公开(公告)号：US20230250516A1

公开(公告)日：2023-08-10

申请号：US18134149

申请日：2023-04-13

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Lynette M. Karabin ,  John M. Newman ,  Carolyn G. Norwood

IPC: C22C21/10 ,  C21D8/02 ,  C22F1/053

CPC classification number: C22C21/10 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C22F1/053

Abstract: New 7xxx aluminum alloys alloys are disclosed. The new 7xxx aluminum alloys may include 5.0-9.0 wt. % Zn, 1.30-2.05 wt. % Mg, 1.10-2.10 wt. % Cu, wherein 2.55≤(wt. % Cu+wt. % Mg)≤3.85, at least one of (i) 0.03-0.40 wt. % Mn and 0.02-0.15 wt. % Zr, wherein 0.05≤(wt. % Zr+wt. % Mn)≤0.50, up to 0.20 wt. % Cr, up to 0.20 wt. % V, up to 0.20 wt. % Fe, up to 0.15 wt. % Si, up to 0.15 wt. % Ti, and up to 75 ppm B, the balance being aluminum, incidental elements and impurities. The new 7xxx aluminum alloys may be in the form of a 7xxx aluminum alloy sheet product having a thickness of from 0.5 to 4.0 mm and comprising at least 15 vol. % recrystallized grains. The new alloys may realize an improved combination of at least two of strength, elongation, fracture behavior and corrosion resistance.

公开(公告)号：US11142815B2

公开(公告)日：2021-10-12

申请号：US14793408

申请日：2015-07-07

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Gavin F. Wyatt-Mair ,  David A. Tomes ,  William D. Bennon ,  Raymond J. Kilmer ,  James C. Riggs ,  Ali Unal ,  John M. Newman ,  Thomas N. Rouns

IPC: C22F1/16 ,  C22F1/10 ,  C22F1/08 ,  C22F1/06 ,  C22F1/18 ,  C22F1/057 ,  C22F1/053 ,  C22F1/047 ,  C22F1/043

Abstract: The present invention, in some embodiments, is a method of forming an O temper or T temper product that includes obtaining a coil of a non-ferrous alloy strip as feedstock; uncoiling the coil of the feedstock; heating the feedstock to a temperature between a recrystallization temperature of the non-ferrous alloy and 10 degrees Fahrenheit below a solidus temperature of the non-ferrous alloy; and quenching the feedstock to form a heat-treated product having am O temper or T temper. The non-ferrous alloy strip used in the method excludes aluminum alloys having 0.4 weight percent silicon, less than 0.2 weight percent iron, 0.35 to 0.40 weight percent copper, 0.9 weight percent manganese, and 1 weight percent magnesium.