公开(公告)号：US20190237229A1

公开(公告)日：2019-08-01

申请号：US16260715

申请日：2019-01-29

申请人： TDK CORPORATION

发明人： Kazuhiro YOSHIDOME ,  Hiroyuki MATSUMOTO ,  Kenji HORINO ,  Akito HASEGAWA ,  Syota GOTO ,  Masakazu HOSONO ,  Hajime AMANO ,  Isao NAKAHATA

IPC分类号： H01F1/147 ,  C22C38/12 ,  C22C38/00 ,  B22D23/00 ,  C21D9/52 ,  C21D6/00

CPC分类号： H01F1/14733 ,  B22D23/003 ,  B22F1/00 ,  B22F3/00 ,  C21D1/26 ,  C21D1/30 ,  C21D6/00 ,  C21D6/001 ,  C21D6/007 ,  C21D6/008 ,  C21D8/1255 ,  C21D9/46 ,  C21D9/52 ,  C21D2201/03 ,  C22C33/02 ,  C22C33/0214 ,  C22C33/0257 ,  C22C33/0264 ,  C22C33/0271 ,  C22C33/0278 ,  C22C33/0285 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/105 ,  C22C38/12 ,  C22C38/16 ,  C22C38/40 ,  C22C38/52 ,  C22C45/008 ,  C22C45/02 ,  C22C45/04 ,  C22C2200/02 ,  C22C2200/04 ,  C22C2202/02 ,  H01F1/147 ,  H01F1/14716 ,  H01F1/14766 ,  H01F1/14775 ,  H01F1/14791 ,  H01F1/15308 ,  H01F1/15333

摘要： A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.

公开(公告)号：US10066278B2

公开(公告)日：2018-09-04

申请号：US14776861

申请日：2014-03-17

申请人： WAYNE STATE UNIVERSITY

发明人： Susil K. Putatunda

IPC分类号： C21D5/00 ,  C22C37/10 ,  C22C33/08 ,  C21D1/19 ,  C21D1/20 ,  C21D1/00

CPC分类号： C22C37/10 ,  C21D1/00 ,  C21D1/19 ,  C21D1/20 ,  C21D5/00 ,  C21D2201/03 ,  C21D2211/002 ,  C22C33/08

摘要： A method for forming an austempered iron composition with a nanoscale microstructure includes a step of heating an iron-carbon-silicon alloy with silicon to a first temperature that is lower than A1 for the iron-carbon-silicon alloy. The iron-carbon-silicon alloy is then adiabatically deformed such that the temperature of the iron-carbon-silicon alloy rises to a second temperature which is sufficient to form proeutectoid ferrite and austenite. The iron-carbon-silicon alloy is cooled to a first austempering temperature. The iron-carbon-silicon alloy is then heated to a second austempering temperature that is greater than the first austempering temperature to form a dual phase microstructure. Characteristically, the dual phase microstructure includes proeutectoid ferrite and ausferrite.

公开(公告)号：US09850562B2

公开(公告)日：2017-12-26

申请号：US15054446

申请日：2016-02-26

申请人： TOKIN CORPORATION ,  Tohoku Magnet Institute Co., Ltd

发明人： Akiri Urata ,  Yasunobu Yamada ,  Hiroyuki Matsumoto ,  Shigeyoshi Yoshida ,  Akihiro Makino

IPC分类号： C22C45/02 ,  C21D6/00 ,  C22C33/00 ,  H01F1/153 ,  B22F1/00

CPC分类号： C22C45/02 ,  B22F1/0044 ,  B22F1/0048 ,  C21D6/00 ,  C21D2201/03 ,  C22C33/003 ,  H01F1/15308 ,  H01F1/15333

摘要： An Fe-based nano-crystalline alloy formed from an alloy composition of (FeE)(100-X-Y-Z)BXPYCuZ having an amorphous phase as a main phase, wherein 79≦100-X-Y-Z≦86 atomic %, 4≦X≦9 atomic %, 1≦Y≦10 atomic %, and 0.5≦Z

公开(公告)号：US20170365384A1

公开(公告)日：2017-12-21

申请号：US15617510

申请日：2017-06-08

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Koichi Hirota ,  Tetsuya Kume ,  Masayuki Kamata

