公开(公告)号：EP3303648A1

公开(公告)日：2018-04-11

申请号：EP16804052.5

申请日：2016-05-26

申请人： Arconic Inc.

发明人： BRYANT, James Daniel ,  WELLER, Coleen E. ,  MOOY, Dirk C. ,  MEISSEN, Zachariah D.

IPC分类号： C22F1/04 ,  C22F1/00 ,  C22C21/00 ,  B21C47/02

CPC分类号： C22F1/057 ,  C22C21/02 ,  C22C21/08 ,  C22C21/10 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C22F1/043 ,  C22F1/047 ,  C22F1/053

摘要： New 6xxx aluminum alloy sheet products and methods of making the same are disclosed. The new methods may include preparing a 6xxx aluminum alloy sheet product for solution heat treatment, solution heat treating and then quenching the 6xxx aluminum alloy sheet product, and then exposing the 6xxx aluminum alloy sheet product to a treatment temperature of from 30° C. to 60° C. for 0.2 to 300 seconds. After the exposing step, the 6xxx aluminum alloy sheet product may be coiled and then placed in an ambient environment. Due to the post-quench heating and subsequent exposure to ambient, a preselected amount of Newtonian cooling may be induced, thereby creating a unique and consistent microstructure within the 6xxx aluminum alloy sheet products.

公开(公告)号：EP3368702A1

公开(公告)日：2018-09-05

申请号：EP16860785.1

申请日：2016-10-27

申请人： Arconic Inc.

发明人： YAN, Xinyan ,  BRYANT, James Daniel ,  LIN, Jen C. ,  ZHANG, Wenping ,  SIMIELLI, Eider

IPC分类号： C22C21/10

CPC分类号： C22C21/10

摘要： New wrought 7xxx aluminum alloys are disclosed. The new wrought 7xxx aluminum alloys generally include from 3.75 to 8.0 wt. % Zn, from 1.25 to 3.0 wt. % Mg, where the wt. % Zn exceeds the wt. % Mg, from 0.35 to 1.35 wt. % Cu, from 0.04 to 0.20 wt. % V, from 0.06 to 0.20 wt. % Zr, where V+Zr≦0.23 wt. %, from 0.01 to 0.25 wt. % Ti, up to 0.50 wt. % Mn, up to 0.40 wt. % Cr, up to 0.35 wt. % Fe, and up to 0.25 wt. % Si, the balance being aluminum and impurities, wherein the wrought 7xxx aluminum alloy include not greater than 0.10 wt. % each of any one impurity, and wherein the wrought 7xxx aluminum alloy includes not greater than 0.35 wt. % in total of the impurities.