Power plants – Combustion products used as motive fluid – Plural combustion products generators in ring coaxial with...
Patent
1987-02-04
1989-07-25
Yee, Deborah
Power plants
Combustion products used as motive fluid
Plural combustion products generators in ring coaxial with...
60909, 416241R, 148325, 148327, 148442, 148427, 148425, 148334, F02C 304
Patent
active
048501875
ABSTRACT:
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.
REFERENCES:
patent: 4127410 (1978-11-01), Merrick et al.
patent: 4497670 (1985-02-01), Siga et al.
patent: 4553386 (1985-11-01), Berg
Fukui Yutaka
Hiraga Ryo
Iijima Katsumi
Iizuka Nobuyuki
Kuriyama Mitsuo
Hitachi , Ltd.
Yee Deborah
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