Ferritic stainless steel cast iron, cast part using the ferritic stainless steel cast iron, and process for producing the cast part
    12.
    发明授权
    Ferritic stainless steel cast iron, cast part using the ferritic stainless steel cast iron, and process for producing the cast part 有权
    铁素体不锈钢铸铁,使用铁素体不锈钢铸铁的铸件,以及铸造件的制造方法

    公开(公告)号:US07914732B2

    公开(公告)日:2011-03-29

    申请号:US11709863

    申请日:2007-02-23

    IPC分类号: C22C38/22 C22C38/24 C22C38/26

    摘要: The present invention provides: a ferritic stainless steel cast iron including: Fe as a main component; C: 0.20 to 0.40 mass %; Si: 1.00 to 3.00 mass %; Mn: 0.30 to 3.00 mass %; Cr: 12.0 to 30.0 mass %; and one of Nb and V, or both of Nb and V in total: 1.0 to 5.0 mass %, the ferritic stainless steel cast iron satisfying the following formula (1): 1400≦1562.3−{133WC+14WSi+5WMn+10(WNb+WV)}≦1480  (1) wherein, WC (mass %), WSi (mass %), WMn (mass %), WCr (mass %), WNb (mass %), WV (mass %) and WCu (mass %) are contents of C, Si, Mn, Cr, Nb, V and Cu, respectively; a process for producing a cast part from the ferritic cast steel; and the cast part.

    摘要翻译: 本发明提供:铁素体不锈钢铸铁,其以Fe为主要成分; C:0.20〜0.40质量% Si:1.00〜3.00质量% Mn:0.30〜3.00质量% Cr:12.0〜30.0质量% Nb和V中的一种,或Nb和V中的一种总计为1.0〜5.0质量%,满足下式(1)的铁素体系不锈钢铸铁:1400≦̸ 1562.3- {133WC + 14WSi + 5WMn + 10(WNb + WV)}≦̸ 1480(1)其中,WC(质量%),WSi(质量%),WMn(质量%),WCr(质量%),WNb(质量%),WV(质量% 质量%)分别为C,Si,Mn,Cr,Nb,V和Cu的含量; 从铁素体铸钢制造铸造件的方法; 和铸件。

    Ni-based super alloy
    13.
    发明申请
    Ni-based super alloy 审中-公开
    镍基超合金

    公开(公告)号:US20070221298A1

    公开(公告)日:2007-09-27

    申请号:US11723546

    申请日:2007-03-20

    IPC分类号: C22C19/05

    CPC分类号: C22C19/056 C22C19/055

    摘要: The present invention provides a Ni-based super alloy including, by mass %, C: 0.01 to 0.15%; Si: 1% or less; Mn: 1% or less; P: 0.02% or less; S: 0.01% or less; Co: less than 0.10%; Cr: 16 to 22%; Mo: 4 to 10%; W: 5% or less; Al: 1.2 to 2.5%; Ti: 2.4 to 4%; B: 0.001 to 0.05%; Zr: 0.01 to 0.5%; Fe: 1% or less; and a balance of Ni and inevitable impurities.

    摘要翻译: 本发明提供以质量%计含有C:0.01〜0.15%的Ni系超合金。 Si:1%以下; Mn:1%以下; P:0.02%以下; S:0.01%以下; Co:小于0.10%; Cr:16〜22% Mo:4〜10% W:5%以下; Al:1.2〜2.5% Ti:2.4〜4% B:0.001〜0.05% Zr:0.01〜0.5% Fe:1%以下; 和Ni和不可避免的杂质的平衡。

    Heat resistant alloy for exhaust valves durable at 900°C and exhaust valves made of the alloy
    14.
    发明申请
    Heat resistant alloy for exhaust valves durable at 900°C and exhaust valves made of the alloy 审中-公开
    900℃耐用的排气阀耐热合金和由合金制成的排气阀

    公开(公告)号:US20060157171A1

    公开(公告)日:2006-07-20

    申请号:US11334583

    申请日:2006-01-19

    IPC分类号: C22C19/05 C22F1/10

    摘要: An exhaust valve for automobile engines, which is durable at such a high temperature as 900° C., and exhibits high fatigue strength and high oxidation resistance is disclosed. The exhaust valve is made of a Ni-based alloy consisting essentially of, by weight %. C: 0.01-0.15%, Si: up to 2.0%, Mn: up to 1.0%, P: up to 0.02%, S: up to 0.01%, Co: 0.1-15%, Cr: 15-25%, one or two of Mo: 0.1-10% and W: 0.1-5% in such amount that Mo+½ W; 3-10%, Al: 1.0-3.0%, Ti: 2.0-3.5%, provided that, by atomic %, Al+Ti: 6.3-8.5% and Ti/Al ratio: 0.4-0.8, and further, by weight %, B: 0.001-0.01%, Fe: up to 3%, and the balance of Ni and inevitable impurities by hot forging to give the form of an exhaust valve and subjecting to solid solution at 1000-1200° C. and aging at 700-950° C.

