0.05-0.3, iron 0.01-0.1, nickel 0.01-0.1, silver 0.01-0.3, silicon 0.01-0.1, beryllium oxide 0.1-0.5, aluminium is the rest. Method of receiving of specified alloy on the basis of aluminium, includes melting of charge materials in vacuum induction furnace with feeding of helium, after feeding of helium magnesium and lithium is introduced into melt in the form of alloy Al-Mg and Al-Li. Then melt is heated with simultaneous electromagnetic mixing and it is implemented melt discharge in helium atmosphere into mould, herewith beryllium is introduced into stream of discharged melt in the form of powder with particles size not more than 250 mesh.
EFFECT: increased plasticity of alloy in heat-strengthened condition and thermal conductivity with keeping of high-tensile strength, reinforced and high weight effectiveness of material.
2 cl, 2 tbl, 2 ex
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Authors
Dates
2009-09-27—Published
2006-08-31—Filed