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1. 发明授权

US08747733B2 Precipitation hardenable martensitic stainless steel and steam turbine blade using the same 有权
标题翻译：沉淀硬化马氏体不锈钢和蒸汽轮机叶片使用相同
公开(公告)号：US08747733B2
公开(公告)日：2014-06-10
申请号：US13086416
申请日：2011-04-14
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/14
CPC分类号： C22C38/06 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/286 , F05D2260/95 , F05D2300/171
摘要： A precipitation hardenable martensitic stainless steel excellent in the stability of martensite, having the high strength, high toughness and high corrosion resistance is provided. The precipitation hardenable martensitic stainless steel contains at a mass rate, C: 0.05-0.10%, Cr: 12.0-13.0%, Ni: 6.0-7.0%, Mo: 1.0-2.0%, Si: 0.01-0.05%, Mn: 0.06-1.0%, Nb: 0.3-0.5%, V: 0.3-0.5%, Ti: 1.5-2.5%, Al: 1.0-2.3%, and the remainder consisting of Fe and an unavoidable impurity.
摘要翻译：提供了具有高强度，高韧性和高耐腐蚀性的马氏体稳定性优异的析出硬化性马氏体系不锈钢。沉淀硬化马氏体系不锈钢的质量比为C：0.05〜0.10％，Cr：12.0〜13.0％，Ni：6.0〜7.0％，Mo：1.0〜2.0％，Si：0.01-0.05％，Mn：0.06 -1.0％，Nb：0.3〜0.5％，V：0.3〜0.5％，Ti：1.5〜2.5％，Al：1.0〜2.3％，余量由Fe和不可避免的杂质构成。

2. 发明申请

US20120114496A1 Precipitation Hardening Martensitic Stainless Steel and Steam Turbine Component Made Thereof 有权
标题翻译：沉淀硬化马氏体不锈钢和汽轮机组件
公开(公告)号：US20120114496A1
公开(公告)日：2012-05-10
申请号：US13292126
申请日：2011-11-09
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： F01D5/14 , C22C38/28 , C22C38/22
CPC分类号： C22C38/18 , C21D6/00 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/60
摘要： It is an objective of the present invention to provide a precipitation-hardening martensitic stainless steel having well-balanced properties of high mechanical strength, high toughness and good corrosion resistance properties. There is provided a precipitation-hardening martensitic stainless steel comprising: 0.10 mass % or less of C; 13.0 to 15.0 mass % of Cr; 7.0 to 10.0 mass % of Ni; 2.0 to 3.0 mass % of Mo; 0.5 to 2.5 mass % of Ti; 0.5 to 2.5 mass % of Al; 0.5 mass % or less of Si; 0.1 to 1.0 mass % of Mn; and the balance including Fe and incidental impurities, in which the mass % content of the Ti (represented by [Ti content]), the mass % content of the Al (represented by [Al content]) and the mass % content of the C (represented by [C content]) satisfy relationships of “0.5≦[Ti content]≦2.5” and “0.5≦[Al content]+2[C content]≦2.7”.
摘要翻译：本发明的目的是提供一种具有高机械强度，高韧性和良好耐腐蚀性能的均衡性能的沉淀硬化马氏体不锈钢。提供了一种沉淀硬化马氏体不锈钢，其包含：0.10质量％以下的C; Cr：13.0〜15.0质量％ 7.0〜10.0质量％的Ni; 2.0〜3.0质量％的Mo; 0.5〜2.5质量％的Ti; 0.5〜2.5质量％的Al; 0.5质量％以下的Si; 0.1〜1.0质量％的Mn; 余量包括Fe和偶氮杂质，Ti（由[Ti含量]表示）的质量％含量，Al（由[Al含量]表示）的质量％含量和C的质量％（由[C含量表示]）满足“0.5＆nlE; [Ti含量]＆nlE; 2.5”和“0.5＆nlE; [Al含量] +2 [C含量]＆nlE; 2.7”的关系。

