JPS54102220A - Tarbine rotor material - Google Patents
Tarbine rotor materialInfo
- Publication number
- JPS54102220A JPS54102220A JP894278A JP894278A JPS54102220A JP S54102220 A JPS54102220 A JP S54102220A JP 894278 A JP894278 A JP 894278A JP 894278 A JP894278 A JP 894278A JP S54102220 A JPS54102220 A JP S54102220A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum carbon
- carbon deoxidation
- toughness
- temp
- superior
- 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
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To manufacture a turbine rotor material with superior creep strength at high temp. and superior low temp. toughness by subjecting a steel contg. specific alloying elements to vacuum carbon deoxidation.
CONSTITUTION: A molten alloy steel contg. Cr; 10W13%, Mn; 0.3W1.5%, MO; 0.5W1.5%, Si<0.2%, Ni; 0.1W1.0%, Ta; 0.03W1.0%, V; 0.15W0.5%, C; 0.1W 0.3% and N; 0.01W0.1% is subjected to vacuum carbon deoxidation. The deoxidized steed is cast, forged at 1100W1300°C, and heated at 1000W1150°C to form a perfect asstenite structure. It is then quenched to 100°C to convert the structure into a uniform martensite one, and held at around 100°C to be homogenized. Tempering is further carried out at 550W650°C to obtain a tempered martensite structure. Ta(CN) is finely dispersion precipitated in the structure to give superior creep strength at high temp. The vacuum carbon deoxidation reduces the amt. of Si added as a deoxidizer, thus minimizing SiO2 type inclusions in the alloy and enhancing low temp. toughness.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP894278A JPS6031898B2 (en) | 1978-01-31 | 1978-01-31 | Turbine rotor material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP894278A JPS6031898B2 (en) | 1978-01-31 | 1978-01-31 | Turbine rotor material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54102220A true JPS54102220A (en) | 1979-08-11 |
| JPS6031898B2 JPS6031898B2 (en) | 1985-07-25 |
Family
ID=11706715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP894278A Expired JPS6031898B2 (en) | 1978-01-31 | 1978-01-31 | Turbine rotor material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031898B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56116858A (en) * | 1980-02-20 | 1981-09-12 | Toshiba Corp | Steam turbine rotor |
| JPS57165603A (en) * | 1981-04-03 | 1982-10-12 | Hitachi Ltd | Rotor shaft for steam turbine |
| US4564392A (en) * | 1983-07-20 | 1986-01-14 | The Japan Steel Works Ltd. | Heat resistant martensitic stainless steel containing 12 percent chromium |
| JPH02161104A (en) * | 1989-11-24 | 1990-06-21 | Hitachi Ltd | Manufacture of steam turbine rotor shaft |
| CN106278114A (en) * | 2016-08-11 | 2017-01-04 | 芜湖东新磁电有限公司 | A kind of rotor magnetic steel rotor material and preparation method thereof |
-
1978
- 1978-01-31 JP JP894278A patent/JPS6031898B2/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56116858A (en) * | 1980-02-20 | 1981-09-12 | Toshiba Corp | Steam turbine rotor |
| JPS6054385B2 (en) * | 1980-02-20 | 1985-11-29 | 株式会社東芝 | heat resistant steel |
| JPS57165603A (en) * | 1981-04-03 | 1982-10-12 | Hitachi Ltd | Rotor shaft for steam turbine |
| JPS6345483B2 (en) * | 1981-04-03 | 1988-09-09 | Hitachi Ltd | |
| US4564392A (en) * | 1983-07-20 | 1986-01-14 | The Japan Steel Works Ltd. | Heat resistant martensitic stainless steel containing 12 percent chromium |
| JPH02161104A (en) * | 1989-11-24 | 1990-06-21 | Hitachi Ltd | Manufacture of steam turbine rotor shaft |
| CN106278114A (en) * | 2016-08-11 | 2017-01-04 | 芜湖东新磁电有限公司 | A kind of rotor magnetic steel rotor material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6031898B2 (en) | 1985-07-25 |
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