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    PROCESSABLE HIGH THERMAL NEUTRON ABSORBING FE-BASE ALLOYS
    1.
    发明申请
    PROCESSABLE HIGH THERMAL NEUTRON ABSORBING FE-BASE ALLOYS 审中-公开
    可处理的高热中子吸收FE基合金

    公开(公告)号：WO2012027552A1

    公开(公告)日：2012-03-01

    申请号：PCT/US2011/049113

    申请日：2011-08-25

    Applicant: CRS HOLDINGS, INC. ,  SCHMIDT, Michael, L. ,  DEL CORSO, Gregory, J. ,  RAY, Patrick, C. ,  MA, Ning

    Inventor： SCHMIDT, Michael, L. ,  DEL CORSO, Gregory, J. ,  RAY, Patrick, C. ,  MA, Ning

    IPC: B22F1/00 ,  C22C38/54

    CPC classification number: C22C38/54 ,  B22F3/15 ,  B22F3/18 ,  B22F3/24 ,  C22C1/02 ,  C22C33/0285

    Abstract: A corrosion resistant, neutron absorbing, austenitic alloy powder is disclosed having the following composition in weight percent. C 0.08 max., Mn up to 3, Si up to 2, P 0.05 max., S 0.03 max., Cr 17-27, Ni 11-20, Mo+(W/1.92) up to 5.2, B Eq 0.78-13.0, O 0.1 max., N up to 0.2, Y less than 0.005. The alloy contains at least about 0.25% B, at least about 0.05% Gd, and the balance of the alloy composition is iron and usual impurities. B Eq is defined as %>B + 4.35x(%>Gd). An article of manufacture made from consolidated alloy powder is also disclosed which is characterized by a plurality of boride and gadolinide particles dispersed within a matrix. The boride and gadolinide particles are predominantly M 2 B, M 3 B 2 , M 3 X, and M 5 X in form, where X is gadolinium or a combination of gadolinium and boron and M is one or more of the elements silicon, chromium, nickel, molybdenum, iron.

    Abstract translation: 公开了一种耐腐蚀，中子吸收的奥氏体合金粉末，其重量百分比具有以下组成。 C 0.08最大，Mn至3，Si至2，P 0.05最大，S 0.03最大，Cr 17-27，Ni 11-20，Mo +（W / 1.92）至5.2，BEq 0.78-13.0， O 0.1最大，N高达0.2，Y小于0.005。 该合金含有至少约0.25％的B，至少约0.05％的Gd，其余的合金组成是铁和通常的杂质。 BEq定义为％> B + 4.35x（％> Gd）。 还公开了由固结合金粉末制成的制品，其特征在于分散在基质内的多个硼化物和钆化物颗粒。 硼化物和钆基颗粒主要是M2B，M3B2，M3X和M5X，其中X是钆或钆和硼的组合，M是硅，铬，镍，钼，铁中的一种或多种元素。

    FREE-MACHINING POWDER METALLURGY LEAD-FREE STEEL ARTICLES AND METHOD OF MAKING SAME
    3.
    发明申请
    FREE-MACHINING POWDER METALLURGY LEAD-FREE STEEL ARTICLES AND METHOD OF MAKING SAME 审中-公开
    免费加工粉末冶金无铅钢制品及其制造方法

    公开(公告)号：WO2010029505A2

    公开(公告)日：2010-03-18

    申请号：PCT/IB2009/053953

    申请日：2009-09-10

    Applicant: L. KLEIN AG ,  DEL CORSO, Gregory J. ,  SCHIESS, Olivier ,  MARÉCHAL, Pierre H

    Inventor： DEL CORSO, Gregory J. ,  SCHIESS, Olivier ,  MARÉCHAL, Pierre H

    IPC: B22F3/15 ,  B22F5/12 ,  B22F9/08 ,  C22C33/02 ,  C21D8/06

    CPC classification number: B22F5/12 ,  B22F2003/247 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  C21D8/065 ,  C22C33/0264 ,  C22C33/0271 ,  C22C33/0285 ,  B22F9/082 ,  B22F3/15 ,  B22F3/18 ,  B22F3/20 ,  B22F3/24 ,  B22F2201/10 ,  B22F2201/02

    Abstract: A small diameter, elongated steel article, comprising fully consolidated, prealloyed Pb-free metal powder having a superior machinability is disclosed. The consolidated metal powder has a microstructure that has substantially uniform distribution of fine grains having an ASTM grain size number of not smaller than about 9 when determined in accordance with ASTM Standard Specification E 112. The microstructure of the consolidated metal powder is further characterized by having a plurality of sulfides not larger than about 2 microns (2 μm) in major dimension and a plurality of substantially spheroϊdal carbides uniformly distributed throughout the consolidated metal powder that are not greater than about 6 microns (6 μm) in major dimension, both fully geometrically compatible with the ISO Tolerance grade and surface roughness requirements to satisfy. A process for making the elongated steel article is also disclosed.

