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公开(公告)号：US09217187B2
公开(公告)日：2015-12-22
申请号：US13553940
申请日：2012-07-20
申请人： Michael P. Brady , Gail M. Ludtka , Gerard M. Ludtka , Govindarajan Muralidharan , Don M. Nicholson , Orlando Rios , Yukinori Yamamoto
发明人： Michael P. Brady , Gail M. Ludtka , Gerard M. Ludtka , Govindarajan Muralidharan , Don M. Nicholson , Orlando Rios , Yukinori Yamamoto
IPC分类号： C21D1/18 , C22C38/00 , C22C19/03 , C22F1/10 , C21D6/02 , C21D1/26 , C22C30/00 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C1/02
CPC分类号： C21D6/02 , C21D1/18 , C21D1/26 , C21D2201/03 , C21D2211/004 , C21D2281/00 , C22C1/02 , C22C19/03 , C22C30/00 , C22C38/00 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22F1/10
摘要： The method provides heat-resistant chromia- or alumina-forming Fe-, Fe(Ni), Ni(Fe), or Ni-based alloys having improved creep resistance. A precursor is provided containing preselected constituents of a chromia- or alumina-forming Fe-, Fe(Ni), Ni(Fe), or Ni-based alloy, at least one of the constituents for forming a nanoscale precipitate MaXb where M is Cr, Nb, Ti, V, Zr, or Hf, individually and in combination, and X is C, N, O, B, individually and in combination, a=1 to 23 and b=1 to 6. The precursor is annealed at a temperature of 1000-1500° C. for 1-48 h in the presence of a magnetic field of at least 5 Tesla to enhance supersaturation of the MaXb constituents in the annealed precursor. This forms nanoscale MaXb precipitates for improved creep resistance when the alloy is used at service temperatures of 500-1000° C. Alloys having improved creep resistance are also disclosed.
摘要翻译： 该方法提供具有改善的抗蠕变性的耐热氧化铬或氧化铝形成的Fe-，Fe（Ni），Ni（Fe）或Ni基合金。 提供了一种前体，其含有氧化铬或氧化铝形成的Fe-，Fe（Ni），Ni（Fe）或Ni基合金的预选成分，至少一种用于形成纳米尺度沉淀物MaXb的组分，其中M为Cr ，Nb，Ti，V，Zr或Hf组合，X为C，N，O，B，单独且组合为a = 1〜23，b = 1〜6。 温度为1000-1500℃，在至少5特斯拉的磁场存在下1-48小时，以增强退火前体中MaXb组分的过饱和。 当在500-1000℃的使用温度下使用合金时，这形成了纳米尺度的MaXb沉淀物，以提高耐蠕变性。还公开了具有改善的抗蠕变性的合金。
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公开(公告)号：US08431072B2
公开(公告)日：2013-04-30
申请号：US13114745
申请日：2011-05-24
CPC分类号： B22D25/06 , C22C33/04 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/06 , C22C38/44 , C22C38/48 , C22C38/54 , C22C38/58
摘要： An austenitic stainless steel alloy consisting essentially of, in terms of weight percent ranges 0.15-0.5C; 8-37Ni; 10-25Cr; 2.5-5Al; greater than 0.6, up to 2.5 total of at least one element selected from the group consisting of Nb and Ta; up to 3Mo; up to 3Co; up to 1W; up to 3Cu; up to 15Mn; up to 2Si; up to 0.15B; up to 0.05P; up to 1 total of at least one element selected from the group consisting of Y, La, Ce, Hf, and Zr;
摘要翻译： 奥氏体不锈钢合金，其重量百分比基本上在0.15-0.5℃范围内; 8-37Ni; 10-25Cr; 2.5-5Al; 大于0.6，最多2.5个选自Nb和Ta中的至少一种元素; 高达3Mo; 高达3Co 高达1W; 达3Cu; 高达15Mn; 高达2Si; 最高0.15B; 高达0.05P; 最多1个选自Y，La，Ce，Hf和Zr中的至少一种元素; <0.3Ti + V; <0.03N; 并且平衡Fe，其中Fe的重量百分比大于Ni的重量百分比，并且其中所述合金形成包含氧化铝的外部连续刻度，以及稳定的基本上单相的FCC奥氏体基体微观结构，所述奥氏体基体基本上不含铁素体的铁素体 并且基本上不含BCC相。 还公开了制造奥氏体不锈钢合金的方法。
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公开(公告)号：US08815146B2
公开(公告)日：2014-08-26
申请号：US13440639
申请日：2012-04-05
CPC分类号： C22C30/00 , C21D6/004 , C21D2211/001 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/02 , C22C38/06 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
摘要： An austenitic stainless steel alloy, consists essentially of, in weight percent 2.5 to 4 Al; 25 to 35 Ni; 12 to 19 Cr; at least 1, up to 4 total of at least one element selected from the group consisting of Nb and Ta; 0.5 to 3 Ti; less than 0.5 V; 0.1 to 1 of at least on element selected from the group consisting of Zr and Hf; 0.03 to 0.2 C; 0.005 to 0.1 B; and base Fe. The weight percent Fe is greater than the weight percent Ni. The alloy forms an external continuous scale including alumina, and contains coherent precipitates of γ′-Ni3Al, and a stable essentially single phase FCC austenitic matrix microstructure. The austenitic matrix is essentially delta-ferrite-free and essentially BCC-phase-free.
