Surface Decarburization-Restrained Steel and Manufacturing Method Thereof
    1.
    发明申请
    Surface Decarburization-Restrained Steel and Manufacturing Method Thereof 审中-公开
    表面脱碳 - 限制钢及其制造方法

    公开(公告)号:US20110247734A1

    公开(公告)日:2011-10-13

    申请号:US13141099

    申请日:2009-12-28

    CPC分类号: C22C38/02 C22C38/32 C22C38/54

    摘要: Decarburization-restrained steel and manufacturing method thereof are disclosed. Steel includes a boron (B)-concentrated layer formed on its surface to prevent carbon of the steel from being in contact with oxygen in atmosphere to thus restrain decarburization of the steel. The steel includes a boron-concentrated layer with a thickness of 3 mm or larger formed on the surface of the steel. The method of manufacturing decarburization-restrained steel includes cooling steel containing 0.001 wt % to 0.02 wt % of boron (B) at a cooling speed of 0.5° C./s to 25° C./s at an austenite+ferrite two-phase region.

    摘要翻译: 脱碳钢抑制钢及其制造方法。 钢包括在其表面上形成的硼(B) - 富集层,以防止钢中的碳与大气中的氧接触,从而抑制钢的脱碳。 该钢包含形成在钢表面上的厚度为3mm以上的硼浓缩层。 制造脱碳抑制钢的方法包括:以奥氏体+铁素体相的0.5℃/秒〜25℃/秒的冷却速度含有0.001重量%〜0.02重量%的硼(B)的冷却钢 地区。