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    Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
    11.
    发明专利
    Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells 未知

    公开(公告)号：AU2006259739A1

    公开(公告)日：2006-12-28

    申请号：AU2006259739

    申请日：2006-06-01

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M ,  STINNER CHARLES P

    IPC: H01M8/02

    Abstract: Embodiments of the present invention provide a method of making an interconnect comprising a) connecting a metallic material to at least a portion of a ferritic stainless steel, the metallic material being nickel or a nickel alloy, copper or a copper alloy, or a nickel-copper alloy, and b) forming an interconnect from the ferritic stainless steel. The invention further provides a method of making an interconnect comprising a) forming an interconnect from a ferritic stainless steel sheet material, the interconnect having a fuel side and an oxidant side opposite the fuel side, each of the oxidant side and the fuel side comprising a via and a gas flow channel, and b) selectively electropolishing at least a portion of at least one gas flow channel of the oxidant side of the interconnect. The invention further provides a method of making an interconnect comprising a) forming an interconnect from a ferritic stainless steel, the interconnect comprising a via and a gas flow channel, b) electropolishing at least a portion of the oxidant side of the interconnect, and c) physically or chemically removing material from at least one electropolished surface of at least one via of the oxidant side of the interconnect.

    LEAN AUSTENITIC STAINLESS STEEL
    12.
    发明专利
    LEAN AUSTENITIC STAINLESS STEEL 未知

    公开(公告)号：ZA201003331B

    公开(公告)日：2022-03-30

    申请号：ZA201003331

    申请日：2010-05-11

    Applicant: ATI PROPERTIES INC

    Inventor： BERGSTROM DAVID S ,  RAKOWSKI JAMES M ,  STINNER CHARLES P ,  DUNN JOHN J ,  GRUBB JOHN F

    Abstract: An austenitic stainless steel having low nickel and molybdenum and exhibiting comparable corrosion resistance and formability properties to higher nickel and molybdenum alloys comprises, in weight %, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 1.0-5.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities, the steel having a ferrite number of less than 10 and a MD30 value of less than 20° C.

    Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
    14.
    发明专利
    Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells 未知

    公开(公告)号：AU2011244954A1

    公开(公告)日：2011-11-24

    申请号：AU2011244954

    申请日：2011-11-03

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M ,  STINNER CHARLES P

    IPC: H01M8/02

    Abstract: Abstract Various non-limiting embodiments are disclosed relating to interconnects for use with solid oxide fuel cells. For example, one non-limiting embodiment relates to an interconnect for use with solid oxide fuel cells comprising a gas-impermeable body, the gas impermeable body being formed from a ferritic stainless steel and including (a) a fuel side comprising a via and a gas flow channel, and (b) an oxidant side opposite the fuel side, the oxidant side comprising a via and a gas flow channel; wherein a metallic material that forms an oxide having a dissociation pressure greater than a partial pressure of oxygen proximate the fuel side of the interconnect during operation of the solid oxide fuel cells is connected to at least a portion of the ferritic stainless steel on the fuel side of the body.

    Austenitic stainless steel
    15.
    发明专利
    Austenitic stainless steel 未知

    公开(公告)号：AU2006344097B2

    公开(公告)日：2011-07-07

    申请号：AU2006344097

    申请日：2006-04-07

    Applicant: ATI PROPERTIES INC

    Inventor： STINNER CHARLES P ,  RAKOWSKI JAMES M

    IPC: C22C38/44 ,  C22C38/48 ,  C22C38/58

    Abstract: Embodiments of an austenitic stainless steel include, in weight percentages based on total weight of the steel: 0.05 to 0.2 carbon; 0.08 to 0.2 nitrogen; 20 to 23 chromium; 25 to 27 nickel; 1 to 2 molybdenum; greater than 1.5 to 4.0 manganese; 0.20 to 0.75 niobium; up to 0.1 titanium; iron; and incidental impurities. Certain other embodiments of an austenitic stainless steel include, in weight percentages based on total weight of the steel: 0.05 to 0.2 carbon; 0.08 to 0.2 nitrogen; 20 to 23 chromium; 25 to 27 nickel; 1 to 2 molybdenum; up 4.0 manganese; 0.20 to 0.75 niobium; at least one of no greater than 0.1 titanium and no greater than 0.1 aluminum; iron; and incidental impurities.

