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1. 发明授权

US5008072A Heat resistant steel and gas turbine components composed of the same 失效
标题翻译：耐热钢和燃气轮机组成的组件相同
公开(公告)号：US5008072A
公开(公告)日：1991-04-16
申请号：US352472
申请日：1989-05-16
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Soichi Kurosawa , Katsumi Iijima , Nobuyuki Iizuka , Yosimi Maeno , Shintaro Takahashi , Yasuo Watanabe , Ryo Hiraga
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Soichi Kurosawa , Katsumi Iijima , Nobuyuki Iizuka , Yosimi Maeno , Shintaro Takahashi , Yasuo Watanabe , Ryo Hiraga
IPC分类号： C22C38/44 , C22C38/46
CPC分类号： C22C38/46 , C22C38/44 , Y10S60/909
摘要： A heat resistant steel of the present invention contains 0.05 to 0.2 wt. % of C, less than 0.5 wt. % of Si, less than 0.6 wt. % of Mn, 8 to 13 wt. % of Cr, 1.5 to 3 wt. % of Mo, 2 to 3 wt. % of Ni, 0.05 to 0.3 wt. % of V, 0.02 to 0.2 wt. % in total of either or both of Nb and Ta, 0.02 to 0.1 wt. % of N and the balance substantially Fe. Since a gas turbine of the present invention is constituted by members, such as discs, blades, shafts and so forth, made of alloys of this kind, the gas turbine has a structure in which it is possible to achieve a high level of creep rupture strength and Charpy impact value.

2. 发明授权

US4850187A Gas turbine having components composed of heat resistant steel 失效
标题翻译：具有由耐热钢构成的部件的燃气轮机
公开(公告)号：US4850187A
公开(公告)日：1989-07-25
申请号：US010793
申请日：1987-02-04
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Soichi Kurosawa , Katsumi Iijima , Nobuyuki Iizuka , Yosimi Maeno , Shintaro Takahashi , Yasuo Watanabe , Ryo Hiraga
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Soichi Kurosawa , Katsumi Iijima , Nobuyuki Iizuka , Yosimi Maeno , Shintaro Takahashi , Yasuo Watanabe , Ryo Hiraga
IPC分类号： C22C38/44 , C22C38/46
CPC分类号： C22C38/46 , C22C38/44 , Y10S60/909
摘要： A heat resistant steel of the present invention contains 0.05 to 0.2 wt. % of C, less than 0.5 wt. % of Si, less than 0.6 wt. % of Mn, 8 to 13 wt. % of Cr, 1.5 to 3 wt. % of Mo, 2 to 3 wt. % of Ni, 0.05 to 0.3 wt. % of V, 0.02 to 0.2 wt. % in total of either or both of Nb and Ta, 0.02 to 0.1 wt. % of N and the balance substantially Fe. Since a gas turbine of the present invention is constituted by members, such as discs, blades, shafts and so forth, made of alloys of this kind, the gas turbine has a structure in which it is possible to achieve a high level of creep rupture strength and Charpy impact value.
摘要翻译：本发明的耐热钢含有0.05〜0.2重量％％的C，小于0.5wt。 Si％，小于0.6wt。％的Mn，8〜13wt。 Cr％，1.5〜3wt。％的Mo，2〜3wt。 Ni的比例为0.05〜0.3wt。 V％，0.02〜0.2重量％ Nb和Ta中的任一个或两者的总和为0.02〜0.1重量％。 N％，余量基本上为Fe。由于本发明的燃气轮机由这种合金构成的诸如盘，叶片，轴等的构件构成，所以燃气轮机具有能够实现高水平的蠕变断裂的结构强度和夏比冲击值。

