公开(公告)号：US12233462B2

公开(公告)日：2025-02-25

申请号：US17764785

申请日：2020-10-10

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Xun Gu ,  Mehrdad T Kiani

IPC: B22F7/04 ,  C22C45/00 ,  C22C45/02 ,  C22C45/04

Abstract: A consolidated metallic glass structure is formed by fabricating [200] metallic glass nanoparticles with a solution-phase synthesis that provides coated metallic glass nanoparticles with a polymer ligand layer; stripping [202] the polymer ligand layer from the coated metallic glass nanoparticles to provide bare metallic glass nanoparticles; depositing [204] the bare metallic glass nanoparticles on a substrate to provide a deposited structure; and sintering [206] the deposited structure with heat and/or pressure to provide the consolidated metallic glass structure. The metallic glass nanoparticles are preferably composed substantially of nickel and boron, iron and boron, or cobalt and boron.

公开(公告)号：US12211634B2

公开(公告)日：2025-01-28

申请号：US16765915

申请日：2018-08-21

Applicant: TDK CORPORATION

Inventor： Akihiro Harada ,  Akito Hasegawa ,  Kazuhiro Yoshidome ,  Kenji Horino ,  Hiroyuki Matsumoto

IPC: H01F1/153 ,  C22C38/02 ,  C22C38/16 ,  C22C45/02

Abstract: A soft magnetic alloy or the like combines high saturated magnetic flux density, low coercive force and high magnetic permeability μ′. A soft magnetic alloy having the composition formula (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))BaSibCcCudMe. X1 is one or more elements selected from the group consisting of Co and Ni, X2 is one or more elements selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O and rare earth elements, and M is one or more elements selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, μ′ and V. 0.090≤a≤0.240, 0.030.

公开(公告)号：US12188106B2

公开(公告)日：2025-01-07

申请号：US17901153

申请日：2022-09-01

Applicant: Vacuumschmelze GmbH & Co. KG

Inventor： Robert Schulz

IPC: C22C19/03 ,  B22D11/00 ,  B22D11/06 ,  B22D11/112 ,  C21D8/02 ,  C21D9/52 ,  C22C38/00 ,  C22C38/02 ,  C22C38/16 ,  C22C45/02 ,  C22C45/04

Abstract: A device for the production of a metallic strip using a rapid solidification technology is provided. The device includes a movable heat sink with an external surface onto which a melt is poured and on which the melt solidifies to produce the strip, and which device includes a rolling device which can be pressed against the external surface of the movable heat sink while the heat sink is in motion.

公开(公告)号：US12062475B2

公开(公告)日：2024-08-13

申请号：US17702972

申请日：2022-03-24

Applicant: TDK CORPORATION

Inventor： Takuya Tsukahara ,  Isao Nakahata ,  Kazuhiro Yoshidome

IPC: C22C38/16 ,  C22C38/02 ,  C22C38/12 ,  C22C45/02 ,  H01F1/153

CPC classification number: H01F1/15333 ,  C22C38/02 ,  C22C38/12 ,  C22C38/16 ,  C22C45/02 ,  C22C2200/02 ,  C22C2202/02

Abstract: To provide a soft magnetic alloy or the like, from which a magnetic component having a good temperature property of core loss can be obtained. The soft magnetic alloy includes Fe. The soft magnetic alloy includes a crystallite, and an amorphous phase existing around the crystallite. A total area ratio of the crystallite in a cross section of the soft magnetic alloy is 40% or more and less than 60%. An average thickness of the amorphous phase is 3.0 nm or more and 10.0 nm or less. A standard deviation of a thickness of the amorphous phase is 10.0 nm or less.

公开(公告)号：US12062474B2

公开(公告)日：2024-08-13

申请号：US17968627

申请日：2022-10-18

Applicant: TDK CORPORATION

Inventor： Akito Hasegawa ,  Satoko Mori ,  Kazuhiro Yoshidome

IPC: C22C19/07 ,  C22C33/02 ,  C22C45/02 ,  H01F1/153

CPC classification number: H01F1/15316 ,  C22C19/07 ,  C22C33/0257 ,  C22C45/02

Abstract: A soft magnetic alloy powder includes a particle body and a surface layer. The particle body comprises a soft magnetic alloy including Fe and Co. The surface layer is located on a surface side of the particle body. The surface layer includes one or more local maximum points of Si concentration and one or more local maximum points of Co concentration. The surface layer satisfies DSi≤DCo, in which DSi is a distance from an interface between the particle body and the surface layer to a first Si local maximum point LSimax, and DCo is a distance from the interface to a first Co local maximum point LComax.

