ALUMINIUM OR ALUMINIUMALLOY COATED STEEL MATERIAL AND METHOD FOR MANUFACTURING THE SAME
    2.
    发明公开
    ALUMINIUM OR ALUMINIUMALLOY COATED STEEL MATERIAL AND METHOD FOR MANUFACTURING THE SAME 有权
    全铝合金涂装钢材及其制备方法的

    公开(公告)号:EP2792764A1

    公开(公告)日:2014-10-22

    申请号:EP12856630.4

    申请日:2012-12-10

    IPC分类号: C23C2/12 C22C21/06

    摘要: An object of the present invention is to provide an aluminum or aluminum alloy-coated steel material having better corrosion resistance than the conventional aluminum or aluminum alloy-coated steel material, together with a manufacturing method thereof. Specifically, the present invention provides an aluminum or aluminum alloy-coated steel material, comprising: base steel; and a coating layer formed on a surface of the base steel and containing by mass % Mg: 6% to 10%, Si: 3% to 7%, Fe: 0.2% to 2%, Mn: 0.02% to 2%, and the balance as Al and incidental impurities, wherein the coating layer has αAl-Mg 2 Si-(Al-Fe-Si-Mn) pseudoternary eutectic microstructure and area ratio of the microstructure in the coating layer is at least 30%.

    摘要翻译: 本发明的目的是用其制造方法,以提供具有比传统的铝或铝合金涂覆的钢材更好的耐腐蚀性的铝或涂铝合金钢材,在一起。 具体而言,本发明提供了铝或铝合金涂覆的钢材料,包括:基体钢; 和形成在基体钢的表面上,并且以质量%计的Mg含有涂覆层:6%至10%以下,Si:3%至7%,Fe为0.2%至2%以下,Mn:0.02%至2%,和 剩余部分由Al及不可避免的杂质,worin涂层具有±的Al-Mg 2的Si(Al-Fe系的Si-Mn系)在涂层中的微结构的伪三元共晶组织和面积比为至少30%。