3. 发明授权

US06224334B1 Steam turbine, rotor shaft thereof, and heat resisting steel 失效
标题翻译：蒸汽轮机，转子轴和耐热钢
公开(公告)号：US06224334B1
公开(公告)日：2001-05-01
申请号：US08780441
申请日：1997-01-08
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
IPC分类号： F01D528
CPC分类号： F01D5/147 , C21D9/38 , C21D2211/002 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/141 , F01D5/28 , F01D5/288 , F05D2300/133 , F05D2300/171
摘要： A steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530° C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.
摘要翻译：一种蒸汽轮机，包括集成高压部分和低压部分的转子轴，所述转子轴在其最后阶段具有不小于30英寸的长度，其中第一级叶片处的蒸汽温度为530℃，比率（L / D 限定在转子轴的轴承之间的长度（L）与在最终级叶片的末端之间测量的直径（D）为1.4至2.3。该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

4. 发明授权

US5536146A Combined generator system 失效
标题翻译：组合发电机系统
公开(公告)号：US5536146A
公开(公告)日：1996-07-16
申请号：US305186
申请日：1994-09-13
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
IPC分类号： C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/14 , F01D5/28 , F01D7/00
CPC分类号： F01D5/147 , C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/141 , F01D5/28 , F01D5/288 , C21D2211/002 , F05D2300/133 , F05D2300/171
摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.
摘要翻译：汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃，在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

5. 发明授权

US5569338A Steam turbine rotor shaft thereof and heat resisting steel 失效
标题翻译：蒸汽轮机转子轴和耐热钢
公开(公告)号：US5569338A
公开(公告)日：1996-10-29
申请号：US461521
申请日：1995-06-05
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
IPC分类号： C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/14 , F01D5/28 , C21D9/00
CPC分类号： F01D5/147 , C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/141 , F01D5/28 , F01D5/288 , C21D2211/002 , F05D2300/133 , F05D2300/171
摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.
摘要翻译：汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃，在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

6. 发明授权

US5383768A Steam turbine, rotor shaft thereof, and heat resisting steel 失效
标题翻译：蒸汽轮机，转子轴和耐热钢
公开(公告)号：US5383768A
公开(公告)日：1995-01-24
申请号：US893079
申请日：1992-06-03
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
IPC分类号： C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/14 , F01D5/28
CPC分类号： F01D5/147 , C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/141 , F01D5/28 , F01D5/288 , C21D2211/002 , F05D2300/133 , F05D2300/171
摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.
摘要翻译：汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃，在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

7. 发明授权

US5624235A Steam turbine, rotor shaft thereof, and heat resisting steel 失效
标题翻译：蒸汽轮机，转子轴和耐热钢
公开(公告)号：US5624235A
公开(公告)日：1997-04-29
申请号：US530960
申请日：1995-09-20
申请人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
发明人： Masao Siga , Yutaka Fukui , Mitsuo Kuriyama , Yoshimi Maeno , Masateru Suwa , Ryoichi Kaneko , Takeshi Onoda , Hidefumi Kajiwara , Yasuo Watanabe , Shintaro Takahashi , Toshimi Tan
IPC分类号： C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/14 , F01D5/28
CPC分类号： F01D5/147 , C21D9/38 , C22C38/44 , C22C38/46 , C22C38/48 , F01D5/02 , F01D5/06 , F01D5/141 , F01D5/28 , F01D5/288 , C21D2211/002 , F05D2300/133 , F05D2300/171
摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4 % C, not more than 0.1 % Si, 0.05 to 0.25 % Mn, 1.5 to 2.5 % Ni, 0.8 to 2.5 % Cr, 0.8 to 2.5 % Mo and 0.15 to 0.35 % V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.
摘要翻译：汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃，在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

