The invention provides an aluminum alloy which comprises the following components in percentage by mass: 8%-11% of Si, 0.01%-0.4% of Cr, 0.001%-0.01% of P, 0.001%-0.05% of Sr, less than 0.12% of Fe, less than 0.005% of Mn and 87.5%-91.988% of Al. By strictly controlling the content of Mn and Fe and containing specific amounts of Si, Cr, P and Sr elements, the aluminum alloy which has ultrahigh elongation and can keep good die-casting property at the same time can be obtained. The aluminum alloy can have ultrahigh elongation without heat treatment, and can be suitable for various structural parts with higher requirements on the elongation.

    本申请提供了一种铝合金,以质量百分含量计,包括如下组分:Si的含量为8%~11%,Cr的含量为0.01%~0.4%,P的含量为0.001%~0.01%,Sr的含量为0.001%~0.05%,Fe的含量<0.12%,Mn的含量<0.005%,Al的含量为87.515%~91.988%。本申请通过严格控制Mn、Fe的含量,并含有特定量的Si、Cr、P、Sr元素,能够得到具有超高延伸率,且能够同时保持良好的压铸性的铝合金。该铝合金无需经过热处理,即可具有超高延伸率,可适用于各种对延伸率有较高要求的结构件。


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    Title :

    Aluminum alloy and aluminum alloy structural member


    Additional title:

    一种铝合金及铝合金结构件


    Contributors:
    JIANG SIBEN (author) / GUO QIANG (author) / LI ZIHAO (author) / TANG YANG (author) / LU KEXIN (author)

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B62D MOTOR VEHICLES , Motorfahrzeuge



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