公开(公告)号：US20250154629A1

公开(公告)日：2025-05-15

申请号：US18861977

申请日：2023-05-01

Applicant: PROTERIAL, LTD.

Inventor： Hiroshi SHIRATORI ,  Shuho KOSEKI ,  Kousuke KUWABARA ,  Noriyuki NOZAWA ,  Shinya OKAMOTO ,  Toshimi MIYAGI

IPC: C22C19/05 ,  B22F1/05 ,  B33Y70/00

Abstract: Provided are an alloy having high hardness at high temperatures and high crack resistance, a powder consisting of the alloy, and an alloy member and a composite member including the alloy. The alloy includes, in % by mass, Cr at 10% to 20%, C at 1.0% to 2.5%, Ti at 3% to 8%, either or both of Nb and Ta at 8% to 15% in total, B at less than 0.5%, Al at 2% or less, Mo at 8% or less, W at 8% or less, a total of Mo and W being less than 10%, and a balance consisting of Ni and inevitable impurities, wherein a ratio of a total number of Ti, Nb, and Ta atoms to a number of C atoms is more than 1.5.

公开(公告)号：US20240304365A1

公开(公告)日：2024-09-12

申请号：US18276245

申请日：2022-02-10

Applicant: Proterial, Ltd.

Inventor： Shinya OKAMOTO ,  Atsuhiko ONUMA ,  Nobuyuki OKAMURA ,  Kousuke KUWABARA ,  Shunya ADACHI ,  Masahiro SATO ,  Takahiro ISHII

IPC: H01F1/055 ,  B22F9/08 ,  B22F10/28 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/30

CPC classification number: H01F1/055 ,  B22F9/082 ,  B22F10/28 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/30 ,  B22F2009/0824 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: The purpose of the present invention is to provide: an iron-chromium-cobalt alloy magnet having improved magnetic characteristics, especially maximum energy product; and a method for producing the same. Provided is an iron-chromium-cobalt alloy magnet, wherein: the iron-chromium-cobalt alloy magnet includes titanium; the number density of Ti-enriched phases having a maximum diameter of 3 μm or greater in a cross-section is, on average, less than 1.0 per 10,000 μm2; and the squareness ratio represented by (BH)ma×/(Br×HcB) exceeds 0.72.

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：US20240376573A1

公开(公告)日：2024-11-14

申请号：US18690344

申请日：2022-02-10

Applicant: PROTERIAL, LTD.

Inventor： Hiroshi SHIRATORI ,  Shuho KOSEKI ,  Shinya OKAMOTO ,  Kousuke KUWABARA ,  Shinsuke ANDOH

IPC: C22C29/08 ,  B23B27/14 ,  B28B1/00 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C19/00 ,  C22C19/03 ,  C22C19/05 ,  C22C29/06

Abstract: The invention provides a cermet composite material that can improve a bond strength between a cermet part and a non-cermet part without heat treatment at high temperature. The cermet composite material according to the invention comprises a cermet part including hard carbides dispersed in a metallic phase and a non-cermet part consisting of a Ni-based alloy including 50% by mass or more of Ni with the cermet part being formed on the non-cermet part by additive manufacturing, wherein the cermet composite material comprises an intermediate layer including both components of the cermet part and components of the non-cermet part between the cermet part and the non-cermet part, and the non-cermet part consists of the Ni-based alloy including 3.0% by mass to 15.0% by mass of Ti or the Ni-based alloy including 0.5% by mass to less than 3.0% by mass of Ti and 4% by mass to 15% by mass of Nb and Ta in total.

公开(公告)号：US20240390973A1

公开(公告)日：2024-11-28

申请号：US18688320

申请日：2022-11-22

Applicant: PROTERIAL, LTD.

Inventor： Hiroshi SHIRATORI ,  Shuho KOSEKI ,  Shinsuke ANDO ,  Kousuke KUWABARA ,  Shinya OKAMOTO

IPC: B22D15/00

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 comprises the high-melting-point metal elements that account for 50% by mass to 95% by mass thereof.