发明授权
- 专利标题: Nickel-base superalloys and components formed thereof
- 专利标题(中): 镍基超级合金及其形成的部件
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申请号: US12474651申请日: 2009-05-29
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公开(公告)号: US08992700B2公开(公告)日: 2015-03-31
- 发明人: Kenneth Rees Bain , David Paul Mourer , Richard DiDomizio , Timothy Hanlon , Laurent Cretegny , Andrew Ezekiel Wessman
- 申请人: Kenneth Rees Bain , David Paul Mourer , Richard DiDomizio , Timothy Hanlon , Laurent Cretegny , Andrew Ezekiel Wessman
- 申请人地址: US NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Schenectady
- 代理机构: General Electric Company
- 代理商 Brian P. Overbeck
- 主分类号: C22C19/05
- IPC分类号: C22C19/05 ; C22C30/00 ; C22C1/04
摘要:
A gamma prime nickel-base superalloy and components formed therefrom that exhibit improved high-temperature dwell capabilities, including creep and hold time fatigue crack growth behavior. A particular example of a component is a powder metallurgy turbine disk of a gas turbine engine. The gamma-prime nickel-base superalloy contains, by weight, 18.0 to 30.0% cobalt, 11.4 to 16.0% chromium, up to 6.0% tantalum, 2.5 to 3.5% aluminum, 2.5 to 4.0% titanium, 5.5 to 7.5% molybdenum, up to 2.0% niobium, up to 2.0% hafnium, 0.04 to 0.20% carbon, 0.01 to 0.05% boron, 0.03 to 0.09% zirconium, the balance essentially nickel and impurities, wherein the titanium:aluminum weight ratio is 0.71 to 1.60.
公开/授权文献
- US20100303666A1 NICKEL-BASE SUPERALLOYS AND COMPONENTS FORMED THEREOF 公开/授权日:2010-12-02