3. 发明申请

US20110255988A1 PRECIPITATION HARDENABLE MARTENSITIC STAINLESS STEEL AND STEAM TURBINE BLADE USING THE SAME 有权
标题翻译：降低可燃性马氏体不锈钢和蒸汽涡轮叶片使用它
公开(公告)号：US20110255988A1
公开(公告)日：2011-10-20
申请号：US13086416
申请日：2011-04-14
申请人： Shinji OIKAWA , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji OIKAWA , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： F01D5/14 , C22C38/22 , C22C38/58
CPC分类号： C22C38/06 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/286 , F05D2260/95 , F05D2300/171
摘要： A precipitation hardenable martensitic stainless steel excellent in the stability of martensite, having the high strength, high toughness and high corrosion resistance is provided. The precipitation hardenable martensitic stainless steel contains at a mass rate, C: 0.05-0.10%, Cr: 12.0-13.0%, Ni: 6.0-7.0%, Mo: 1.0-2.0%, Si: 0.01-0.05%, Mn: 0.06-1.0%, Nb: 0.3-0.5%, V: 0.3-0.5%, Ti: 1.5-2.5%, Al: 1.0-2.3%, and the remainder consisting of Fe and an unavoidable impurity.
摘要翻译：提供了具有高强度，高韧性和高耐腐蚀性的马氏体稳定性优异的析出硬化性马氏体系不锈钢。沉淀硬化马氏体系不锈钢的质量比为C：0.05〜0.10％，Cr：12.0〜13.0％，Ni：6.0〜7.0％，Mo：1.0〜2.0％，Si：0.01-0.05％，Mn：0.06 -1.0％，Nb：0.3〜0.5％，V：0.3〜0.5％，Ti：1.5〜2.5％，Al：1.0〜2.3％，余量由Fe和不可避免的杂质构成。

4. 发明授权

US09873930B2 Precipitation hardening martensitic stainless steel and steam turbine component made thereof 有权
公开(公告)号：US09873930B2
公开(公告)日：2018-01-23
申请号：US13292126
申请日：2011-11-09
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： C22C38/44 , C22C38/18 , C21D6/00 , C21D6/02 , C21D9/00 , C22C38/40 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/60
CPC分类号： C22C38/18 , C21D6/00 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/60
摘要： It is an objective of the present invention to provide a precipitation-hardening martensitic stainless steel having well-balanced properties of high mechanical strength, high toughness and good corrosion resistance properties. There is provided a precipitation-hardening martensitic stainless steel comprising: 0.10 mass % or less of C; 13.0 to 15.0 mass % of Cr; 7.0 to 10.0 mass % of Ni; 2.0 to 3.0 mass % of Mo; 0.5 to 2.5 mass % of Ti; 0.5 to 2.5 mass % of Al; 0.5 mass % or less of Si; 0.1 to 1.0 mass % of Mn; and the balance including Fe and incidental impurities, in which the mass % content of the Ti (represented by [Ti content]), the mass % content of the Al (represented by [Al content]) and the mass % content of the C (represented by [C content]) satisfy relationships of “0.5≦[Ti content]≦2.5” and “0.5≦[Al content]+2[C content]≦2.7”.

5. 发明授权

US09062362B2 Precipitate hardening stainless steel and long blade using same for steam turbine 有权
标题翻译：沉淀硬化不锈钢和长叶片使用相同的汽轮机
公开(公告)号：US09062362B2
公开(公告)日：2015-06-23
申请号：US13495386
申请日：2012-06-13
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： F01D5/28 , C22C38/50 , C22C38/44
CPC分类号： C22C38/50 , C22C38/44
摘要： As a precipitate hardening stainless steel has excellent structure stability, strength, toughness, and corrosion resistance, requires no sub-zero treating and is excellent in terms of productivity, a long blade for a steam turbine uses the same. The following are provided: a precipitate hardening stainless steel, which comprises C at 0.05 mass % or less, N at 0.05 mass % or less, Cr at 10.0 mass % to 14.0 mass %, Ni at 8.5 mass % to 11.5 mass %, Mo at 0.5 mass % to 3.0 mass %, Ti at 1.5 mass % to 2.0 mass %, Al at 0.25 mass % to 1.00 mass %, Si at 0.5 mass % or less, and Mn at 1.0 mass % or less, and the balance is composed of Fe and inevitable impurities. The long blade for a steam turbine is composed of this precipitate hardening stainless steel.
摘要翻译：作为沉淀硬化不锈钢具有优异的结构稳定性，强度，韧性和耐腐蚀性，不需要次零处理，并且在生产率方面优异，蒸汽轮机的长叶片使用它。提供以下：沉淀硬化不锈钢，其含有0.05质量％以下的C，0.05质量％以下的N，10.0质量％〜14.0质量％的Cr，8.5质量％〜11.5质量％的Ni，Mo 1.5质量％至2.0质量％的Ti，0.5质量％至3.0质量％的Al，0.25质量％至1.00质量％的Al，0.5质量％以下的Si，1.0质量％以下的Mn，余量为由Fe和不可避免的杂质组成。蒸汽轮机的长叶片由这种沉淀硬化不锈钢组成。

