公开(公告)号：US12227823B2

公开(公告)日：2025-02-18

申请号：US16680942

申请日：2019-11-12

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Hiroki Oka ,  Sachiyo Matsuura ,  Chiaki Hatsuta ,  Chikao Ikenaga ,  Hideyuki Okamoto ,  Masato Ushikusa

IPC: C22C38/10 ,  B21B1/22 ,  C21D6/00 ,  C21D8/02 ,  C21D9/46 ,  C22C38/08 ,  C23C2/26 ,  C23C14/04 ,  C23C14/24 ,  C25D1/04 ,  C25D3/56 ,  G03F7/00 ,  G03F7/20 ,  H10K50/11 ,  H10K59/00 ,  H10K71/00 ,  H10K71/16 ,  H10K77/10

Abstract: A metal plate used for manufacturing a deposition mask has a thickness of equal to or less than 30 μm. An average cross-sectional area of the crystals grains on a cross section of the metal plate is from 0.5 μm2 to 50 μm2. The average cross-sectional area of crystal grains is calculated by analyzing measurement results obtained by an EBSD method, the measuring results being analyzed by an area method under conditions where a portion with a difference in crystal orientation of 5 degrees or more is recognized as a crystal grain boundary.

公开(公告)号：US20250054664A1

公开(公告)日：2025-02-13

申请号：US18718520

申请日：2022-12-12

Applicant: National Institute for Materials Science

Inventor： Xin TANG ,  Hossein SEPEHRI AMIN ,  Tadakatsu OHKUBO ,  Kazuhiro HONO

IPC: H01F1/057 ,  C22C38/00 ,  C22C38/10 ,  H02K1/02

Abstract: This hot-deformed R—Fe—B magnet for a variable-magnetic-force motor is an R2—Fe14—B (R is at least one rare earth element selected from among Nd, La, Ce, and Y)-based hot-deformed magnet, including, in atom %, 12.2% or more and 14.5% or less of R2(Nd1-x-y-zLaxCeyYz), where (0.0≤x≤0.2, 0.0≤y+z≤0.3), 5% or more and 6.5% or less of B, 0.0% or more and 5.0 or less of Co, and 0.0% or more and 1.0 or less of Ga, with the balance being made up of Fe and inevitable impurities.

公开(公告)号：US12195831B2

公开(公告)日：2025-01-14

申请号：US17774370

申请日：2020-11-13

Applicant: NIPPON STEEL CORPORATION

Inventor： Tesshu Murakawa ,  Miho Tomita ,  Hiroshi Fujimura ,  Satoshi Kano

IPC: C22C38/16 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10

Abstract: What is provided is a non-oriented electrical steel sheet having a chemical composition in which, by mass %, C: 0.010% or less, Si: 1.50% to 4.00%, sol. Al: 0.0001% to 1.0%, S: 0.010% or less, N: 0.010% or less, one or a plurality of elements selected from the group consisting of Mn, Ni, Co, Pt, Pb, Cu and Au: 2.50% to 5.00% in total are contained and a remainder includes Fe and impurities, in which a sheet thickness is 0.50 mm or less, and, in an arbitrary cross section, when an area ratio of {100} crystal grains is indicated by Sac, an area ratio of {110} crystal grains is indicated by Sag, and an area ratio of the {100} crystal grains in a region of up to 20% from a side where a KAM value is high is indicated by Sbc, Sac>Sbc>Sag and 0.05>Sag are satisfied.

公开(公告)号：US12186809B2

公开(公告)日：2025-01-07

申请号：US18405157

申请日：2024-01-05

Applicant: UT-Battelle, LLC

Inventor： Rishi R. Pillai ,  Soumya Nag ,  Thomas Feldhausen

IPC: B22F10/28 ,  B22F7/02 ,  B22F10/00 ,  B22F10/25 ,  B32B5/14 ,  B32B15/01 ,  B32B15/04 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C1/04 ,  C22C19/05 ,  C22C30/00 ,  C22C30/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/58