    摘要翻译: 公开了一种在900℃这样高的温度下耐用的汽车发动机用排气阀,具有高的疲劳强度和高抗氧化性。 排气阀由基本上由重量%组成的Ni基合金制成。 C:0.01〜0.15%,Si:2.0%以下,Mn:1.0%以下,P:0.02%以下,S:0.01%以下,Co:0.1〜15%,Cr:15〜25% 或Mo:0.1-10%和W:0.1-5%中的两种:Mo + 1 / W; 3-10%,Al:1.0-3.0%,Ti:2.0-3.5%,条件是原子%为Al + Ti:6.3-8.5%,Ti / Al比为0.4-0.8,进一步按重量%计, ,B:0.001-0.01%,Fe:高达3%,通过热锻造得到Ni和不可避免的杂质的余量,得到排气阀的形式,并在1000-1200℃下进行固溶,并在700℃老化 -950℃

    Heat resisting alloy for exhaust valve and method for producing the
exhaust valve
    17.
    发明授权
    Heat resisting alloy for exhaust valve and method for producing the exhaust valve 失效
    排气阀用耐热合金及排气阀的制造方法

    公开(公告)号:US5951789A

    公开(公告)日:1999-09-14

    申请号:US955753

    申请日:1997-10-22

    摘要: A heat resisting alloy for use in exhaust valves low in price and excellent in the cold workability and possible to be formed into valve shapes through the cold or warm working, which consists by weight percentage of C: 0.01.about.0.1%, Si.ltoreq.2%, Mn.ltoreq.2%, Cr: 12.about.25%, Nb+Ta: 0.2.about.2.0%, Ti.ltoreq.3.5%, Al: 0.5.about.3.0%, Ni: 25.about.45%, Cu: 0.1.about.5.0%, optionally at least one element selected from W.ltoreq.3%, Mo.ltoreq.3%, and V.ltoreq.1% with (1/2W+Mo+V).ltoreq.3%, Co.ltoreq.5% with Ni+Co: 25.about.45%, Ca+Mg: 0.001.about.0.01%, one or both of B.ltoreq.0.01% and Zr: 0.001.about.0.1%, and the balance of Fe and incidental impurities.

    摘要翻译: 用于低价格和优异的冷加工性的排气门的耐热合金,并且可以通过冷或热加工形成阀门形状,其重量百分比为C:0.01,0.1%,Si = 2%,Mn <2%,Cr:12差异25%,Nb + Ta:0.2差异2.0%,Ti <3.5%,Al:0.5差异3.0%,Ni:25差异45%,Cu:0.1 差异5.0%,可选地,选自W 3%,Mo 3%和V 1%中的至少一种元素,其中(+ E,fra 1/2 + EE W + Mo + V) / = 3%,Ni + Co:Co = 25的Co <5%差异45%,Ca + Mg:0.001差异0.01%,B≤0.01%和Zr:0.001分别为0.1%或0.1% Fe和杂质的平衡。

    Method for producing low thermal expansion Ni-base superalloy
    20.
    发明授权
    Method for producing low thermal expansion Ni-base superalloy 有权
    生产低热膨胀Ni基超级合金的方法

    公开(公告)号:US08083874B2

    公开(公告)日:2011-12-27

    申请号:US11115159

    申请日:2005-04-27

    IPC分类号: C22F1/10 C22C19/05

    摘要: A method for producing a low thermal expansion Ni-base superalloy including the steps of subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C. and subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour. The method also including the steps of subjecting the alloy to a first aging treatment for precipitating y′ phase under the conditions of at a temperature of 720 to 900° C. and for 1 to 50 hours, and subjecting the alloy to a second aging treatment for precipitating A2B phase under the conditions of at a temperature of 550 to 700° C. and for 5 to 100 hours.

    摘要翻译: 一种生产低热膨胀Ni基超合金的方法,包括以下步骤:在1000-1200℃的温度下对合金进行固溶热处理,并对合金进行碳化物稳定化处理 在不低于850℃,小于1000℃的温度和1〜50小时的条件下,在晶界上凝集的碳化物并使碳化物稳定,或者在晶界上形成碳化碳的碳化物稳定化处理 并且通过从固溶热处理中的温度冷却至850℃,以每小时100℃或更低的冷却速度来稳定碳化物。 该方法还包括以下步骤:在720至900℃的温度和1至50小时的条件下对合金进行第一时效处理以沉淀y相,并对合金进行第二时效处理 用于在550-700℃的温度和5-100小时的条件下沉淀A2B相。