6. 发明申请

US20060216145A1 Heat resisting steel, steam turbine rotor shaft using the steel, steam turbine, and steam turbine power plant 有权
公开(公告)号：US20060216145A1
公开(公告)日：2006-09-28
申请号：US11172929
申请日：2005-07-05
申请人： Masahiko Arai , Hirotsugu Kawanaka , Kennichi Murata , Hideo Yoda
发明人： Masahiko Arai , Hirotsugu Kawanaka , Kennichi Murata , Hideo Yoda
IPC分类号： F04D29/44
CPC分类号： F01D5/02 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , F01D5/28 , F05C2201/0466 , F05D2240/60 , F05D2300/131 , F05D2300/132 , F05D2300/161
摘要： The invention provides a heat resisting steel having superior high-temperature strength and notch rupture strength, a rotor shaft using the heat resisting steel, a steam turbine using the rotor shaft, and a power plant using the steam turbine. The heat resisting steel is made of a Cr—Mo—V low-alloy steel containing 0.15-0.40% by weight of C, not more than 0.5% of Si, 0.05-0.50% of Mn, 0.5-1.5% of Ni, 0.8-1.5% of Cr, 0.8-1.8% of Mo and 0.05-0.35% of V, and having a (Ni/Mn) ratio of 3.0-10.0.

7. 发明申请

US20070071599A1 High-strength heat resisting cast steel, method of producing the steel, and applications of the steel 审中-公开
标题翻译：高强度耐热铸钢，钢的生产方法和钢的应用
公开(公告)号：US20070071599A1
公开(公告)日：2007-03-29
申请号：US11528439
申请日：2006-09-28
申请人： Masahiko Arai , Hirotsugu Kawanaka , Hideo Yoda
发明人： Masahiko Arai , Hirotsugu Kawanaka , Hideo Yoda
IPC分类号： F04D29/44
CPC分类号： C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/52
摘要： A high-strength heat resisting cast steel which has high creep rupture strength at temperatures of 620° C. or above, high toughness, and good weldability. A method of producing the steel, a steam turbine casing, a main steam valve casing, and a steam control valve casing, each casing being made of that steel, as well as a steam turbine power plant using those components are also provided. The high-strength heat resisting cast steel contains 0.06-0.16% by mass of C, 0.1-1% of Si, 0.1-1% of Mn, 8-12% of Cr, 0.1-1.0% of Ni, 0.7% or less of Mo, 1.9-3.0% of W, 0.05-0.3% of V, 0.01-0.15% of one or more of Nb, Ta and Zr in total, 0.1-2% of Co, 0.01-0.08% of N, and 0.0005-0.01% of B, the balance being Fe and unavoidable impurities.
摘要翻译：高温耐热铸钢，其温度为620℃以上，蠕变断裂强度高，韧性高，焊接性好。还提供了一种制造钢的方法，蒸汽轮机壳体，主蒸汽阀壳体和蒸汽控制阀壳体，每个壳体由该钢制成，以及使用这些部件的蒸汽轮机发电厂。高强度耐热铸钢含有0.06-0.16质量％的C，0.1-1％的Si，0.1-1％的Mn，8-12％的Cr，0.1-1.0％的Ni，0.7％以下的的Mo，1.9〜3.0％的V，0.05〜0.3％的V，0.01-0.15％的Nb，Ta和Zr中的一种或多种，Co：0.1〜2％，N：0.01-0.08％，N：0.0005 -0.01％的B，余量为Fe和不可避免的杂质。

8. 发明授权

US07540711B2 Heat resisting steel, steam turbine rotor shaft using the steel, steam turbine, and steam turbine power plant 有权
标题翻译：耐热钢，蒸汽轮机转子轴采用钢铁，蒸汽轮机和蒸汽轮机发电厂
公开(公告)号：US07540711B2
公开(公告)日：2009-06-02
申请号：US11172929
申请日：2005-07-05
申请人： Masahiko Arai , Hirotsugu Kawanaka , Kennichi Murata , Hideo Yoda
发明人： Masahiko Arai , Hirotsugu Kawanaka , Kennichi Murata , Hideo Yoda
IPC分类号： F04D29/04
CPC分类号： F01D5/02 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , F01D5/28 , F05C2201/0466 , F05D2240/60 , F05D2300/131 , F05D2300/132 , F05D2300/161
摘要： The invention provides a heat resisting steel having superior high-temperature strength and notch rupture strength, a rotor shaft using the heat resisting steel, a steam turbine using the rotor shaft, and a power plant using the steam turbine. The heat resisting steel is made of a Cr—Mo—V low-alloy steel containing 0.15-0.40% by weight of C, not more than 0.5% of Si, 0.05-0.50% of Mn, 0.5-1.5% of Ni, 0.8-1.5% of Cr, 0.8-1.8% of Mo and 0.05-0.35% of V, and having a (Ni/Mn) ratio of 3.0-10.0.
摘要翻译：本发明提供一种具有优异的高温强度和切口断裂强度的耐热钢，使用该耐热钢的转子轴，使用该转子轴的蒸汽轮机，以及使用该蒸汽轮机的动力装置。耐热钢由Cr-Mo-V低合金钢制成，含有0.15-0.40重量％的C，不超过0.5％的Si，0.05-0.50％的Mn，0.5-1.5％的Ni，0.8 -1.5％的Cr，0.8-1.8％的Mo和0.05-0.35％的V，并且（Ni / Mn）比为3.0-10.0。

