Invention Grant
US08685316B2 Ni-based heat resistant alloy, gas turbine component and gas turbine
有权
镍基耐热合金，燃气轮机部件和燃气轮机
- Patent Title: Ni-based heat resistant alloy, gas turbine component and gas turbine
- Patent Title (中): 镍基耐热合金，燃气轮机部件和燃气轮机
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Application No.: US13286274Application Date: 2011-11-01
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Publication No.: US08685316B2Publication Date: 2014-04-01
- Inventor: Jun Sato , Shinya Imano , Hiroyuki Doi
- Applicant: Jun Sato , Shinya Imano , Hiroyuki Doi
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2010-268921 20101202
- Main IPC: C22C19/05
- IPC: C22C19/05 ; F01D5/00
Abstract:
A Ni-based heat resistant alloy has a composition of, by mass percent, carbon: 0.001 to 0.1%, chromium: 16 to 22%, aluminum: 0.5 to 1.5%, molybdenum: 0.1 to 2.0%, tungsten: 0.1 to 6.0%, niobium: 3.5 to 5.5%, titanium: 0.8 to 3.0%, iron: 16 to 20%, and the balance being nickel and inevitable impurities. A parameter Ps indicating a segregation tendency is in a range of Ps≧−3.5. The parameter Ps is represented by Formula (1). Ps=1.05×Al content+0.6×Ti content−0.8×Nb content−0.3×Mo content (1)
Public/Granted literature
- US20120141293A1 NI-BASED HEAT RESISTANT ALLOY, GAS TURBINE COMPONENT AND GAS TURBINE Public/Granted day:2012-06-07
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