Invention Grant
US08852500B2 Ni-base superalloy, method for producing the same, and turbine blade or turbine vane components
有权
镍基超级合金，其制造方法，涡轮叶片或涡轮叶片部件
- Patent Title: Ni-base superalloy, method for producing the same, and turbine blade or turbine vane components
- Patent Title (中): 镍基超级合金，其制造方法，涡轮叶片或涡轮叶片部件
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Application No.: US12225254Application Date: 2007-03-16
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Publication No.: US08852500B2Publication Date: 2014-10-07
- Inventor: Yutaka Koizumi , Hiroshi Harada , Tadaharu Yokokawa , Toshiharu Kobayashi
- Applicant: Yutaka Koizumi , Hiroshi Harada , Tadaharu Yokokawa , 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: JP2006-077256 20060320
- International Application: PCT/JP2007/055450 WO 20070316
- International Announcement: WO2007/119404 WO 20071025
- Main IPC: C22C19/05
- IPC: C22C19/05 ; F01D5/14 ; C22F1/10
Abstract:
A Ni-base superalloy having a chemical composition comprising Cr: 3.0-5.0 wt %, Co: 5.0-10.0 wt %, Mo: 0.5-3.0 wt %, W: 8.0-10.0 wt %, Ta: 5.0-8.0 wt %, Nb: 3.0 wt % or less, Al: 4.5-6.0 wt %, Ti: 0.1-2.0 wt %, Re: more than 3.0-4.0 wt %, Ru: 0.2-4.0 wt %, Hf: 0.01-0.2 wt %, and the balance being Ni and unavoidable impurities, a method for producing the same, and turbine blade or turbine vane components are disclosed. The Ni-base superalloy has high creep strength and textural stability under high temperature environment, and is excellent in applicability to turbine blade or turbine vane components of large-sized gas turbines.
Public/Granted literature
- US20100226779A1 Ni-Base Superalloy, Method for Producing the Same, and Turbine Blade or Turbine Vane Components Public/Granted day:2010-09-09
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