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    Surface modification to improve fireside corrosion resistance of Fe-Cr ferritic steels
    1.
    发明申请
    Surface modification to improve fireside corrosion resistance of Fe-Cr ferritic steels 失效
    改善Fe-Cr铁素体钢的炉边耐腐蚀性能进行表面改性

    公开(公告)号：US20070037009A1

    公开(公告)日：2007-02-15

    申请号：US11374849

    申请日：2006-03-14

    申请人： Jong-Hee Park ,  Krishnamurti Natesan ,  David Rink

    发明人： Jong-Hee Park ,  Krishnamurti Natesan ,  David Rink

    IPC分类号： C23C10/46 ,  C23C10/48

    CPC分类号： C23C10/52 ,  C23C10/46 ,  C23C10/50 ,  Y10T428/12958

    摘要： An article of manufacture and a method for providing an Fe—Cr ferritic steel article of manufacture having a surface layer modification for corrosion resistance. Fe—Cr ferritic steels can be modified to enhance their corrosion resistance to liquid coal ash and other chemical environments, which have chlorides or sulfates containing active species. The steel is modified to form an aluminide/silicide passivating layer to reduce such corrosion.

    摘要翻译： 一种用于提供具有耐腐蚀性的表面层改性的Fe-Cr铁素体钢制品的制造方法和方法。 Fe-Cr铁素体钢可以改性，以增强其对液态煤灰和其他具有含有活性物质的氯化物或硫酸盐的化学环境的耐腐蚀性。 钢被改性以形成铝化物/硅化物钝化层以减少这种腐蚀。

    Article having a surface protected by a silicon-containing diffusion coating
    2.
    发明申请
    Article having a surface protected by a silicon-containing diffusion coating 审中-公开
    具有被含硅扩散涂层保护的表面的物品

    公开(公告)号：US20060057416A1

    公开(公告)日：2006-03-16

    申请号：US11109160

    申请日：2005-04-19

    申请人： Nrinpendra Das ,  Bangalore Nagaraj ,  Matthew Saylor ,  Jackie King

    发明人： Nrinpendra Das ,  Bangalore Nagaraj ,  Matthew Saylor ,  Jackie King

    IPC分类号： B22D25/00

    CPC分类号： C23C10/46 ,  C23C10/08 ,  Y10T428/12458 ,  Y10T428/12674

    摘要： A surface of an article is protected by coating the surface with a silicon-containing coating by preparing a coating mixture of silicon, a halide activator, and an oxide powder, positioning the surface of the article in gaseous communication with the coating mixture, and heating the surface of the article and the coating mixture to a coating temperature of from about 1150° F. to about 1500° F. The article is preferably a component of a gas turbine engine made of a nickel-base superalloy.

    摘要翻译： 通过制备硅，卤化物活化剂和氧化物粉末的涂料混合物，通过用含硅涂层涂覆表面来保护制品的表面，将制品的表面与涂料混合物气态连通并加热 制品的表面和涂料混合物的涂覆温度为约1150°F至约1500°F。制品优选为由镍基超级合金制成的燃气涡轮发动机的部件。

    SILICON STEEL SHEET AND METHOD FOR PRODUCING THE SAME
    5.
    发明申请
    SILICON STEEL SHEET AND METHOD FOR PRODUCING THE SAME 有权
    硅钢板及其制造方法

    公开(公告)号：US20020134466A1

    公开(公告)日：2002-09-26

    申请号：US09423509

    申请日：2000-01-24

    发明人： MISAO NAMIKAWA ,  YOSHIKAZU TAKADA ,  SHOJI KASAI ,  HIRONORI NINOMIYA ,  TSUNEHIRO YAMAJI ,  TATSUHIKO HIRATANI

    IPC分类号： H01F001/04 ,  C22C038/02

    CPC分类号： C23C16/56 ,  C21D8/1255 ,  C22C38/004 ,  C22C38/02 ,  C23C10/08 ,  C23C10/46 ,  C23C10/60 ,  C23C16/24

    摘要： A silicon steel sheet having low iron loss of high frequency has a surface layer of the steel sheet which has Si concentration higher than Si concentration of a center portion of the steel sheet. Si concentration of sheet thickness center is 3.4 wt. % or more and Si concentration of the surface layer of the steel sheet is 5 wt. % or more. Si concentration in a surface layer portion is 5 to 8 wt. %. The production method comprises siliconizing treatment and diffusing treatment. Velocity of siliconizing and diffusing are controlled, and Si concentration distribution in the sheet thickness direction of the steel sheet is controlled.

    摘要翻译： 具有低频铁损的硅钢板具有Si浓度高于钢板中心部分的Si浓度的钢板表面层。 板厚中心的Si浓度为3.4wt。 ％以上，钢板表层的Si浓度为5重量％。 ％ 或者更多。 表层部的Si浓度为5〜8重量％。 ％。 生产方法包括硅化处理和扩散处理。 控制硅化和扩散速度，控制钢板厚度方向的Si浓度分布。

    Diffusion of elements into steel by catalyzed oxide reduction
    6.
    发明授权
    Diffusion of elements into steel by catalyzed oxide reduction 失效
    通过催化氧化还原将元素扩散到钢中

    公开(公告)号：US4904500A

    公开(公告)日：1990-02-27

    申请号：US255895

    申请日：1988-10-11

    申请人： Richard C. Krutenat

    发明人： Richard C. Krutenat

    IPC分类号： C23C10/46

    CPC分类号： C23C10/46

    摘要： A process for diffusing silicon into iron or iron alloy by heating the iron or iron alloy with silica and a suitable reducing agent in the presence of a catalyst.

    摘要翻译： 通过在催化剂存在下，用二氧化硅和合适的还原剂加热铁或铁合金将硅扩散到铁或铁合金中的方法。

    Process for diffusing silicon into sheet steel
    7.
    发明授权
    Process for diffusing silicon into sheet steel 失效
    将硅分解成钢板的方法

    公开(公告)号：US3615917A

    公开(公告)日：1971-10-26

    申请号：US3615917D

    申请日：1969-07-11

    申请人： BETHLEHEM STEEL CORP

    发明人： SHIN PAIK W ,  WILLISON RICHARD M

    IPC分类号： B22D43/00 ,  B22D37/00 ,  C23C10/30 ,  C23C10/46 ,  F27D3/15 ,  H01F1/16 ,  C21D7/02 ,  C23C9/00

    CPC分类号： C23C10/46 ,  C23C10/30

    摘要： A process for solid-state diffusion of silicon into sheet steel containing not more than 0.05 percent carbon, the process including preparing sheet steel by conventional methods of melting, pouring and rolling, coating the surfaces of the sheet steel with a layer of powder containing about 15 percent to about 95 percent silicon and the remainder substantially calcium, iron and incidental impurities, compacting the powder onto the sheet and heat treating the composite thus formed in a protective environment to cause a solid-state diffusion of the diffusible silicon into the sheet steel.