Abstract: A compositionally graded alloy construction for separating a low oxygen content corrosive environment from a high oxygen content oxidizing environment includes a wall having a wall thickness and a first surface segment for contacting the low oxygen content corrosive environment, and a second surface segment for contacting the high oxygen content oxidizing environment. The alloy comprises, in weight percent: 0 to 5 Al; 5 to 30 Cr; 0 to 20 Co; 0 to 70 Fe; 0 to 2 Nb; 0 to 2 Ta; 0 to 3 Ti; 0 to 1 Si; 0 to 1 V; 0 to 2 Mn; 0 to 5 Cu; 0 to 30 Mo; 0 to 30 W; 0 to 0.1 P; 0 to 1 Zr; 0 to 1 Hf; 0 to 0.1 Y; 0.05 to 0.5 C; 0 to 0.1 N; and balance Ni.

公开(公告)号：US12173389B2

公开(公告)日：2024-12-24

申请号：US17441441

申请日：2020-03-13

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Kodai Miura ,  Toshiyuki Sawada ,  Ryohei Hosomi

IPC: C22C38/10 ,  B22F1/00 ,  B22F1/068 ,  B22F1/10 ,  B22F1/142 ,  C22C38/06 ,  C22C38/16 ,  H01F1/147

Abstract: Provided is an alloy powder capable of obtaining a magnetic member therefrom in which the frequency FR is extremely high. The powder for the magnetic member is composed of a plurality of flaky particles. These flaky particles are composed of an Fe-based alloy including: 6.5% by mass or more and 32.0% by mass or less of Ni; 6.0% by mass or more and 14.0% by mass or less of Al; 0% by mass or more and 17.0% by mass or less of Co; and 0% by mass or more and 7.0% by mass or less of Cu; the balance being Fe and unavoidable impurities. The average thickness Tav of this powder is 3.0 μm or less. The saturation magnetization Ms of this powder is 0.9 T or more. The coercive force iHc of this powder is 16 kA/m or more. This Fe-based alloy has a structure resulting from spinodal decomposition.

公开(公告)号：US20240383032A1

公开(公告)日：2024-11-21

申请号：US18688119

申请日：2023-03-01

Applicant: PROTERIAL, LTD.

Inventor： Yuri ITO ,  Shuho KOSEKI ,  Kousuke KUWABARA ,  Shinya OKAMOTO

IPC: B22C9/06 ,  B22F10/28 ,  B22F10/62 ,  B23K26/342 ,  B23K101/34 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14

Abstract: This invention provides a composite material that is durable in a hot environment and easily produced. The composite material according to the invention has an overlaid part comprising high-melting-point metal in at least a part on the surface of a low-melting-point alloy member having a melting point of 1600° C. or lower. The overlaid part comprising high-melting-point metal comprises high-melting-point metal particles comprising high-melting-point metal elements having a melting point of 2400° C. or higher scattered therein, and 40% or more of the high-melting-point metal particles has a roundness of 0.7 or higher. The low-melting-point alloy member comprises one type of a low-melting-point alloy selected from among a Fe-based alloy, a Ni-based alloy, a Co-based alloy, a Ti-based alloy, a Cr-based alloy, and a high-entropy alloy and the high-melting-point metal particles comprise at least one type of high-melting-point metal element selected from among W, Ta, Mo, and Nb.

公开(公告)号：US20240352552A1

公开(公告)日：2024-10-24

申请号：US18685815

申请日：2022-04-20

Applicant: Cleveland-Cliffs Steel Properties Inc. ,  JFE Steel Corporation

Inventor： Amrinder Singh Gill ,  Grant Aaron Thomas ,  Junya Tobata ,  Shigehiro Takajo ,  Yuki Toji

IPC: C21D9/46 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/20 ,  C22C38/38 ,  C22C38/60

CPC classification number: C21D9/46 ,  C21D1/18 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0221 ,  C21D8/0247 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/20 ,  C22C38/38 ,  C22C38/60 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008

Abstract: A steel sheet has a chemical composition containing a predetermined amount of C, Si, Mn, Cu, P, S, Al, and N, and optionally a predetermined amount of one or more selected from the group consisting of Ti, B, Nb, Cr, V, Mo, Ni, As, Sb, Sn, Ta, Ca, Mg, Zn, Co, Zr, and REM, with the balance being Fe and inevitable impurities; a microstructure comprising, in volume fraction, tempered martensite: 90% or more, retained austenite: 1% to 7%, one or both of bainitic ferrite and fresh martensite: 3% to 9% in total, and ferrite: 0% to 5%, where the retained austenite has a carbon concentration of 0.35% or more; a tensile strength TS of 1470 MPa to 1650 MPa, and a yield strength YS of 1100 MPa or more.

