公开(公告)号：WO2020206161A1

公开(公告)日：2020-10-08

申请号：PCT/US2020/026443

申请日：2020-04-02

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： KIRSCH, Logan ,  YOCUM, Les A. ,  DENZER, Diana K. ,  BAE, Douglas S. ,  KULOVITS, Andreas K. ,  CHENEY, Ronald G.

IPC: C22C21/00 ,  C22F1/04 ,  C21D8/02

Abstract: New methods of making cold formed, extruded aluminum lithium alloys, and unrecrystallized products made therefrom are disclosed. A method may include one or more of heating an unrecrystallized extruded aluminum-lithium product to a treatment temperature, cooling the unrecrystallized extruded aluminum-lithium product from the treatment temperature to a post-treatment temperature, and cold forming the unrecrystallized extruded aluminum-lithium product into a second product form. Due to the unique processing conditions of the method, the second product form may wholly or partially retain the unrecrystallized microstructure.