| 摘要 |
FIELD: metallurgy.SUBSTANCE: alloying bar contains the following, wt %: scandium 0.8-1.5, zirconium 0.8-1.5; at least one of the following elements: manganese up to 0.10, chrome up to 0.10, titanium up to 0.10, molybdenum up to 0.10, iron up to 0.30, silicon up to 0.20, and aluminium is the rest.EFFECT: alloying bar Al-Sc-Zr provides ingots obtained from aluminium alloys with maximum crushed grain structure, which allows maximum possible reduction of tendency to hot cracks during ingot casting process from aluminium alloys and to cold cracks after casting is completed; with that, technological ductility of ingots increases at their pressure treatment and a complex of service properties of semi-finished products, for example channels, forgings, sheets, formings, plates obtained from ingots with non-dendrite structure, is enhanced.1 ex, 6 tbl |