8. 发明授权

US4414024A Martensitic heat-resistant steel 失效
标题翻译：马氏体耐热钢
公开(公告)号：US4414024A
公开(公告)日：1983-11-08
申请号：US411802
申请日：1982-08-26
申请人： Masao Siga , Seishin Kirihara , Mitsuo Kuriyama , Takatoshi Yosioka , Shintaro Takahashi , Takehiko Yoshida
发明人： Masao Siga , Seishin Kirihara , Mitsuo Kuriyama , Takatoshi Yosioka , Shintaro Takahashi , Takehiko Yoshida
IPC分类号： C22C38/00 , C22C38/22
CPC分类号： C22C38/22
摘要： This invention discloses martensitic heat-resistant steel consisting essentially of 0.1 to 0.2 wt. % of C, up to 0.4 wt. % of Si, up to 1 wt. % of Mn, 9 to 12 wt. % of Cr, 0.1 to 0.3 wt. % of V, 0.02 to 0.25 wt. % of Nb, 0.03 to 0.1 wt. % of N, up to 1 wt. % of Ni, molybdenum and tungsten in amounts falling within the range encompassed by lines connecting a point A (0.7 wt. % of Mo and 1.1 wt. % of W), a point B (1.2 wt. % of Mo and 1.1 wt. % of W), a point C (1.6 wt. % of Mo and 0.33 wt. % of W) and a point D (0.7 wt. % of Mo and 0.33 and wt. % of W) as shown in FIG. 1 and the balance of iron.The martensitic heat-resistant steel in accordance with the present invention is suitable for use in steam turbine blades and rotor shafts.
摘要翻译：本发明公开了马氏体耐热钢，其基本上由0.1〜0.2重量％ C％，高达0.4wt。％的Si，高达1wt。％的Mn，9〜12wt。 Cr％，0.1〜0.3wt。 V％，0.02〜0.25wt。％的Nb，0.03〜0.1wt。 N％，至多1重量％位于连接点A（0.7重量％的Mo和1.1重量％的W）的线所包围的范围内的Ni，钼和钨的％，点B（1.2重量％的Mo和1.1重量％ W的百分比），点C（1.6重量％的Mo和0.33重量％的W）和点D（0.7重量％的Mo，0.33和W的重量百分比）如图1所示。 1和铁的余量。根据本发明的马氏体耐热钢适用于汽轮机叶片和转子轴。

9. 发明授权

US06174132B1 Steam-turbine power plant and steam turbine 失效
标题翻译：蒸汽轮机发电厂和汽轮机
公开(公告)号：US06174132B1
公开(公告)日：2001-01-16
申请号：US09075770
申请日：1998-05-11
申请人： Masao Shiga , Ryo Hiraga , Takeshi Onoda , Nobuo Shimizu , Norio Yamada , Mitsuo Kuriyama , Kishio Hidaka , Shigeyoshi Nakamura , Yutaka Fukui , Toshio Fujita
发明人： Masao Shiga , Ryo Hiraga , Takeshi Onoda , Nobuo Shimizu , Norio Yamada , Mitsuo Kuriyama , Kishio Hidaka , Shigeyoshi Nakamura , Yutaka Fukui , Toshio Fujita
IPC分类号： F02C300
CPC分类号： F01D5/28 , B23K35/004 , B23K35/308 , C21D9/38 , C21D2211/005
摘要： A steam turbine in which principal components to be exposed to high temperatures are all made of ferritic steel, whereby the temperatures of main steam and reheat steam can be increased to 610-660 (° C.). The rotor shaft (23 in FIG. 1) of the steam turbine is made of ferritic forged steel whose 100,000-hour creep rupture strength is at least 15 (kg/mm2) at the service temperature of the rotor shaft. Likewise, the casing (18) is made of ferritic cast steel whose 100,000-hour creep rupture strength is at least 10 (kg/mm2). The steam turbine of high thermal efficiency can be applied to a steam-turbine power plant.
摘要翻译：一个蒸汽轮机，其主要部件暴露在高温下均由铁素体钢制成，主蒸汽和再热蒸汽的温度可以提高到610-660（℃）。蒸汽轮机的转子轴（图1中的23）由铁素体锻钢制成，其在转子轴的使用温度下的100,000小时蠕变断裂强度为至少15（kg / mm 2）。同样，壳体（18）由铁素体铸钢制成，其100,000小时蠕变断裂强度至少为10（kg / mm2）。具有高热效率的蒸汽轮机可以应用于蒸汽轮机发电厂。

