A process for preparing lithium-containing flat rolled products based on an aluminum alloy, as well as the products thus obtained

摘要

A process for preparing lithium-containing flat rolled products based on an aluminum alloy,characterized in that it comprises the steps of:(a) providing a molded body from an aluminum alloy, which contains0,2 to 5,0 w -% li,0,05 to 6,0 w -% mg,at least 2,45 w -% cu,0,1 to 1,0 w -% mn,0,05 to 6,0 w -% zn,a maximum. 0,5 W -% fe,a maximum. 0,5 W -% si,at least one of the elements cr, v, hf, zr, ti, sc and ce, cr, v, zr, ti and sc in an amount in the range of 0,01 to 0,2 w -%, hf, in an amount of up to 0,6 w -% and ce in an amount in the range of 0,01 to 0,5 w -% are present,with mg and zn in a ratio in the range of from 0,1 to less than 1 are present,Balance al and incidental impurities;(b) performing at least..