公开(公告)号：WO2021242772A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/034082

申请日：2021-05-25

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： BAE, Douglas S. ,  BERUBE, Patrick ,  LIN, Jen C.

IPC: C22C21/02 ,  C22C21/10 ,  C22F1/043 ,  C22F1/053

Abstract: New aluminum alloys having an improved combination of properties are disclosed. In one approach, a new aluminum alloys may include from 0.50 to 3.0 wt. % of X, wherein X comprises (wt. % Bi + wt. % Sn), from 0.50 to 4.0 wt. % Si, from 0.30 to 2.5 wt. % Mg, up to 1.5 wt. % Cu, up to 2.0 wt. % Zn, from 0.05 to 1.5 wt. % Mn, up to 0.70 wt. % Fe, up to 0.35 wt. % of Cr, up to 0.25 wt. % each of Zr and V, and up to 0.15 wt. % Ti, the balance being aluminum, incidental elements and impurities. The new aluminum alloys may comprise at least 0.20 wt. % excess silicon. The new aluminum alloys may comprise high amounts of strengthening precipitates, such as at least 1.75 mol. % of Y, wherein Y is (mol. % Q-phase + mol. % Al2Cu + mol. % Mg2Si) as calculated using PANDAT and a temperature of 340F.

公开(公告)号：WO2022094406A1

公开(公告)日：2022-05-05

申请号：PCT/US2021/057580

申请日：2021-11-01

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： RUAN, Yimin ,  MASKELL, John S. ,  MURPHY, Bryan K. ,  BERUBE, Patrick

IPC: C22C21/02 ,  C22F1/043

Abstract: New 6xxx aluminum alloy products and methods and systems of making the same are disclosed. A method may include heating a billet of a 6xxx aluminum alloy to a preheat temperature, holding the billet at the preheat temperature for a time sufficient to dissolve at least some precipitate hardening phases of the billet, extruding the billet into an extruded product wherein, during the extruding, both the billet and the extruded product are maintained at or above the preheat temperature, discharging the extruded product from the extrusion apparatus while maintaining the extruded product within 100F of a solvus temperature of the 6xxx aluminum alloy, and moving the extruded product from the heating shroud to a quenching apparatus.