10. 发明授权

US6123504A Steam-turbine power plant and steam turbine 失效
标题翻译：蒸汽轮机发电厂和汽轮机
公开(公告)号：US6123504A
公开(公告)日：2000-09-26
申请号：US391945
申请日：1995-02-21
申请人： Masao Shiga , Ryo Hiraga , Takeshi Onoda , Nobuo Shimizu , Norio Yamada , Mitsuo Kuriyama , Kishio Hidaka , Shigeyoshi Nakamura , Yutaka Fukui , Toshio Fujita
发明人： Masao Shiga , Ryo Hiraga , Takeshi Onoda , Nobuo Shimizu , Norio Yamada , Mitsuo Kuriyama , Kishio Hidaka , Shigeyoshi Nakamura , Yutaka Fukui , Toshio Fujita
IPC分类号： F01D5/02 , B23K35/00 , B23K35/30 , C21D9/38 , C22C38/00 , F01D5/14 , F01D5/28 , F01D5/30 , F01D25/00 , F01K7/22
CPC分类号： F01D5/28 , B23K35/308 , C21D9/38 , B23K35/004 , C21D2211/005
摘要： A steam turbine includes a rotor shaft, movable blades assembled on the rotor shaft, fixed blades for guiding inflow of steam to the moving blades, and an inner casing for holding the fixed blades. The rotor shaft and at least a first stage of the movable blades are made of high-strength martensitic steel comprising 0.05-0.20(%) of C, at most 0.15(%) of Si, 0.3-0.7(%) of Mn, 9.5-13(%) of Cr, 0.3-0.7(%) of Ni, 0.05-0.35(%) of V, 0.02-0.15(%) of Nb, 0.01-0.06(%) of N, 0.05-0.5(%) of Mo, 1.0-3.5(%) of W, 2-10(%) of Co and 0.0005-0.03(%) of B and at least 78(%) of Fe (the percentages being given in terms of weight). The inner casings is made of martensitic cast steel comprising 0.06-0.16(%) of C, at most 0.5(%) of Si, at most 1(%) of Mn, 0.2-1.0(%) of Ni, 8-12(%) of Cr, 0.05-0.35(%) of V, 0.01-0.15(%) of Nb, 0.01-0.1(%) of N, at most 1.5% of Mo, 1-4(%) of W and 0.0005-0.03(%) of B and at least 85(%) of Fe (the percentages being given in terms of weight). The rotor shaft has a length of at least 5 (m) and has a minimum diameter of at least 600 (mm) at a portion where the fixed blades are assembled. The first stage of said moving blades has a length of at least 35 (mm) at a blade portion thereof.
摘要翻译：蒸汽涡轮机包括转子轴，组装在转子轴上的可动叶片，用于引导蒸汽流入活动叶片的固定叶片以及用于保持固定叶片的内壳体。转子轴和可动刀片的至少第一级由高强度马氏体钢制成，包括0.05-0.20（％）C，最多0.15（％）的Si，0.3-0.7（％）的Mn，9.5 -13（％）Cr，0.3-0.7（％）Ni，0.05-0.35（％）V，0.02-0.15（％）Nb，0.01-0.06（％）N，0.05-0.5（％）的Mo，1.0-3.5（％）W，2-10（％）Co和0.0005-0.03（％）B和至少78（％）Fe（百分比以重量计）。内壳由马氏体铸钢制成，包括C：0.06-0.16（％），最多0.5（％）Si，最多1（％）Mn，0.2-1.0（％）Ni，8-12（％），V 0.05〜0.35（％），Nb：0.01-0.15（％），N：0.01-0.1（％），Mo：1.5％以下，W：1-4（％）：0.0005〜 B的0.03（％）和Fe的至少85（％）（以重量计）。转子轴具有至少5（m）的长度，并且在组装固定叶片的部分处具有至少600（mm）的最小直径。所述活动叶片的第一阶段在叶片部分处具有至少35（mm）的长度。

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