摘要翻译： 奥氏体不锈钢合金基本上由2.5至4重量百分比的Al组成; 25至35镍; 12至19 Cr; 至少1个，至多4个总计选自Nb和Ta的至少一种元素; 0.5〜3 Ti; 小于0.5V; 0.1至1个选自Zr和Hf的至少一种元素; 0.03〜0.2℃; 0.005〜0.1B; 和碱Fe。 Fe的重量百分比大于Ni的重量百分比。 该合金形成包括氧化铝在内的外部连续尺度，并且包含γ'-Ni3Al的相干沉淀物，以及基本稳定的单相FCC奥氏体基体微观结构。 奥氏体基体基本上是不含铁素体的，并且基本上不含BCC相。
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公开(公告)号：US20080152531A1
公开(公告)日：2008-06-26
申请号：US11643735
申请日：2006-12-21
摘要： Cast irons are provided which have no intentional addition of molybdenum (Mo) and which have compositions with additional silicon that provide certain advantages, such as lower cost, higher use temperatures, and increased tensile strength, over conventional Mo-bearing cast irons. In the cast irons, Mo is absent or present only as an impurity element.
摘要翻译： 提供了铸铁，它们没有有意添加钼（Mo），并且具有额外的硅的组合物，与常规的含Mo铸铁相比提供了一些优点，例如较低的成本，较高的使用温度和增加的拉伸强度。 在铸铁中，Mo不存在或仅作为杂质元素存在。
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5.发明申请Cast, heat-resistant austenitic stainless steels having reduced alloying element content 有权具有降低合金元素含量的铸造耐热奥氏体不锈钢公开(公告)号：US20060157161A1
公开(公告)日：2006-07-20
申请号：US11038923
申请日：2005-01-19
摘要： A cast, austenitic steel composed essentially of, expressed in weight percent of the total composition, about 0.4 to about 0.7 C, about 20 to about 30 Cr, about 20 to about 30 Ni, about 0.5 to about 1 Mn, about 0.6 to about 2 Si, about 0.05 to about 1 Nb, about 0.05 to about 1 W, about 0.05 to about 1.0 Mo, balance Fe, the steel being essentially free of Ti and Co, the steel characterized by at least one microstructural component selected from the group consisting of MC, M23C6, and M(C, N).
摘要翻译： 基本上由总组合物的重量百分比表示的铸造奥氏体钢，约0.4至约0.7℃，约20至约30Cr，约20至约30Nin，约0.5至约1M，约0.6至约 2Si，约0.05至约1Nb，约0.05至约1W，约0.05至约1.0Mo，余量为Fe，所述钢基本上不含Ti和Co，所述钢的特征在于至少一种选自以下组分的微结构组分 由M M，M 23 C 6和M（C，N）构成。
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公开(公告)号：US20240167134A1
公开(公告)日：2024-05-23
申请号：US17785854
申请日：2021-06-17
申请人： Dean T. Pierce , Govindarajan Muralidharan , James Allen Haynes , Yong-Ching Chen , Quancang Ma , Howard Savage , Jian Zhou
发明人： Dean T. Pierce , Govindarajan Muralidharan , James Allen Haynes , Yong-Ching Chen , Quancang Ma , Howard Savage , Jian Zhou
摘要： A steel alloy with unique and superior combinations of properties such as elevated temperature strength, oxidation resistance, thermal conductivity and wear resistance. Disclosed embodiments comprise or substantially consist of: C in an amount of 0.2-0.45 weight %; Si in an amount of 0.6-1.1 weight %; Mn in an amount of ≤1.1 weight %; Cr in an amount of 2.5-4.0 weight %; one or both of Mo or W, a combined amount of the Mo or W≤0.9 weight %; Ti in an amount of 0.035-0.14 weight %; V in an amount of 0.18-1.1 weight % and the balance being Fe and usual impurities.
