JPS5550991A - Corrosion preventive piece joining method of turbine blade - Google Patents
Corrosion preventive piece joining method of turbine bladeInfo
- Publication number
- JPS5550991A JPS5550991A JP12252778A JP12252778A JPS5550991A JP S5550991 A JPS5550991 A JP S5550991A JP 12252778 A JP12252778 A JP 12252778A JP 12252778 A JP12252778 A JP 12252778A JP S5550991 A JPS5550991 A JP S5550991A
- Authority
- JP
- Japan
- Prior art keywords
- piece
- metal
- anticorrosive
- stress
- buffer part
- 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.)
- Pending
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To prevent stress corrosion cracking without having to form each member in special shape or making special treatment, by providing stress buffer part in the anticorrosive piece starting end part.
CONSTITUTION: A corrosion resistant member 2 is welded, by electron beam or the like, to a turbine blade part 1 which may be corroded by water drops in the working vapor, through an intermediate medium metal 3. The position starting shield by an anticorrosive piece 2 is built up by TIG welding, by using a metal which is more easily deformed plastically than the corrosive piece, for example, the same Inconel as the intermediate medium metal 3, as the filler metal, and a stress buffer part 6 is formed. Next, with the main purpose of approaching the blade member welding heat affected zone to the property of the blade base metal, refining heat treatment is applied. In this state, since the coefficient of thermal expansion of the anticorrosive piece is larger than that of other parts, tensile stress remains in the anticorrosive piece. Hence, the stress buffer part is subjected to plastic deformation by peening, and, to the contrary, compressive stress is applied to the anticorrosive piece.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12252778A JPS5550991A (en) | 1978-10-06 | 1978-10-06 | Corrosion preventive piece joining method of turbine blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12252778A JPS5550991A (en) | 1978-10-06 | 1978-10-06 | Corrosion preventive piece joining method of turbine blade |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5550991A true JPS5550991A (en) | 1980-04-14 |
Family
ID=14838049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12252778A Pending JPS5550991A (en) | 1978-10-06 | 1978-10-06 | Corrosion preventive piece joining method of turbine blade |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5550991A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03269068A (en) * | 1990-03-19 | 1991-11-29 | Dainichiseika Color & Chem Mfg Co Ltd | Coloring composition for image recording |
GB2555211A (en) * | 2016-08-29 | 2018-04-25 | Safran Aircraft Engines | Turbomachine vane provided with a structure reducing the risk of cracks |
-
1978
- 1978-10-06 JP JP12252778A patent/JPS5550991A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03269068A (en) * | 1990-03-19 | 1991-11-29 | Dainichiseika Color & Chem Mfg Co Ltd | Coloring composition for image recording |
GB2555211A (en) * | 2016-08-29 | 2018-04-25 | Safran Aircraft Engines | Turbomachine vane provided with a structure reducing the risk of cracks |
GB2555211B (en) * | 2016-08-29 | 2021-10-20 | Safran Aircraft Engines | Turbomachine vane provided with a structure reducing the risk of cracks |
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