IPC分类号： H01F1/059 ,  B22F3/16 ,  C22C38/14 ,  C22C38/10 ,  C21D6/00 ,  C22C38/02 ,  C22C38/00 ,  C22C38/16 ,  B22F3/24 ,  H01F41/02 ,  C22C38/06

CPC分类号： H01F1/059 ,  B22F3/16 ,  B22F3/24 ,  B22F2003/248 ,  B22F2301/355 ,  C21D6/007 ,  C21D6/008 ,  C21D2201/03 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0273

摘要： An R—Fe—B base sintered magnet is provided consisting essentially of R (which is at least two rare earth elements and essentially contains Nd and Pr), M1 which is at least two of Si, Al, Mn, Ni, Cu, Zn, Ga, Ge, Pd, Ag, Cd, In, Sn, Sb, Pt, Au, Hg, Pb, and Bi, M2 which is at least one of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W, boron, and the balance of Fe, and containing an intermetallic compound R2(Fe,(Co))14B as a main phase. The magnet contains an R—Fe(Co)-M1 phase as a grain boundary phase, the R—Fe(Co)-M1 phase contains A phase which is crystalline with crystallites of at least 10 nm formed at grain boundary triple junctions, and B phase which is amorphous and/or nanocrystalline with crystallites of less than 10 nm formed at intergranular grain boundaries and optionally grain boundary triple junctions.

公开(公告)号：US09728312B2

公开(公告)日：2017-08-08

申请号：US14354631

申请日：2012-11-09

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Masahiro Fujikura ,  Yoshiyuki Ushigami ,  Tesshu Murakawa ,  Shinichi Kanao ,  Makoto Atake ,  Takeru Ichie ,  Kojiro Hori

IPC分类号： H01F1/147 ,  C22C38/00 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16 ,  C22C38/02 ,  C22C38/04 ,  C21D8/02 ,  C21D8/12

CPC分类号： C21D8/0226 ,  B21B2001/225 ,  C21D8/0263 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1272 ,  C21D2201/03 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/14775 ,  H01F1/14791 ,  H01F1/16

摘要： A non-oriented electrical steel sheet containing: in mass %, C: 0.005% or less; Si: 0.1% to 2.0%; Mn: 0.05% to 0.6%; P: 0.100% or less; and Al: 0.5% or less, in which 10 pieces/μm3 or less in number density of non-magnetic precipitate AlN having an average diameter of 10 nm to 200 nm are contained, and an average magnetic flux density B50 in a rolling direction and in a direction perpendicular to rolling is 1.75 T or more. This non-oriented electrical steel sheet can be manufactured by two methods of a method of performing hot rolling annealing at a temperature of 750° C. to an Ac1 transformation point and a method of setting a coil winding temperature to 780° C. or higher and performing self annealing.

公开(公告)号：US20160298205A1

公开(公告)日：2016-10-13

申请号：US15094740

申请日：2016-04-08

申请人： California Institute of Technology

发明人： William L. Johnson ,  Marios D. Demetriou ,  Choong Paul Kim ,  Joseph P. Schramm

IPC分类号： C21D7/13 ,  C22F1/14 ,  C21D1/38 ,  C22C45/00 ,  C22C45/02 ,  C22F1/18 ,  C22C45/10

CPC分类号： C21D7/13 ,  B21J9/08 ,  C21D1/34 ,  C21D1/38 ,  C21D1/40 ,  C21D2201/03 ,  C22C45/00 ,  C22C45/003 ,  C22C45/02 ,  C22C45/10 ,  C22F1/00 ,  C22F1/14 ,  C22F1/186 ,  H05B3/0004

摘要： An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time frame of Less than 1 second.

