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    Articles comprising ferritic stainless steels
    42.
    发明授权
    Articles comprising ferritic stainless steels 有权
    铁素体不锈钢制品

    公开(公告)号：US09376741B2

    公开(公告)日：2016-06-28

    申请号：US13873270

    申请日：2013-04-30

    申请人： ATI Properties, Inc

    发明人： James M. Rakowski

    IPC分类号： H01M4/64 ,  H01M8/00 ,  C23C8/10 ,  C21D1/74 ,  C21D3/02 ,  C21D6/00 ,  C23C8/08 ,  H01M8/02 ,  H01B1/02 ,  H01M8/12

    CPC分类号： C23C8/10 ,  C21D1/74 ,  C21D3/02 ,  C21D6/002 ,  C21D6/008 ,  C23C8/08 ,  H01B1/02 ,  H01M8/00 ,  H01M8/021 ,  H01M8/0228 ,  H01M2008/1293 ,  Y02E60/50 ,  Y02E60/525 ,  Y02P70/56

    摘要： An article of manufacture comprises a ferritic stainless steel that includes a near-surface region depleted of silicon relative to a remainder of the ferritic stainless steel. The article has a reduced tendency to form an electrically resistive silica layer including silicon derived from the steel when the article is subjected to high temperature oxidizing conditions. The ferritic stainless steel is selected from the group comprising AISI Type 430 stainless steel, AISI Type 439 stainless steel, AISI Type 441 stainless steel, AISI Type 444 stainless steel, and E-BRITE® alloy, also known as UNS 44627 stainless steel. In certain embodiments, the article of manufacture is a fuel cell interconnect for a solid oxide fuel cell.

    摘要翻译： 一种制品包括铁素体不锈钢，其包括相对于铁素体不锈钢的其余部分而缺少硅的近表面区域。 当制品经受高温氧化条件时，该制品具有形成电阻二氧化硅层的倾向，包括来自钢的硅。 铁素体不锈钢选自AISI 430型不锈钢，AISI 439型不锈钢，AISI 441型不锈钢，AISI 444型不锈钢和E-BRITE®合金，也称为UNS 44627不锈钢。 在某些实施例中，制品是用于固体氧化物燃料电池的燃料电池互连。

    FINISH HEAT TREATMENT METHOD AND FINISH HEAT TREATMENT APPARATUS FOR IRON POWDER
    43.
    发明申请
    FINISH HEAT TREATMENT METHOD AND FINISH HEAT TREATMENT APPARATUS FOR IRON POWDER 有权
    完成热处理方法及完成热处理设备

    公开(公告)号：US20160114391A1

    公开(公告)日：2016-04-28

    申请号：US14987117

    申请日：2016-01-04

    申请人： JFE STEEL CORPORATION

    发明人： Yasuhiko SAKAGUCHI ,  Toshio MAETANI

    IPC分类号： B22F1/00 ,  C21D3/04 ,  C21D3/08 ,  F27D7/02 ,  F27B9/02 ,  F27B9/04 ,  F27B9/24 ,  C21D1/74 ,  C21D3/02

    CPC分类号： B22F1/0088 ,  B22F1/0003 ,  B22F1/0081 ,  B22F1/0085 ,  B22F2201/013 ,  B22F2201/10 ,  B22F2201/32 ,  B22F2301/35 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/74 ,  C21D3/02 ,  C21D3/04 ,  C21D3/08 ,  F27B9/028 ,  F27B9/045 ,  F27B9/047 ,  F27B9/243 ,  F27D7/02

    摘要： In a finish heat treatment method and finish heat treatment apparatus for an iron powder, a raw iron powder is placed on a continuous moving hearth and continuously charged into the apparatus. In the pretreatment zone, the raw iron powder is subjected to a pretreatment of heating the raw iron powder in an atmosphere of hydrogen gas and/or inert gas at 450 to 1100° C. In decarburization, deoxidation, and denitrification zones, the pretreated iron powder is subsequently subjected to at least two treatments of decarburization, deoxidation, and denitrification. In the pretreatment zone, a hydrogen gas and/or an inert gas serving as a pretreatment ambient gas is introduced separately from an ambient gas used in the at least two treatments is introduced from the upstream side of the pretreatment zone and released from the downstream side so as to flow in the same direction as a moving direction of the moving hearth.