    Abstract translation: 公开了一种小直径细长钢制品，其包括具有优良机械加工性的完全固结的预合金无铅金属粉末。 当根据ASTM标准规范E112测定时，固结金属粉末具有基本均匀分布的具有不小于约9的ASTM晶粒尺寸数量的微细结构的微观结构。固结金属粉末的微观结构进一步的特征在于具有 多个主要尺寸不大于约2微米（2μm）的硫化物和多个均匀分布在整个金属粉末中的主要尺寸不大于约6微米（6μm）的基本球形碳化物，其全部几何形状 符合ISO公差等级和表面粗糙度要求。 还公开了制造细长钢制品的方法。

    PROCESS FOR IMPROVING THE HOT WORKABILITY OF A CAST SUPERALLOY INGOT
    4.
    发明申请
    PROCESS FOR IMPROVING THE HOT WORKABILITY OF A CAST SUPERALLOY INGOT 审中-公开
    改善CAST SUPERALLOY INGOT的高可用性的方法

    公开(公告)号：WO2004048641A1

    公开(公告)日：2004-06-10

    申请号：PCT/US2003/037933

    申请日：2003-11-26

    Applicant: CRS HOLDINGS, INC. ,  DEL CORSO, Gregory, J. ,  BUCK, E., Lance ,  MOHAMDEIN, Mohamed, K.

    Inventor： DEL CORSO, Gregory, J. ,  BUCK, E., Lance ,  MOHAMDEIN, Mohamed, K.

    IPC: C23C24/08

    CPC classification number: C23C24/087 ,  C23C24/08

    Abstract: A process for preparing a Ni, Fe and Co base superalloy ingot for hot working and an ingot assembly made by the process are disclosed. The process includes the steps of providing a cast ingot and inserting the ingot into a steel canister that is dimensioned to wholly contain said ingot. The ingot is positioned within the steel canister so as to provide a space between the ingot and the steel canister. After the ingot is positioned in the steel canister, metal powder is filled into the space. The metal powder is selected to readily bond with the surfaces of said ingot and the steel canister. The steel canister is then closed with the ingot and the metal powder inside. Gas and moisture are removed from the interior of the steel canister. The steel canister with the ingot and the metal powder inside is hot isostatically pressed to form an ingot assembly having a cladding formed about the entire longitudinal and end surfaces of the ingot. The ingot assembly that is produced from this process is readily hot worked without significant damage to the ingot from cracking or checking.

    Abstract translation: 公开了一种用于制备用于热加工的Ni，Fe和Co基超合金锭以及通过该方法制造的锭组件的方法。 该方法包括提供铸锭并将铸锭插入钢罐的步骤，该钢罐的尺寸被设计成完全容纳所述锭料。 锭位于钢罐内，以便在钢锭和钢罐之间提供一个空间。 在铸锭定位在钢罐中之后，将金属粉末填充到该空间中。 选择金属粉末容易地与所述锭和钢罐的表面粘合。 然后用钢锭和金属粉末封闭钢罐。 从钢罐的内部除去气体和水分。 具有锭和内部的金属粉末的钢罐被热等静压以形成具有在锭的整个纵向和端表面周围形成的包层的锭组件。 由该方法生产的锭组件易于热加工，而不会对锭进行破坏或检查而显着损坏。

    FREE-MACHINING POWDER METALLURGY LEAD-FREE STEEL ARTICLES AND METHOD OF MAKING SAME
    6.
    发明申请
    FREE-MACHINING POWDER METALLURGY LEAD-FREE STEEL ARTICLES AND METHOD OF MAKING SAME 审中-公开
    免费加工粉末冶金无铅钢铁制品及其制造方法

    公开(公告)号：WO2010029505A3

    公开(公告)日：2010-04-29

    申请号：PCT/IB2009053953

    申请日：2009-09-10

    Applicant: KLEIN AG L ,  DEL CORSO GREGORY J ,  SCHIESS OLIVIER ,  MARECHAL PIERRE H

    Inventor： DEL CORSO GREGORY J ,  SCHIESS OLIVIER ,  MARECHAL PIERRE H

    IPC: B22F3/15 ,  B22F5/12 ,  B22F9/08 ,  C21D8/06 ,  C22C33/02

    CPC classification number: B22F5/12 ,  B22F2003/247 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  C21D8/065 ,  C22C33/0264 ,  C22C33/0271 ,  C22C33/0285 ,  B22F9/082 ,  B22F3/15 ,  B22F3/18 ,  B22F3/20 ,  B22F3/24 ,  B22F2201/10 ,  B22F2201/02

    Abstract: A small diameter, elongated steel article, comprising fully consolidated, prealloyed Pb-free metal powder having a superior machinability is disclosed. The consolidated metal powder has a microstructure that has substantially uniform distribution of fine grains having an ASTM grain size number of not smaller than about 9 when determined in accordance with ASTM Standard Specification E 112. The microstructure of the consolidated metal powder is further characterized by having a plurality of sulfides not larger than about 2 microns (2 µm) in major dimension and a plurality of substantially sphero?dal carbides uniformly distributed throughout the consolidated metal powder that are not greater than about 6 microns (6 µm) in major dimension, both fully geometrically compatible with the ISO Tolerance grade and surface roughness requirements to satisfy. A process for making the elongated steel article is also disclosed.

    Abstract translation: 公开了一种小直径的细长钢制品，其包括具有优异的可加工性的完全固结的预合金化无铅金属粉末。 固结的金属粉末具有根据ASTM标准规范E 112确定时具有ASTM晶粒尺寸数不小于约9的细晶粒的基本上均匀分布的微结构。固结的金属粉末的微结构进一步的特征在于具有 在大尺寸上不大于约2微米（2μm）的多个硫化物和均匀分布在整个金属粉末中的多个基本上球形碳化物，其主要尺寸不大于约6微米（6μm），两者均为 完全几何兼容ISO容差等级和表面粗糙度要求以满足。 还公开了制造细长钢制品的方法。

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