公开(公告)号：US20220081741A1

公开(公告)日：2022-03-17

申请号：US17456212

申请日：2021-11-23

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Timothy A. Hosch ,  James Daniel Bryant ,  Dirk C. Mooy

IPC: C22C21/10 ,  C22C21/08 ,  C22F1/053 ,  C22F1/047 ,  C22F1/00

Abstract: New aluminum alloys are disclosed. The new aluminum alloys may include from 0.70 to 1.4 wt. % Si, from 0.70 to 1.3 wt. % Mg, wherein (wt. % Mg)/(wt. % Si) is not greater than 1.40, from 0.70 - 3.0 wt. % Zn, from 0.55 to 1.3 wt. % Cu, wherein the total amount of Si+Mg+Zn+Cu is not greater than 4.25 wt. %, from 0.01 to 0.30 wt. % Fe, up to 0.70 wt. % Mn, up to 0.15 wt. % Cr, up to 0.20 wt. % Zr, up to 0.20 wt. % V, and up to 0.25 wt. % Ti, the balance being aluminum, optional incidental elements and impurities. The new aluminum alloys may realize an improved combination of properties, such as an improved combination of strength, formability and/or corrosion resistance.