公开(公告)号：US12116655B2

公开(公告)日：2024-10-15

申请号：US17554239

申请日：2021-12-17

Applicant: Vacuumschmelze GmbH & Co. KG

Inventor： Niklas Volbers ,  Johannes Tenbrink ,  Jan Frederik Fohr

IPC: C21D8/12 ,  C22C38/02 ,  C22C38/10 ,  C22C38/12 ,  C22C38/18 ,  C23C28/04

CPC classification number: C22C38/10 ,  C21D8/1272 ,  C21D8/1283 ,  C22C38/02 ,  C22C38/12 ,  C22C38/18 ,  C23C28/042 ,  C21D2201/05 ,  C22C2202/02

Abstract: A soft magnetic alloy comprising 2 wt %≤Co≤30 wt %, 0.3 wt %≤V≤5.0 wt % and iron is provided. The soft magnetic alloy has a area proportion of a {111} texture of no more than 13%, preferably no more than 6%, including grains with a tilt of up to +/−10°, or preferably of up to +/−15°, when compared to the nominal crystal orientation.

公开(公告)号：US20240331898A1

公开(公告)日：2024-10-03

申请号：US18577502

申请日：2022-07-07

Applicant: YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD. ,  JIANGHUA ZHENGHAI MINMETALS ADVANCED MATERIALS CO., LTD.

Inventor： Zhiqiang LI ,  Yunying JIANG ,  Lei LIU ,  Zhongxin AN ,  Yuhao DONG

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/248 ,  B22F2201/10 ,  B22F2202/05 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: A corrosion-resistant and high-performance sintered neodymium-iron-boron magnet, a preparation method therefor, and a use thereof are provided. The sintered neodymium-iron-boron magnet is prepared by pulverizing, forming, and sintering. The sintered neodymium-iron-boron magnet contains: 28.5 wt % to 32.5 wt % of R; 0.88 wt % to 0.94 wt % of B; 0.1 wt % to 0.3 wt % of Ga; 1.0 wt % to 3.0 wt % of Co; and 400 ppm to 1000 ppm of O. The sintered neodymium-iron-boron magnet capable of inhibiting reduction of coercive force and improving the coercive force can be obtained by means of an oxygen adding operation, and meanwhile, the corrosion resistance of the magnet can be improved.

公开(公告)号：US12080458B2

公开(公告)日：2024-09-03

申请号：US16291100

申请日：2019-03-04

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomohiro Suetsuna ,  Hiroaki Kinouchi ,  Takahiro Kawamoto

IPC: H01F1/24 ,  B22F1/068 ,  B22F1/08 ,  B22F1/102 ,  B22F1/16 ,  B22F3/02 ,  B22F3/24 ,  C21D6/00 ,  C21D8/02 ,  C21D9/52 ,  C22C38/10 ,  H01F1/147 ,  H01F1/28

CPC classification number: H01F1/24 ,  B22F1/068 ,  B22F1/08 ,  B22F1/102 ,  B22F1/16 ,  H01F1/14741 ,  B22F3/02 ,  B22F3/24 ,  C21D6/007 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0247 ,  C21D9/52 ,  C22C38/10 ,  H01F1/28 ,  B22F2999/00 ,  B22F1/068 ,  B22F1/08 ,  C22C49/00 ,  B22F2202/05 ,  B22F7/064 ,  B22F7/08 ,  C22C2202/02

Abstract: The magnetic composite material of the embodiments is a magnetic composite material that includes a magnetic material having a plane at the surface; and a plate-shaped reinforcing material, the magnetic material having a plurality of magnetic bodies having a planar structure and having a magnetic metal phase containing at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), and principal surfaces; and an intercalated phase containing at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F). In the magnetic composite material, the principal surfaces are oriented to be approximately parallel to the plane and have the difference in coercivity on the basis of direction within the plane.