JPS5684446A - Turbine rotor material for geothermal power generation - Google Patents

Turbine rotor material for geothermal power generation

Info

Publication number
JPS5684446A
JPS5684446A JP15976579A JP15976579A JPS5684446A JP S5684446 A JPS5684446 A JP S5684446A JP 15976579 A JP15976579 A JP 15976579A JP 15976579 A JP15976579 A JP 15976579A JP S5684446 A JPS5684446 A JP S5684446A
Authority
JP
Japan
Prior art keywords
rotor material
turbine rotor
geothermal power
power generation
texture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15976579A
Other languages
Japanese (ja)
Other versions
JPS6348942B2 (en
Inventor
Kanji Kawaguchi
Mitsuo Kawai
Osamu Watanabe
Yoshio Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15976579A priority Critical patent/JPS5684446A/en
Publication of JPS5684446A publication Critical patent/JPS5684446A/en
Publication of JPS6348942B2 publication Critical patent/JPS6348942B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To obtain a turbine rotor material for geothermal power generation which is improved in its notch brittleness, corrosion resistance, and corrosion fatigue strength by designating the amounts of C, Si, Mn, Cr, Mo, and Nb or Ta present in a steel composition.
CONSTITUTION: A turbine rotor material contains 0.05W0.25wt% C, 0.2wt% or less Si, 0.1W1.0wt% Mn, 10.0W14.0wt% Cr, 0.3W2.0wt% Mo, 0.01W0.2wt% Nb or Ta or both, and Fe and impurities, together, as needed, with 0.01W0.1wt% N component. The rotor material is manufactured by a procedure in which given amounts of alloying elements are melted, deoxidized, case, machined, heated for a sufficient period of time to convert into austenite texture, and then cooled. During the cooling process, the metal texture turns into practically homogeneous martensite texture. The use of the alloy enables to design a geothermal power plant having excellent safety.
COPYRIGHT: (C)1981,JPO&Japio
JP15976579A 1979-12-11 1979-12-11 Turbine rotor material for geothermal power generation Granted JPS5684446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15976579A JPS5684446A (en) 1979-12-11 1979-12-11 Turbine rotor material for geothermal power generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15976579A JPS5684446A (en) 1979-12-11 1979-12-11 Turbine rotor material for geothermal power generation

Publications (2)

Publication Number Publication Date
JPS5684446A true JPS5684446A (en) 1981-07-09
JPS6348942B2 JPS6348942B2 (en) 1988-10-03

Family

ID=15700770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15976579A Granted JPS5684446A (en) 1979-12-11 1979-12-11 Turbine rotor material for geothermal power generation

Country Status (1)

Country Link
JP (1) JPS5684446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62218602A (en) * 1986-03-20 1987-09-26 Hitachi Ltd Gas turbine
JP2013159827A (en) * 2012-02-06 2013-08-19 Nkktubes Kk Martensitic stainless steel for seamless oil well pipe and method of manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62218602A (en) * 1986-03-20 1987-09-26 Hitachi Ltd Gas turbine
JP2013159827A (en) * 2012-02-06 2013-08-19 Nkktubes Kk Martensitic stainless steel for seamless oil well pipe and method of manufacturing the same

Also Published As

Publication number Publication date
JPS6348942B2 (en) 1988-10-03

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