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Titanium Steam Turbine Blading#R##N#Workshop Proceedings Palo Alto, California, 9–10 November 1988 | 1990

CHARACTERISTICS OF TITANIUM ALLOY 40 INCH LAST STAGE BLADE OF STEAM TURBINE

Katsumi Iijima; Masao Shiga; Mitsuo Kuriyama; Yutaka Fukui; Ryoichi Kaneko; Ryoichi Sasaki

ABSTRACT Enlargement of the last stage blade (LSB) is one of the most effective ways to improve thermal efficiency. This requires development or selection of the materials which have a high tensile strength-to-weight ratio suitable for long low pressure LSBs of the steam turbine. It was confirmed that Ti-6Al-4V alloy was suited to a 40 inch last stage blade for 3600 rpm turbine instead of 12Cr materials. Shot peening was effective to improve high cycle fatigue strength. A trial 40 inch blade which was manufactured from Ti-6Al-4V alloy had offered excellent characteristics to satisfy the specified requirements.


Archive | 1988

Method and apparatus for estimating life expectancy of mechanical structures

Shigeo Sakurai; Sadao Umezawa; Saburo Usami; Hiroshi Miyata; Hajime Toriya; Kuniyoshi Tsubouchi; Ryoichi Kaneko


Archive | 1985

Turbine stage structure

Tetsuo Sasada; Takeshi Sato; Haruo Urushidani; Katsukuni Hisano; Ryoichi Kaneko; Kazuo Ikeuchi; Kunio Tsuji


Archive | 1984

Method and apparatus for monitoring cracks of a rotatable body

Kazuo Sato; Kouki Shiohata; Osami Matsushita; Katsuaki Kikuchi; Masakazu Takasumi; Ichiya Sato; Ryoichi Kaneko


Archive | 2001

Steam turbine rotor shaft

Takatoshi Yoshioka; Seishin Kirihara; Masao Shiga; Katsumi Iijima; Katsukuni Hisano; Ryoichi Kaneko


Archive | 1995

Steam turbine, rotor shaft thereof, and heat resisting steel

Masao Siga; Yutaka Fukui; Mitsuo Kuriyama; Yoshimi Maeno; Masateru Suwa; Ryoichi Kaneko; Takeshi Onoda; Hidefumi Kajiwara; Yasuo Watanabe; Shintaro Takahashi; Toshimi Tan


Archive | 1984

Main steam inlet structure for steam turbine

Hitoshi Isa; Ryoichi Kaneko; Katsuto Kashiwahara


Archive | 1989

System for administering life of plant

Shigeo Sakurai; Hiroshi Miyata; Toshimi Tan; Ryoichi Kaneko


Archive | 1990

Steam turbine rotor shaft and heat-resisting steel therefor

Masao Siga; Yutaka Fukui; Mitsuo Kuriyama; Yoshimi Maeno; Masateru Suwa; Ryoichi Kaneko; Takeshi Onoda; Hidefumi Kajiwara; Yasuo Watanabe; Shintaro Takahashi; Toshimi Tan


Archive | 1984

Casing of steam turbine

Ryoichi Kaneko; Shigeo Sakurai; Naoaki Shibashita; Junshi Shimomura; Hajime Toritani

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