Development of 12%CrNb Steel for Heavy Duty Gas Turbine Discs
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概要
- 論文の詳細を見る
Effect of adding elements on creep rupture strength and toughness for heat resistant 12%Cr steel of 1300°C class gas turbine disc was investigated. Creep rupture strength was increased by addition of Mo, W, V, Nb, and N. It was found that the addition of Nb causes a significant increase of creep rupture strength due to fine dispersion of NbC and of ductility due to grain refining. Chemical composition of 12Cr-2.5Ni-2Mo-0.2V-0.08Nb-N steel is determined for gas turbine disc application. Preparation of real scale disc was carried out by electro-slag remelting process in order to avoid the segregation of adding elements in ingot. It is resulted that the mechanical properties of real scale disc specimen show the equivalent properties of small specimens. The steel discs for gas turbine were manufactured from the new steel.
- 社団法人 日本鉄鋼協会の論文
- 1995-11-15
著者
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Fukui Y
Obihiro Univ. Agriculture And Veterinary Medicine Obihiro Jpn
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Fukui Y
Laboratory Of Animal Reproduction Obihiro University Of Agriculture And Veterinary Medicine
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Fujise Yoshihiro
Inst. Cetacean Res. Tokyo Jpn
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Hidaka Kishio
Hitachi Research Laboratory Hitachi Ltd.
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Fukui Yutaka
The Institute Of Cetacean Research
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Fukui Yutaka
Department Of Food Production Science Obihiro University Of Agriculture And Veterinary Medicine
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Fukui Y
The Institute Of Cetacean Research
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SHIGA Masao
Hitachi Research Laboratory, Hitachi, Ltd.
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NAKAMURA Shigeyoshi
Hitachi Research Laboratory, Hitachi, Ltd.
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FUKUI Yutaka
Hitachi Research Laboratory, Hitachi, Ltd.
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Shiga Masao
Hitachi Research Laboratory Hitachi Ltd.
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Nakamura S
Hitachi Research Laboratory Hitachi Ltd.
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Nakamura Shigeyoshi
Hitachi Research Laboratory
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