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JPS5558352A - Mixed pressure type turbine rotor - Google Patents

Mixed pressure type turbine rotor

Info

Publication number
JPS5558352A
JPS5558352A JP12859878A JP12859878A JPS5558352A JP S5558352 A JPS5558352 A JP S5558352A JP 12859878 A JP12859878 A JP 12859878A JP 12859878 A JP12859878 A JP 12859878A JP S5558352 A JPS5558352 A JP S5558352A
Authority
JP
Japan
Prior art keywords
rotor
turbine rotor
type turbine
pressure type
mixed pressure
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
JP12859878A
Other languages
Japanese (ja)
Other versions
JPS6151025B2 (en
Inventor
Kanji Kawaguchi
Mitsuo Kawai
Matsuo Miyazaki
Osamu Watanabe
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 JP12859878A priority Critical patent/JPS5558352A/en
Publication of JPS5558352A publication Critical patent/JPS5558352A/en
Publication of JPS6151025B2 publication Critical patent/JPS6151025B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To provide the title rotor having a specified compsn. of C, Si, Mn, Cr, Mo, V, Ni, Nb, N, etc. and exhibiting superior strength at high and low temps. and superior toughness at low temps.
CONSTITUTION: The rotor is manufactured by melting an element mixt. consisting of, by wt., C 0.05W0.3%, Si≤0.1%, Mn 0.3W1.5%, Cr 9W13%, Mo 0.5W2%, V 0.1W0.5%, Ni 1W2.5%, Nb 0.01W0.5%, N 0.01W0.1%, and the balance Fe, etc. followed by vacuum deoxidation, casting, heating to a predetermined temp., conversion into an austenite structure, tempering and final conversion into a martensite structure. The chromium equivalent of the compsn. represented by the equation is pref. regulated to 11 or below. This alloy is suitable for use as a material for a mixed press. type turbine rotor which is considered to be unsuitable for a conventional rotor material.
COPYRIGHT: (C)1980,JPO&Japio
JP12859878A 1978-10-20 1978-10-20 Mixed pressure type turbine rotor Granted JPS5558352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12859878A JPS5558352A (en) 1978-10-20 1978-10-20 Mixed pressure type turbine rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12859878A JPS5558352A (en) 1978-10-20 1978-10-20 Mixed pressure type turbine rotor

Publications (2)

Publication Number Publication Date
JPS5558352A true JPS5558352A (en) 1980-05-01
JPS6151025B2 JPS6151025B2 (en) 1986-11-07

Family

ID=14988723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12859878A Granted JPS5558352A (en) 1978-10-20 1978-10-20 Mixed pressure type turbine rotor

Country Status (1)

Country Link
JP (1) JPS5558352A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024353A (en) * 1983-07-20 1985-02-07 Japan Steel Works Ltd:The 12%Cr heat resistant steel
EP0237170A2 (en) * 1986-02-05 1987-09-16 Hitachi, Ltd. Heat resistant steel and gas turbine composed of the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024353A (en) * 1983-07-20 1985-02-07 Japan Steel Works Ltd:The 12%Cr heat resistant steel
EP0237170A2 (en) * 1986-02-05 1987-09-16 Hitachi, Ltd. Heat resistant steel and gas turbine composed of the same

Also Published As

Publication number Publication date
JPS6151025B2 (en) 1986-11-07

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