公开(公告)号：US20240229206A1

公开(公告)日：2024-07-11

申请号：US18562224

申请日：2022-05-18

Applicant: NIPPON STEEL CORPORATION

Inventor： Shinya SATO ,  Shigekatsu OZAKI ,  Shinichi TERASHIMA ,  Takayuki KOBAYASHI ,  Yuichi SATO

IPC: C22C45/02

CPC classification number: C22C45/02 ,  C22C2200/02

Abstract: The present invention has as its object the provision of an Fe-based amorphous alloy and Fe-based amorphous alloy ribbon excellent in soft magnetic properties having a low iron loss and a high saturation magnetic flux density. The Fe-based amorphous alloy excellent in soft magnetic properties of the present invention comprises, by atom %, B: 8.0% or more and 18.0% or less, Si: 2.0% or more and 9.0% or less, C: 0.10% or more and 5.00% or less, Al: 0.005% or more and 1.50% or less, P: 0% or more and less than 1.00%, Mn: 0% or more and 0.30% or less, Fe: 78.00% or more and 86.00% or less, and balance: impurities and has an amorphous structure.

公开(公告)号：US11952651B2

公开(公告)日：2024-04-09

申请号：US17620284

申请日：2020-06-24

Applicant: PROTERIAL, LTD.

Inventor： Hajime Itagaki ,  Morifumi Kuroki ,  Makoto Sasaki ,  Shin Nakajima

IPC: C22C45/00 ,  B23K26/362 ,  C21D8/12 ,  C22C45/02 ,  H01F1/153 ,  H01F27/25 ,  H01F27/255 ,  H01F30/10 ,  H01F30/12

CPC classification number: C22C45/008 ,  B23K26/362 ,  C21D8/1294 ,  C22C45/02 ,  H01F1/15308 ,  H01F27/25 ,  H01F27/255 ,  H01F30/10 ,  H01F30/12

Abstract: An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL×width WA calculated from the height difference between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 μm2.

公开(公告)号：US11887760B2

公开(公告)日：2024-01-30

申请号：US17519773

申请日：2021-11-05

Applicant: TDK CORPORATION

Inventor： Kensuke Ara ,  Hajime Amano

IPC: H01F1/153 ,  C22C45/02

CPC classification number: H01F1/15308 ,  C22C45/02 ,  H01F1/15333

Abstract: There is provided a soft magnetic alloy comprising a composition expressed by a formula of (Fe(1-α)Aα)(1-m-x-y)MmXxYy, in which M represents at least one selected from the group consisting of Zr and Hf, X represents at least one selected from the group consisting of Ni, Mn, Cu, Co, Al, and Ge, Y represents at least one selected from the group consisting of B, P, and Si, A represents at least one selected from the group consisting of Ti, V, Cr, Zn, Mg, Sn, Bi, O, N, S, and a rare earth element, m, x, y, and α satisfy relationships of 0.070≤m≤0.120, 0.001≤x≤0.030, 0≤y≤0.010, and 0≤α≤0.100, and the alloy contains Fe-based nanocrystals having an average crystal grain size of 30 nm or less.

公开(公告)号：US11791077B2

公开(公告)日：2023-10-17

申请号：US17672441

申请日：2022-02-15

Applicant: TDK CORPORATION

Inventor： Hironobu Kumaoka ,  Kazuhiro Yoshidome ,  Akito Hasegawa ,  Satoko Mori

IPC: H01F1/153 ,  C22C38/02 ,  C22C45/02

CPC classification number: H01F1/15308 ,  C22C38/02 ,  C22C45/02 ,  H01F1/15316 ,  H01F1/15333

Abstract: A soft magnetic alloy including an internal area having a soft magnetic type alloy composition including Fe and Co, a Co concentrated area existing closer to a surface side than the internal area and having a higher Co concentration than in the internal area, and a SB concentrated area existing closer to the surface side than the Co concentrated area and having a higher concentration of at least one element selected from Si and B than in the internal area.

公开(公告)号：US11781205B2

公开(公告)日：2023-10-10

申请号：US16731292

申请日：2019-12-31

Applicant: Cornerstone Intellectual Property, LLC

Inventor： John Kang ,  Evelina Vogli

IPC: C22C45/02 ,  B22F3/00 ,  B22F5/12 ,  B22F3/105 ,  C23C28/02 ,  B22F1/08

CPC classification number: C22C45/02 ,  B22F1/08 ,  B22F3/006 ,  B22F3/105 ,  B22F5/12 ,  C23C28/026 ,  B22F2003/1051 ,  B22F2301/058 ,  B22F2301/35 ,  B22F2303/30

Abstract: Embodiments disclosed herein relate to the production of bulk amorphous metal (BAM) alloys comprising chromium, manganese, molybdenum, tungsten, silicon, carbon, boron, and the balance of iron to replace tungsten carbide-based welded material. The BAM alloy embodied herein can be applied through PTA welding, HVOF, TWAS, flame spraying, plasma spraying, laser, their combinations, and other coating and welding processes. When used as welded material, the density of the embodiment of around 7 grams per CC, which is less dense than the tungsten carbide customarily used, resulting in even hard faces during welding spread uniformly across the weld, therefore creating a harder and more wear-resistant weld.