9. 发明申请

US20100122754A1 High-strength martensite heat resisting cast steel, method of producing the steel, and applications of the steel 审中-公开
标题翻译：高强度马氏体耐热铸钢，钢的生产方法和钢的应用
公开(公告)号：US20100122754A1
公开(公告)日：2010-05-20
申请号：US11528474
申请日：2006-09-28
申请人： Hirotsugu Kawanaka , Masahiko Arai , Hideo Yoda
发明人： Hirotsugu Kawanaka , Masahiko Arai , Hideo Yoda
IPC分类号： C21D8/00 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/54
CPC分类号： F01D5/02 , C21D8/00 , C21D9/28 , C21D9/38 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , F01D5/28 , F05D2230/25 , F05D2230/40
摘要： A high-strength martensite heat resisting steel which has long-time creep rupture strength required for steam temperature condition of 600-630° C. and toughness at room temperature, and which is suitable for use as a material of a steam turbine rotor shaft and as large-sized forged steel with an improvement of hot forgeability. A method of producing the steel and applications of the steel are also provided. The high-strength martensite heat resisting steel contains 0.05-0.20% by mass of C, 0.1% or less of Si, 0.05-0.6% of Mn, 0.1-0.6% of Ni, 9.0-12.0% of Cr, 0.20-0.65% of Mo, 2.0-3.0% of W, 0.1-0.3% of V, 2.0% or less of Co, 0.02-0.20% of Nb, 0.015% or less of B, 0.01-0.10% of N, and 0.015% or less of Al, (W/Mo) being 4.0-10.0.
摘要翻译：一种高温马氏体耐热钢，其蒸汽温度条件为600-630℃所需的长时间蠕变断裂强度，室温下的韧性，适用于汽轮机转子轴的材料，作为大型锻钢，具有提高热锻性能。还提供了钢的制造方法和钢的应用。高强度马氏体耐热钢含有0.05-0.20质量％的C，0.1％或更少的Si，0.05-0.6％的Mn，0.1-0.6％的Ni，9.0-12.0％的Cr，0.20-0.65％的Mo，2.0〜3.0％的W，0.1-0.3％的V，2.0％以下的Co，0.02〜0.20％的Nb，0.015％以下的B，0.01-0.10％的N和0.015％以下的的Al，（W / Mo）为4.0〜10.0。

10. 发明申请

US20100028155A1 Turbine Rotor 审中-公开
标题翻译：涡轮转子
公开(公告)号：US20100028155A1
公开(公告)日：2010-02-04
申请号：US12509537
申请日：2009-07-27
申请人： Eiji Nishioka , Masahiko Arai , Ryusuke Hiruta , Hiroyuki Doi
发明人： Eiji Nishioka , Masahiko Arai , Ryusuke Hiruta , Hiroyuki Doi
IPC分类号： F01D5/14
CPC分类号： F01D5/063 , B23K31/02 , B23K33/004 , F05D2230/232
摘要： An object of the present invention is to provide a turbine rotor with high reliability of strength. The turbine rotor includes two rotors which are connected at the butted portions of the rotors via a weld without forming penetration beads. Specifically, the turbine rotor includes a rotor for low pressure, a rotor for high pressure, and a center hole formed at a center portion of the turbine rotor. The rotors for low pressure and for high pressure are integrated together into a steam turbine rotor by welding respective ends of the rotors to each other. The respective ends of the rotors are in contact with each other via at least two contact faces in a radial direction and an axial direction of the turbine rotor. At least parts of the respective ends are welded together.
摘要翻译：本发明的目的是提供一种高可靠性的涡轮转子。涡轮转子包括两个转子，其通过焊接在转子的对接部分处连接而不形成穿透珠。具体而言，涡轮转子包括低压用转子，高压用转子和形成在涡轮转子的中心部的中心孔。通过将转子的相应端部彼此焊接，用于低压和高压的转子被集成在一起成为蒸汽轮机转子。转子的相应端部经由涡轮机转子的径向方向和轴向方向上的至少两个接触面彼此接触。各端的至少部分焊接在一起。

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