NICKEL BASED ALLOY USEFUL FOR VALVE SEAT INSERTS
    3.
    发明申请
    NICKEL BASED ALLOY USEFUL FOR VALVE SEAT INSERTS 审中-公开
    镍基合金有效用于阀座座

    公开(公告)号:WO2010123552A2

    公开(公告)日:2010-10-28

    申请号:PCT/US2010/001177

    申请日:2010-04-21

    Abstract: Disclosed herein is a nickel based alloy comprising, in weight percentage: carbon from about 0.5 to about 1.5; chromium from about 25 to about 35; tungsten from about 12 to about 18; iron from about 3.5 to about 8.5; molybdenum from about 1 to about 8; manganese up to about 0.50; silicon up to about 1.0; and the balance nickel and incidental impurities. The alloy is suitable for valve seat insert applications in internal combustion engines.

    Abstract translation: 本文公开了一种镍基合金,其重量百分比为约0.5至约1.5的碳; 约25至约35的铬; 约12至约18的钨; 铁从约3.5至约8.5; 约1至约8的钼; 锰高达约0.50; 硅高达约1.0; 余量为镍和杂质。 该合金适用于内燃机中的阀座插入。

    COBALT-RICH WEAR RESISTANT ALLOY AND METHOD OF MAKING AND USE THEREOF

    公开(公告)号:WO2009128900A3

    公开(公告)日:2009-10-22

    申请号:PCT/US2009/002310

    申请日:2009-04-14

    Abstract: A cobalt-rich wear resistant and corrosion resistant alloy comprises in weight %, 0.5 to 1.2% C, 0.6 to 2.1 % Si, 17 to 24% Cr, 27 to 38.5% Fe, 1.4 to 20% W, 3.8 to 9.7% Mo, less than 1 % Ni and balance Co. A preferred cobalt-rich alloy comprises in weight %, 0.5 to 0.9 C, 0.75 to 1.15 % Si, 17.5 to 20.5 Cr, 27.0 to 32.0 Fe, 12.5 to 16.5 W, 6.25 to 8.25 Mo, 0.45 to 1.00 Ni and balance Co. The alloy preferably has a microstructure free of primary carbides and comprises up to about 50% by volume eutectic reaction phases in a solid solution matrix. The solid solution matrix is an αFe-αCo face-centered cubic solution with W, Cr and Mo as solute elements and the eutectic reaction products comprise a (Co 1 Cr) 7 (W 1 Mo) 6 phase and an αFe-αCo phase. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines.

    COBALT-RICH WEAR RESISTANT ALLOY AND METHOD OF MAKING AND USE THEREOF
    5.
    发明申请
    COBALT-RICH WEAR RESISTANT ALLOY AND METHOD OF MAKING AND USE THEREOF 审中-公开
    耐磨合金及其制造和使用方法

    公开(公告)号:WO2009128900A2

    公开(公告)日:2009-10-22

    申请号:PCT/US2009002310

    申请日:2009-04-14

    Abstract: A cobalt-rich wear resistant and corrosion resistant alloy comprises in weight %, 0.5 to 1.2% C, 0.6 to 2.1 % Si, 17 to 24% Cr, 27 to 38.5% Fe, 1.4 to 20% W, 3.8 to 9.7% Mo, less than 1 % Ni and balance Co. A preferred cobalt-rich alloy comprises in weight %, 0.5 to 0.9 C, 0.75 to 1.15 % Si, 17.5 to 20.5 Cr, 27.0 to 32.0 Fe, 12.5 to 16.5 W, 6.25 to 8.25 Mo, 0.45 to 1.00 Ni and balance Co. The alloy preferably has a microstructure free of primary carbides and comprises up to about 50% by volume eutectic reaction phases in a solid solution matrix. The solid solution matrix is an aFe-aCo face-centered cubic solution with W, Cr and Mo as solute elements and the eutectic reaction products comprise a (Co1Cr)7(W1Mo)6 phase and an aFe-aCo phase. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines.

    Abstract translation: 富含钴的耐磨和耐腐蚀合金包括重量百分比为0.5至1.2%的C,0.6至2.1%的Si,17至24%的Cr,27至38.5%的Fe,1.4至20%的W,3.8至9.7%的Mo ,少于1%的Ni和余量的Co。优选的富钴合金包含重量%,0.5至0.9C,0.75至1.15%的Si,17.5至20.5Cr,27.0至32.0Fe,12.5至16.5W,6.25至8.25 Mo,0.45〜1.00Ni和余量Co。合金优选具有不含一次碳化物的微结构,并且在固溶体基体中包含高达约50体积%的共晶反应相。 固溶体基体是一种以Fe,As和Mo为原子的aFe-aCo面心立方溶液,共晶反应产物包含(Co1Cr)7(W1Mo)6相和aFe-aCo相。 该合金可用作内燃机例如柴油发动机的阀座插件。

    SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF
    6.
    发明申请
    SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF 审中-公开
    超级不锈钢及其制造和使用方法

    公开(公告)号:WO2010074710A2

    公开(公告)日:2010-07-01

    申请号:PCT/US2009/006424

    申请日:2009-12-08

    Abstract: A superaustenitic stainless steel comprises in weight %, 0.15 to 0.9 % C, 0.2 to 1.3 % Si, 0 to 0.45 % Mn, 32.5 to 37.5 % Cr, 13.5 to 17.5 % Ni, 3.2 to 5.5 % Mo, 0 to 2 % Nb, 0 to 0.5 % B, 0 to 2 % Zr and 30 to 51 % Fe. In a preferred embodiment, the superaustenitic stainless steel consists essentially of, in weight %, 0.5 to 0.9 % C, 0.2 to 0.5 % Si, 0.2 to 0.4 % Mn, 33.0 to 35.0 % Cr, 15.5 to 17.5 % Ni, 4.0 to 4.5 % Mo, 0.7 to 0.9 % Nb, 0.07 to 0.13 % B, 0 to 0.05 % Zr and 40 to 46 % Fe. The superaustenitic stainless steel is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.