摘要翻译： 提供了使用快速电容器放电形成（RCDF）工具将金属玻璃均匀地加热，流变软化和热塑性地形成网状的装置和方法。 RCDF方法利用电容器中存储的电能的放电，均匀且快速地将金属玻璃合金的样品或电荷加热至非晶材料的玻璃化转变温度与合金的平衡熔点之间的预定“工艺温度” 在几毫秒或更短的时间尺度。 一旦样品被均匀加热，使得整个样品块具有足够低的工艺粘度，它可以通过任何数量的技术成型为高品质的非晶块状物品，包括例如注射成型，动态锻造，冲压锻造和吹塑 在不到1秒的时间内。

公开(公告)号：US20160258033A1

公开(公告)日：2016-09-08

申请号：US14411102

申请日：2014-08-01

申请人： CITY UNIVERSITY OF HONG KONG

发明人： Jian LU ,  Phu Son MAI ,  Chun Sheng WEN

IPC分类号： C21D7/06

CPC分类号： C21D7/06 ,  C21D10/00 ,  C21D2201/03 ,  C21D2211/00 ,  C21D2221/00 ,  C21D2261/00

摘要： The present invention is about the design and manufacturing method of constructing nano-structured lattices. The design of the four periodic two-dimensional lattices (hexagonal, triangulated, square and Kagome) is described; and the process of making nano-structured lattices is outlined in the present invention.

公开(公告)号：US20160194201A1

公开(公告)日：2016-07-07

申请号：US14917142

申请日：2013-12-20

申请人： SOUTH CHINA UNIVERSITY OF TECHNOLOGY

发明人： Min ZHU ,  Huaijun LIN ,  Liuzhang OUYANG ,  Hui WANG ,  Jiangwen LIU ,  Weihua WANG ,  Deqian ZHAO

IPC分类号： C01B3/00 ,  B22F9/04 ,  B22F9/00 ,  C22C1/00 ,  C22C45/00

CPC分类号： C01B3/0057 ,  B22F9/008 ,  B22F9/04 ,  B22F2301/058 ,  B22F2301/45 ,  C01B3/0031 ,  C01B3/0078 ,  C21D2201/03 ,  C22C1/002 ,  C22C23/00 ,  C22C23/06 ,  C22C45/00 ,  C22C45/005 ,  C22F1/06 ,  Y02E60/327

摘要： A method for preparing a magnesium-based hydrogen storage material, includes: a Mg—Ce—Ni family amorphous alloy is prepared by a rapid cooling process; the amorphous alloy is pulverized, so as to obtain a amorphous powder; the amorphous alloy is activated, so as to obtain a MgH2—Mg2NiH4—CeH2.73 family nanocrystalline composite; the abovementioned composite is carried out a hydrogen absorption and desorption cycle, then the composite is placed in a pure Ar atmosphere for passivation, finally, the passivated composite is oxidized, so as to obtain a MgH2—Mg2NiH4—CeH2.73—CeO2 family nanocrystalline composite.

摘要翻译： 一种制备镁基储氢材料的方法，包括：通过快速冷却方法制备Mg-Ce-Ni族非晶态合金; 将非晶合金粉碎，得到无定形粉末; 激活非晶合金，从而获得MgH2-Mg2NiH4-CeH2.73族纳米晶复合材料; 上述复合物进行吸氢和解吸循环，然后将复合物置于纯Ar气氛中进行钝化，最后钝化复合材料被氧化，从而获得MgH2-Mg2NiH4-CeH2.73-CeO2族纳米晶体 综合。

公开(公告)号：US20160027566A1

公开(公告)日：2016-01-28

申请号：US14873349

申请日：2015-10-02

申请人： HITACHI METALS, LTD.

发明人： Motoki OHTA ,  Yoshihito YOSHIZAWA ,  Taku MIYAMOTO ,  Toshio MIHARA

IPC分类号： H01F1/153 ,  H01F41/02 ,  C22C45/02 ,  C21D6/00 ,  C21D1/18

CPC分类号： H01F1/15308 ,  C21D1/18 ,  C21D6/001 ,  C21D6/005 ,  C21D6/008 ,  C21D8/1211 ,  C21D2201/03 ,  C21D2211/004 ,  C22C38/00 ,  C22C45/02 ,  H01F1/15333 ,  H01F1/15341 ,  H01F41/02

摘要： A primary ultrafine-crystalline alloy having a composition represented by the general formula: Fe100-x-y-zAxByXz, wherein A is Cu and/or Au, X is at least one element selected from the group consisting of Si, S, C, P, Al, Ge, Ga and Be, and x, y and z are numbers (by atomic %) meeting the conditions of 0

摘要翻译： 具有由通式Fe100-xy-zAxByXz表示的组成的初级超细晶合金，其中A是Cu和/或Au，X是选自Si，S，C，P， Al，Ge，Ga和Be，x，y和z是满足条件0

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。