发明申请
US20090074584A1 NICKEL-BASED ALLOY FOR TURBINE ROTOR OF STEAM TURBINE AND TURBINE ROTOR OF STEAM TURBINE
审中-公开
用于涡轮机的涡轮转子和蒸汽轮机的涡轮转子的基于镍的合金
- 专利标题： NICKEL-BASED ALLOY FOR TURBINE ROTOR OF STEAM TURBINE AND TURBINE ROTOR OF STEAM TURBINE
- 专利标题（中）： 用于涡轮机的涡轮转子和蒸汽轮机的涡轮转子的基于镍的合金
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申请号： US12210475申请日： 2008-09-15
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公开(公告)号： US20090074584A1公开(公告)日： 2009-03-19
- 发明人: Kuniyoshi Nemoto , Kiyoshi Imai , Yomei Yoshioka , Masayuki Yamada , Reki Takaku , Takeo Suga , Masafumi Fukuda , Kenichi Okuno , Akihiro Takakuwa
- 申请人： Kuniyoshi Nemoto , Kiyoshi Imai , Yomei Yoshioka , Masayuki Yamada , Reki Takaku , Takeo Suga , Masafumi Fukuda , Kenichi Okuno , Akihiro Takakuwa
- 申请人地址： JP Tokyo
- 专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址： JP Tokyo
- 优先权： JP2007-239227 20070914
- 主分类号： B64C27/46
- IPC分类号： B64C27/46 ; C22C19/05
摘要：
A Nickel-based alloy for a turbine rotor of a steam turbine contains C: 0.01 to 0.15, Cr: 18 to 28, Co: 10 to 15, Mo: 8 to 12, Al: 1.5 to 2, Ti: 0.1 to 0.6, B: 0.001 to 0.006, Ta: 0.1 to 0.7 in % by weight, and the remaining portion is composed of Ni and unavoidable impurities. The Nickel-based alloy is composed of the above-stated chemical composition range, and thereby, a mechanical strength improves while maintaining forgeability as same as a conventional steel.
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