Invention Grant
- Patent Title: Ni-base superalloy and method for producing the same
- Patent Title (中): 镍基超级合金及其制造方法
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Application No.: US12225710Application Date: 2007-03-16
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Publication No.: US08696979B2Publication Date: 2014-04-15
- Inventor: Tadaharu Yokokawa , Yutaka Koizumi , Hiroshi Harada , Toshiharu Kobayashi
- Applicant: Tadaharu Yokokawa , Yutaka Koizumi , Hiroshi Harada , Toshiharu Kobayashi
- Applicant Address: JP Ibaraki
- Assignee: National Institute for Materials Science
- Current Assignee: National Institute for Materials Science
- Current Assignee Address: JP Ibaraki
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2006-096594 20060331
- International Application: PCT/JP2007/055451 WO 20070316
- International Announcement: WO2007/122931 WO 20071101
- Main IPC: C22C19/05
- IPC: C22C19/05 ; C22F1/10
Abstract:
A Ni-base superalloy having a chemical composition comprising Al: 4.5-7.0 wt %, Ta+Nb+Ti: 0.1-4.0 wt %, with Ta being less than 4.0 wt %, Mo: 1.0-8.0 wt %, W: 0.0-10.0 wt %, Re: 2.0-8.0 wt %, Hf: 0.0-1.0 wt %, Cr: 2.0-10.0 wt %, Co: 0.0-15.0 wt %, Ru: 0.0-5.0 wt %, and the balance being Ni and unavoidable impurities, and a method for producing the same are disclosed. The Ni-base superalloy has excellent creep property at high temperature and is suitable for use as a member at high temperature under high stress.
Public/Granted literature
- US20090317288A1 Ni-Base Superalloy and Method for Producing the Same Public/Granted day:2009-12-24
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