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公开(公告)号：US20070182577A1
公开(公告)日：2007-08-09
申请号：US11346867
申请日：2006-02-03
CPC分类号： G08B13/1663 , G08B31/00
摘要： A low-power shock sensing system includes at least one shock sensor physically coupled to a chemical storage tank to be monitored for impacts, and an RF transmitter which is in a low-power idle state in the absence of a triggering signal. The system includes interference circuitry including or activated by the shock sensor, wherein an output of the interface circuitry is coupled to an input of the RF transmitter. The interface circuitry triggers the RF transmitting with the triggering signal to transmit an alarm message to at least one remote location when the sensor senses a shock greater than a predetermined threshold. In one embodiment the shock sensor is a shock switch which provides an open and a closed state, the open state being a low power idle state.
摘要翻译： 低功率冲击感测系统包括至少一个物理耦合到要监控冲击的化学品储罐的冲击传感器，以及在没有触发信号的情况下处于低功率空闲状态的RF发射器。 该系统包括干扰电路，包括由冲击传感器激活的干扰电路，其中接口电路的输出耦合到RF发射器的输入端。 当传感器感测到大于预定阈值的冲击时，接口电路触发具有触发信号的RF发射，以将报警消息发送到至少一个远程位置。 在一个实施例中，冲击传感器是提供打开和关闭状态的冲击开关，打开状态是低功率空闲状态。
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公开(公告)号：US09216445B2
公开(公告)日：2015-12-22
申请号：US13197297
申请日：2011-08-03
CPC分类号： B21B3/00 , B21B1/08 , B21B45/004 , B21B2265/24
摘要： A machine for asymmetric rolling of a work-piece includes pair of rollers disposed in an arrangement to apply opposing, asymmetric rolling forces to roll a work-piece therebetween, wherein a surface of the work-piece is rolled faster than an opposite surface of the work-piece; and an exit constraint die rigidly disposed adjacent an exit side of the pair of rollers so that, as the work-piece exits the pair of rollers, the work-piece contacts the exit constraint die to constrain curling of the work-piece.
摘要翻译： 一种用于工件的非对称轧制的机器包括一对辊，其布置成施加相对的不对称的轧制力以在其间滚动工件，其中，所述工件的表面比所述工件的相对表面滚动得更快 工件 以及邻近所述一对辊的出口侧刚性地设置的出口约束模，使得当所述工件离开所述一对辊时，所述工件接触所述出口约束模以限制所述工件的卷曲。
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公开(公告)号：US20130031944A1
公开(公告)日：2013-02-07
申请号：US13197297
申请日：2011-08-03
CPC分类号： B21B3/00 , B21B1/08 , B21B45/004 , B21B2265/24
摘要： A machine for asymmetric rolling of a work-piece includes pair of rollers disposed in an arrangement to apply opposing, asymmetric rolling forces to roll a work-piece therebetween, wherein a surface of the work-piece is rolled faster than an opposite surface of the work-piece; and an exit constraint die rigidly disposed adjacent an exit side of the pair of rollers so that, as the work-piece exits the pair of rollers, the work-piece contacts the exit constraint die to constrain curling of the work-piece.
摘要翻译： 一种用于工件的不对称轧制的机器包括一对辊，其布置成施加相对的不对称的轧制力以在其间滚动工件，其中，所述工件的表面比所述工件的相对表面滚动得更快 工件 以及邻近所述一对辊的出口侧刚性地设置的出口约束模，使得当所述工件离开所述一对辊时，所述工件接触所述出口约束模以限制所述工件的卷曲。
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10.发明申请公开(公告)号：US20100303669A1
公开(公告)日：2010-12-02
申请号：US12839844
申请日：2010-07-20
摘要： The present invention addresses the need for new austenitic steel compositions with higher creep strength and higher upper temperatures. The present invention also discloses a methodology for the development of new austenitic steel compositions with higher creep strength and higher upper temperatures.
摘要翻译： 本发明涉及对具有较高蠕变强度和较高上限温度的新型奥氏体钢组合物的需求。 本发明还公开了开发具有较高蠕变强度和较高上限温度的新奥氏体钢组合物的方法。
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