ALUMINIUM ALLOYS

摘要

IMPROVEMENTS IN OR RELATING TO ALUMINIUM ALLOYS Aluminium alloys having compositions within the ranges (in wt%). 2 to 3 lithium - 0 to 4 magnesium - 0.4 to 5 zinc - 0 to 2 copper 0 to 0.2 zirconium - 0 to 0.5 manganese - 0 to 0.5 nickel - 0 to 0.4 chromium - balance aluminium are described. The alloys are precipitation hardenable and exhibit a range of properties, according to heat treatment, which made them suitable for engineering applications where light weight and high strength are necessary.