公开(公告)号：US20250066883A1

公开(公告)日：2025-02-27

申请号：US18940036

申请日：2024-11-07

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Steve R. Claves ,  Gregory B. Venema ,  Wei Wen ,  Kimberly Maciejewski

IPC: C22C21/10 ,  C22F1/053

Abstract: New 7xxx aluminum alloys are disclosed. The new 7xxx aluminum alloys may comprise from 5-10 wt. % Zn, 1-3 wt. % Mg, 1-3 wt. % Cu, a thickness of at least 2 inches, from 10% to 40% recrystallized grains, and an average grain size of at least 300 micrometers. The new 7xxx aluminum alloys may have recrystallized areas and the ratio of intercept distances for the recrystallized areas to the average to grain size may be from 0.5 and 2.0. In some embodiments, at least some recrystallized grains are located on a periphery of unrecrystallized grains. The recrystallized grains may be achieved at least partially due to (i) the use of not greater than 0.11 wt. % Zr in the 7xxx aluminum alloy product, (ii) particle stimulated nucleation, or (iii) both.

公开(公告)号：US20230272515A1

公开(公告)日：2023-08-31

申请号：US18134969

申请日：2023-04-14

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Cagatay Yanar ,  Gregory B. Venema ,  Wei Wen

IPC: C22F1/047 ,  C22C21/08

CPC classification number: C22F1/047 ,  C22C21/08

Abstract: New 5xxx aluminum alloys and products made therefrom are disclosed. In one approach, a new 5xxx aluminum alloy may include from 3.5 to 4.6 wt. % Mg, from 0.5 to 1.3 wt. % Mn, from 0.08 to 0.15 wt. % Sc, from 0.05 to 0.15 wt. % Zr, up to 0.8 wt. % Zn, up to 0.20 wt. % Cr, up to 0.20 wt. % V, up to 0.20 wt. % Cu, up to 0.15 wt. % Ti, up to 0.10 wt. % Fe, up to 0.10 wt. % Si, the balance being aluminum, incidental elements and impurities. The 5xxx aluminum alloy sheet product may include, for instance, at least 0.5 vol. % of beta phase particles.

公开(公告)号：US12194529B2

公开(公告)日：2025-01-14

申请号：US17307453

申请日：2021-05-04

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Julien Boselli ,  Jen C. Lin ,  Lynette M. Karabin ,  Wei Wen

IPC: C22C21/14 ,  B22D21/00 ,  C22C21/16 ,  C22C21/18 ,  B22F10/28

Abstract: New 2xxx aluminum alloys having are disclosed. The new 2xxx aluminum alloys generally include 2.5-3.9 wt. % Cu, 0.82-1.20 wt. % Li, 0.5-2.0 wt. % Zn, 0.10-0.60 wt. % Mn, 0.05-0.35 wt. % Mg, from 0.05 to 0.50 wt. % of at least one grain structure control element, wherein the at least one grain structure control element is selected from the group consisting of Zr, Sc, Cr, V, Hf, other rare earth elements, and combinations thereof, up to 0.22 wt. % Ag, up to 0.15 wt. % Fe, up to 0.12 wt. % Si, and up to 0.15 wt. % Ti, the balance being aluminum, incidental elements and impurities. The new 2xxx aluminum alloys may realize an improved combination of two or more of strength, fracture toughness, elongation, and corrosion resistance.

公开(公告)号：US20210404038A1

公开(公告)日：2021-12-30

申请号：US17307453

申请日：2021-05-04

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Julien Boselli ,  Jen C. Lin ,  Lynette M. Karabin ,  Wei Wen

IPC: C22C21/18 ,  C22C21/14 ,  C22C21/16

Abstract: New 2xxx aluminum alloys having are disclosed. The new 2xxx aluminum alloys generally include 2.5-3.9 wt. % Cu, 0.82-1.20 wt. % Li, 0.5-2.0 wt. % Zn, 0.10-0.60 wt. % Mn, 0.05-0.35 wt. % Mg, from 0.05 to 0.50 wt. % of at least one grain structure control element, wherein the at least one grain structure control element is selected from the group consisting of Zr, Sc, Cr, V, Hf, other rare earth elements, and combinations thereof, up to 0.22 wt. % Ag, up to 0.15 wt. % Fe, up to 0.12 wt. % Si, and up to 0.15 wt. % Ti, the balance being aluminum, incidental elements and impurities. The new 2xxx aluminum alloys may realize an improved combination of two or more of strength, fracture toughness, elongation, and corrosion resistance.