    Abstract translation: 超辉石型不锈钢以重量%计含有0.15〜0.9%的C,0.2〜1.3%的Si,0〜0.45%的Mn,32.5〜37.5%的Cr,13.5〜17.5%的Ni,3.2〜5.5%的Mo,0〜2%的Nb ,0〜0.5%B,0〜2%Zr,30〜51%Fe。 在优选实施方案中,超辉石型不锈钢基本上由以重量%计,0.5%至0.9%的C,0.2至0.5%的Si,0.2至0.4%的Mn,33.0至35.0%的Cr,15.5至17.5%的Ni,4.0至4.5 %Mo,0.7〜0.9%Nb,0.07〜0.13%B,0〜0.05%Zr和40〜46%Fe。 超级奥氏体不锈钢可用于柴油或天然气发动机等内燃机的阀座插件。

    NICKEL BASED ALLOY USEFUL FOR VALVE SEAT INSERTS
    7.
    发明申请
    NICKEL BASED ALLOY USEFUL FOR VALVE SEAT INSERTS 审中-公开
    镍基合金有效用于阀座座

    公开(公告)号:WO2010123552A3

    公开(公告)日:2011-01-27

    申请号:PCT/US2010001177

    申请日:2010-04-21

    Abstract: Disclosed herein is a nickel based alloy comprising, in weight percentage: carbon from about 0.5 to about 1.5; chromium from about 25 to about 35; tungsten from about 12 to about 18; iron from about 3.5 to about 8.5; molybdenum from about 1 to about 8; manganese up to about 0.50; silicon up to about 1.0; and the balance nickel and incidental impurities. The alloy is suitable for valve seat insert applications in internal combustion engines.

    Abstract translation: 本文公开了一种镍基合金,其重量百分比为约0.5至约1.5的碳; 约25至约35的铬; 约12至约18的钨; 铁从约3.5至约8.5; 约1至约8的钼; 锰高达约0.50; 硅高达约1.0; 余量为镍和杂质。 该合金适用于内燃机中的阀座插入。

    SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF
    9.
    发明申请
    SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF 审中-公开
    超高性能不锈钢及其制造和使用方法

    公开(公告)号:WO2010074710A3

    公开(公告)日:2010-09-23

    申请号:PCT/US2009006424

    申请日:2009-12-08

    Abstract: A superaustenitic stainless steel comprises in weight %, 0.15 to 0.9 % C, 0.2 to 1.3 % Si, 0 to 0.45 % Mn, 32.5 to 37.5 % Cr, 13.5 to 17.5 % Ni, 3.2 to 5.5 % Mo, 0 to 2 % Nb, 0 to 0.5 % B, 0 to 2 % Zr and 30 to 51 % Fe. In a preferred embodiment, the superaustenitic stainless steel consists essentially of, in weight %, 0.5 to 0.9 % C, 0.2 to 0.5 % Si, 0.2 to 0.4 % Mn, 33.0 to 35.0 % Cr, 15.5 to 17.5 % Ni, 4.0 to 4.5 % Mo, 0.7 to 0.9 % Nb, 0.07 to 0.13 % B, 0 to 0.05 % Zr and 40 to 46 % Fe. The superaustenitic stainless steel is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.

    Abstract translation: 一种超级奥氏体不锈钢,包含重量%,C:0.15-0.9%,Si:0.2-1.3%,Mn:0-0.45%,Cr:32.5-37.5%,Ni:13.5-17.5%,Mo:3.2-5.5%,Nb:0-2% ,B:0〜0.5%,Zr:0〜2%,Fe:30〜51%。 在一个优选的实施方案中,超级奥氏体不锈钢基本上由以下组成,重量百分比为:C:0.5-0.9%,Si:0.2-0.5%,Mn:0.2-0.4%,Cr:33.0-35.0%,Ni:15.5-17.5%,Ni:4.0-4.5 %Mo,0.7-0.9%Nb,0.07-0.13%B,0-0.05%Zr和40-46%Fe。 超级奥氏体不锈钢适用于柴油机或天然气发动机等内燃机的阀座插入件。

    NICKEL-RICH WEAR RESISTANT ALLOY AND METHOD OF MAKING AND USE THEREOF

    公开(公告)号:WO2008005243A3

    公开(公告)日:2008-01-10

    申请号:PCT/US2007/014840

    申请日:2007-06-27

    Abstract: A nickel-rich wear resistant alloy comprises in weight % 0.5 to 2.5% C, 0.5 to 2 % Si, up to 1% Mn, 20 to 30% Cr, 5 to 15% Mo, 5 to 15% W, 15 to 30% Fe, balance Ni. The alloy can include further alloying constituents such as up to 1.5% each of Ti, Al, Zr, Hf, Ta, V, Nb, Co, Cu, up to 0.5% B and up to 0.5% Mg plus Y. The alloy preferably has a microstructure containing predominantly eutectic reaction phases, fine intermetallic phases and precipitation carbides. For instance, the microstructure may contain Cr. Ni, W rich intermetallic phases and/or the microstructure may contain uniform lamellar type eutectic solidification structures. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines. For a valve seat insert containing up to 1.8% C the microstructure preferably is free of primary dendritic carbides. For a valve seat insert alloy containing over 1.8% C the microstructure preferably contains non-dendritic type primary carbides. For a valve seat insert containing up to 1.5% C the microstructure preferably includes solid solution phases encompassed by eutectic reaction products.

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