Aluminum based alloy with lithium components and process for its heat treatment.

摘要

An aluminum-based alloy having the following composition, % w/w:and at least one element selected from the following group:The process of heat treating the alloy includes the steps of quenching the alloy from a temperature of 400-500° C. in cold water or air, stretched-adjusting it to increase ductility up to 0 2 %, and a three stage heat treatment, in which in stage 1 the alloy is heated at 80-90° C. over the course of 3-12 h, in stage 2 it is heated at 110-185° C. over the course of 10-58 h, and in stage 3 it is heated at 90-110° C. for 14 h, or at a cooling rate of 2-80° C. C/h.