    ACERO INOXIDABLE AUSTENITICO POBRE.
    16.
    发明专利
    ACERO INOXIDABLE AUSTENITICO POBRE. 未知

    公开(公告)号：MX2010005670A

    公开(公告)日：2010-06-02

    申请号：MX2010005670

    申请日：2008-02-26

    Applicant: ATI PROPERTIES INC

    Inventor： GRUBB JOHN F ,  BERGSTROM DAVID S ,  DUNN JOHN J ,  RAKOWSKI JAMES M ,  STINNER CHARLES P

    IPC: C22C38/42 ,  C22C38/44 ,  C22C38/58

    Abstract: Un acero inoxidable austenítico que tiene bajo contenido de níquel y molibdeno y muestra propiedades de resistencia a la corrosión y formabilidad comparables a aleaciones con contenido más elevado de níquel y molibdeno, comprende, en % en peso, hasta 0.20 de C, 2.0-9.0 de Mn, hasta 2.0 de Si, 16.0-23.0 de Cr, 1.0-5.0 de Ni, hasta 3.0 de Mo, hasta 3.0 de Cu, 0.1-0.35 de N, hasta 4.0 de W, hasta 0.01 de B, hasta 1.0 de Co, hierro e impurezas, y el acero tiene un número de ferrita menor que 10 y un valor de MD30 menor que 20°ree;C.

    17.
    发明专利
    未知

    公开(公告)号：BRPI0607922A2

    公开(公告)日：2009-10-20

    申请号：BRPI0607922

    申请日：2006-04-07

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M ,  STINNER CHARLES P

    IPC: C22C38/44 ,  C22C38/48 ,  C22C38/58

    Abstract: Embodiments of an austenitic stainless steel include, in weight percentages based on total weight of the steel: 0.05 to 0.2 carbon; 0.08 to 0.2 nitrogen; 20 to 23 chromium; 25 to 27 nickel; 1 to 2 molybdenum; greater than 1.5 to 4.0 manganese; 0.20 to 0.75 niobium; up to 0.1 titanium; iron; and incidental impurities. Certain other embodiments of an austenitic stainless steel include, in weight percentages based on total weight of the steel: 0.05 to 0.2 carbon; 0.08 to 0.2 nitrogen; 20 to 23 chromium; 25 to 27 nickel; 1 to 2 molybdenum; up 4.0 manganese; 0.20 to 0.75 niobium; at least one of no greater than 0.1 titanium and no greater than 0.1 aluminum; iron; and incidental impurities.

    18.
    发明专利
    未知

    公开(公告)号：NO20080290L

    公开(公告)日：2008-01-15

    申请号：NO20080290

    申请日：2008-01-15

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M ,  STINNER CHARLES P

    IPC: H01M8/02

    Abstract: Embodiments of the present invention provide a method of making an interconnect comprising a) connecting a metallic material to at least a portion of a ferritic stainless steel, the metallic material being nickel or a nickel alloy, copper or a copper alloy, or a nickel-copper alloy, and b) forming an interconnect from the ferritic stainless steel. The invention further provides a method of making an interconnect comprising a) forming an interconnect from a ferritic stainless steel sheet material, the interconnect having a fuel side and an oxidant side opposite the fuel side, each of the oxidant side and the fuel side comprising a via and a gas flow channel, and b) selectively electropolishing at least a portion of at least one gas flow channel of the oxidant side of the interconnect. The invention further provides a method of making an interconnect comprising a) forming an interconnect from a ferritic stainless steel, the interconnect comprising a via and a gas flow channel, b) electropolishing at least a portion of the oxidant side of the interconnect, and c) physically or chemically removing material from at least one electropolished surface of at least one via of the oxidant side of the interconnect.

    INTERCONNECTS FOR SOLID OXIDE FUEL CELLS AND FERRITIC STAINLESS STEELS ADAPTED FOR USE WITH SOLID OXIDE FUEL CELLS
    19.
    发明专利
    INTERCONNECTS FOR SOLID OXIDE FUEL CELLS AND FERRITIC STAINLESS STEELS ADAPTED FOR USE WITH SOLID OXIDE FUEL CELLS 未知

    公开(公告)号：CA2604593A1

    公开(公告)日：2006-12-28

    申请号：CA2604593

    申请日：2006-06-01

    Applicant: ATI PROPERTIES INC

    Inventor： STINNER CHARLES P ,  RAKOWSKI JAMES M

    IPC: H01M8/02

    Abstract: Various embodiments relate to interconnects for solid oxide fuel cells ("SOFCs") comprising ferritic stainless steel and having at least one via th at when subjected to an oxidizing atmosphere at an elevated temperature develop s a scale comprising a manganese- chromate spinel on at least a portion of a surface thereof, and at least one gas flow channel that when subjected to an oxidizing atmosphere at an elevated temperature develops an aluminum-rich oxide scale on at least a portion of a surface thereof. Other embodiments relate to interconnects comprising a ferritic stainless steel and having a fuel side comprising metallic material that resists oxidation during operati on of the SOFCs, and optionally include a nickel-base superalloy on the oxidant side thereof. Still other embodiments relate to ferritic stainless steels adapted for use as interconnects comprising 1 up to 2 weight percent manganese. Methods of maki ng interconnects are also disclosed.

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