公开(公告)号：US20160348225A1

公开(公告)日：2016-12-01

申请号：US15165595

申请日：2016-05-26

Applicant: Alcoa, Inc.

Inventor： James Daniel Bryant ,  Colleen E. Weller ,  Dirk C. Mooy ,  Zachariah D. Meissen

IPC: C22F1/057 ,  C22C21/16 ,  C22C21/14 ,  C22F1/043 ,  C22C21/08 ,  C22C21/02 ,  C22F1/053 ,  C22F1/047 ,  C22C21/18 ,  C22C21/10

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

Abstract: 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.

Abstract translation: 公开了新的6xxx铝合金板产品及其制造方法。 新方法可能包括制备6xxx铝合金板材，用于固溶热处理，固溶热处理，然后淬火6xxx铝合金板材产品，然后将6xxx铝合金板材产品的处理温度从30°C暴露于 60℃下0.2至300秒。 在暴露步骤之后，6xxx铝合金板材产品可能被卷起，然后放置在周围环境中。 由于后淬火加热并随后暴露于环境中，可能会引起预选量的牛顿冷却，从而在6xxx铝合金板材产品内形成独特且一致的微观结构。