    摘要翻译： 在热处理方法和铁粉末热处理装置中，将生铁粉放置在连续移动的炉床上，并连续地装入装置。 在预处理区域中，在450〜1100℃的氢气和/或惰性气体气氛中对生铁粉进行预处理。在脱碳，脱氧，脱氮区中，预处理的铁 粉末随后进行至少两次脱碳，脱氧和脱氮处理。 在预处理区域中，将氢气和/或用作预处理环境气体的惰性气体与从至少两个处理中使用的环境气体分开引入，从预处理区域的上游侧引入并从下游侧释放 以便沿与移动炉床的移动方向相同的方向流动。

    Removal of oxide layers from titanium castings using an alkaline earth deoxidizing agent
    46.
    发明授权
    Removal of oxide layers from titanium castings using an alkaline earth deoxidizing agent 失效
    使用碱土脱氧剂从钛铸件去除氧化物层

    公开(公告)号：US5211775A

    公开(公告)日：1993-05-18

    申请号：US802012

    申请日：1991-12-03

    申请人： Richard L. Fisher ,  Stanley R. Seagle

    发明人： Richard L. Fisher ,  Stanley R. Seagle

    IPC分类号： B22D21/02 ,  C21D1/76 ,  C21D3/02 ,  C23G5/00

    CPC分类号： C23G5/00

    摘要： The invention relates to a process for the removal of oxides and/or oxygen which are formed on the surface of the casting during the investment casting process to levels that are comparable to those found within the bulk of the metal casting thus reducing the inherent hardness of the surfaces of the casting. More specifically, the invention relates to a process for removing oxide layers from titanium casting using an alkaline earth deoxidizing agent.

    摘要翻译： 本发明涉及一种用于去除在熔模铸造过程中在铸件表面上形成的氧化物和/或氧气的方法，其水平与在金属铸件的主体内发现的水平相当，从而降低了固体硬度 铸件的表面。 更具体地，本发明涉及使用碱土金属脱氧剂从钛铸造中除去氧化物层的方法。

    Cermet blade member for cutting-tools and process for producing same
    47.
    发明授权
    Cermet blade member for cutting-tools and process for producing same 失效
    用于切割工具的CERMET刀片构件及其制造方法

    公开(公告)号：US5059491A

    公开(公告)日：1991-10-22

    申请号：US435200

    申请日：1989-11-09

    申请人： Niro Odani ,  Kazuyoshi Yoshioka ,  Sinichi Sekiya

    发明人： Niro Odani ,  Kazuyoshi Yoshioka ,  Sinichi Sekiya

    IPC分类号： B23B27/14 ,  C21D3/02 ,  C22C1/05 ,  C22C29/04

    CPC分类号： C22C1/051 ,  C22C29/04 ,  Y10T428/12486

    摘要： A blade member for cutting-tools includes a cermet substrate which contains, apart from unavoidable impurities, a binder phase and a hard dispersed phase. The binder phase contains 5% to 30% by weight of cobalt and/or nickel. The hard dispersed phase contains a balance composite carbonitride of titanium and one or more of the elements tungsten, molybdenum, tantalum, niobium, hafnium and zirconium. The composite carbo-nitride satisfies the relationship 0.2.ltoreq.b/(a+b).ltoreq.0.7, where a and b denote atomic ratios of carbon and nitrogen, respectively. The substrate includes a hard surface layer in which the maximum hardness is present at a depth between 5 .mu.m and 50 .mu.m from a substrate surface thereof. The substrate surface has a hardness of 20% to 90% of the maximum hardness.