公开(公告)号：US20210087656A1

公开(公告)日：2021-03-25

申请号：US17020234

申请日：2020-09-14

Applicant: Apple Inc.

Inventor： Katie L. Sassaman ,  Brian M. Gable ,  Herng-Jeng Jou ,  Weiming Huang ,  James A. Yurko

IPC: C22C21/08 ,  C22C1/02

Abstract: The disclosure is directed to aluminum alloys made from recycled components. The alloys have copper (Cu) from 0.051 to 0.10 wt %, chromium (Cr) from 0.01 to 0.10 wt %, zinc (Zn) from 0.02 to 0.20 wt %, manganese (Mn) from 0.03 to 0.10 wt %, iron (Fe) in an amount of at least 0.10 wt %, silicon (Si) in an amount of at least 0.35 wt %, magnesium (Mg) in amount of at least 0.45 wt %, and the remaining wt % being Al and incidental impurities. In other aspects, the disclosure is directed to aluminum alloys having copper (Cu) from 0.010 to 0.050 wt %, chromium (Cr) from 0.01 to 0.10 wt %, zinc (Zn) from 0.01 to 0.20 wt %, manganese (Mn) from 0.03 to 0.10 wt %, iron (Fe) in an amount of at least 0.10 wt %, silicon (Si) in an amount of at least 0.35 wt %, magnesium (Mg) in amount of at least 0.45 wt %, and the remaining wt % being Al and incidental impurities. The b* color of the alloys ranges from −2 to 2, and the L* color ranges from 70 to 100.

公开(公告)号：US20180265958A1

公开(公告)日：2018-09-20

申请号：US15926897

申请日：2018-03-20

Applicant: Apple Inc.

Inventor： Hoishun Li ,  Ethan E. Currens ,  Weiming Huang ,  James A. Wright

IPC: C23C8/26 ,  C23C8/80 ,  C21D1/06 ,  C22C38/44 ,  C22C38/42 ,  C22C38/50 ,  C22C38/46 ,  C22C38/48 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

CPC classification number: C23C8/26 ,  C21D1/06 ,  C21D1/74 ,  C21D6/004 ,  C21D8/0257 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2261/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C23C8/02 ,  C23C8/80

Abstract: The disclosure provides methods of making iron-based alloys, as well as resulting alloys. An iron-based alloy containing a small amount of nickel (e.g., 0.5 to 2.0 wt %) is annealed and machined. The alloy is sufficiently ductile to reduce the likelihood of cracking, while not sufficiently high to result in a hardened alloy. After the alloy is shaped, the alloy is hardened by nitriding.