HIGHLY CORROSION-RESISTANT ALUMINUM ALLOY
    5.
    发明公开

    公开(公告)号:EP4317501A1

    公开(公告)日:2024-02-07

    申请号:EP21935264.8

    申请日:2021-03-31

    申请人: Wheel Corporation

    发明人: YOO, Tae Seung

    IPC分类号: C22C21/02 C22F1/043 C22C1/04

    摘要: Proposed is a highly corrosion-resistant aluminum alloy including one or more components selected from among 0.1 wt.% or less (except for 0 wt.%) of Cu, 0.15 wt.% or less (except for 0 wt.%) of Si, 0.2 wt.% or less (except for 0 wt.%) of Fe, 0.9 to 1.5 wt.% of Mn, 0.03 to 0.15wt.% of Ti, 0.03 to 0.15 wt.% of Cr, and 0.03 to 0.15 wt.% of Zr, and the remaining proportion of aluminum (Al) and unavoidable impurities. The highly corrosion-resistant aluminum alloy contains Ti, Cr, and Zr in a predetermined weight ratio or in equal weight percentages (wt.%), thereby exhibiting improved corrosion resistance in a saline water environment while exhibiting excellent levels in tensile strength and yield strength.

    ALUMINUM ALLOY FOR AUTOMOBILE WHEELS, AND AUTOMOBILE WHEEL

    公开(公告)号:EP4239092A1

    公开(公告)日:2023-09-06

    申请号:EP21886062.5

    申请日:2021-10-21

    发明人: MARUYAMA, Takumi

    IPC分类号: C22C21/02 C22F1/00 C22F1/043

    摘要: There is provided an aluminum alloy for automobile wheels which contains Si in a range of 8.0% by mass or more and 11.5% by mass or less, Cu in a range of 0.7% by mass or more and 1.2% by mass or less, Mg in a range of 0.2% by mass or more and 0.6% by mass or less, Mn in a range of 0.30% by mass or more and 0.60% by mass or less, Fe in a range of 0.10% by mass or more and 0.30% by mass or less, Cr in a range of 0.01% by mass or more and 0.03% by mass or less, and balance Al with inevitable impurities, in which the aluminum alloy does not contain, per 1182 µm 2 , two or more crystallized products containing 1% by mass or more of Cu and having a circle equivalent diameter exceeding 5 µm, the aluminum alloy does not contain, per 1182 µm 2 , two or more Cr-containing intermetallic compounds having a length of 8 µm or more, and the aluminum alloy does not contain, per 4726 µm 2 , two or more primary crystal Si particles having a circle equivalent diameter exceeding 10 µm.