Invention Grant
- Patent Title: Fluid contact member and method of manufacturing fluid contact member
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Application No.: US17311726Application Date: 2019-11-06
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Publication No.: US11946554B2Publication Date: 2024-04-02
- Inventor: Hirotsugu Kawanaka , Yoshihisa Kiyotoki , Sei Hirano , Daisuke Hirasawa , Junya Kaneda
- Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.
- Applicant Address: JP Hitachi
- Assignee: HITACHI-GE NUCLEAR ENERGY, LTD.
- Current Assignee: HITACHI-GE NUCLEAR ENERGY, LTD.
- Current Assignee Address: JP Hitachi
- Agency: MATTINGLY & MALUR, PC
- Priority: JP 19001434 2019.01.08
- International Application: PCT/JP2019/043433 2019.11.06
- International Announcement: WO2020/144924A 2020.07.16
- Date entered country: 2021-06-08
- Main IPC: C22C19/07
- IPC: C22C19/07 ; B22F10/64 ; B33Y40/20 ; B33Y80/00 ; C22F1/10 ; F16K25/04 ; B22F10/28 ; B33Y10/00 ; F16K3/30

Abstract:
To provide a fluid contact member whose corrosion resistance is particularly further improved than that in the related art. In order to solve this problem, a fluid contact member 10 includes a fluid contact portion 1 configured to be in contact with a fluid, the fluid contact portion 1 has a cobalt-based alloy phase 2 having a dendrite, and a compound phase 3 formed in an arm space of the dendrite and containing chromium carbide, and among a plurality of secondary arms 5 extending from one primary arm 4 constituting the dendrite, an average interval between adjacent secondary arms 5 is 5 μm or less. At this time, the average interval is preferably 3 μm or less. Further, the compound phase 3 is preferably formed discontinuously in the dendrite arm space.
Public/Granted literature
- US20220025984A1 FLUID CONTACT MEMBER AND METHOD OF MANUFACTURING FLUID CONTACT MEMBER Public/Granted day:2022-01-27
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