GB1516561A - Method of prolonging the service life of metallic bodies - Google Patents
Method of prolonging the service life of metallic bodiesInfo
- Publication number
- GB1516561A GB1516561A GB2259276A GB2259276A GB1516561A GB 1516561 A GB1516561 A GB 1516561A GB 2259276 A GB2259276 A GB 2259276A GB 2259276 A GB2259276 A GB 2259276A GB 1516561 A GB1516561 A GB 1516561A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- hours
- service life
- subjecting
- june
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Forging (AREA)
- Powder Metallurgy (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
1516561 Heat-treating alloys BBC BROWN BOVERI & CO Ltd 1 June 1976 [3 June 1975] 22592/76 Heading C7A [Also in Division B3] The service life of a turbine blade &c. permanently elongated by mechanical and/or thermal stress but without superficial cracks is extended by subjecting the blade &c. to hot isostatic pressing. Permanent elongation is thereby reduced from Al to Cl, after which the blade may again be used. Further isostatic pressing may restore the blade after further service intervals t 2 , t 3 . Alloy blades of nickel, cobalt, ferritic steel and titanium alloy are specified which are subjected to pressures above 1000 bar at temperatures close to, but below, the temperatures above which grain growth occurs. In Example 1, a rejected blade is restored by subjecting it to isostatic pressures of 2000 bar for 2 hours at 1190‹C. Solution treatment for 2 hours at 1120‹C and air-cooling follows, then annealing for 24 hours at 845‹C and further air-cooling.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH710975A CH594480A5 (en) | 1975-06-03 | 1975-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1516561A true GB1516561A (en) | 1978-07-05 |
Family
ID=4320105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2259276A Expired GB1516561A (en) | 1975-06-03 | 1976-06-01 | Method of prolonging the service life of metallic bodies |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS51147462A (en) |
CH (1) | CH594480A5 (en) |
DE (1) | DE2528763A1 (en) |
FR (1) | FR2313459A1 (en) |
GB (1) | GB1516561A (en) |
SE (1) | SE7606180L (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4753686A (en) * | 1984-11-08 | 1988-06-28 | Societe Nationale D'etude Et De Construction De Moteur D'aviation "S.N.E.C.M.A." | Regeneration of nickel-based superalloy parts damaged by creep |
CN111118272A (en) * | 2020-02-12 | 2020-05-08 | 广东省材料与加工研究所 | High-performance 17-4PH stainless steel material and high-pressure heat treatment method, manufacturing method and application thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2048146B (en) * | 1979-04-25 | 1982-12-15 | Us Energy | Process for treating weldments |
-
1975
- 1975-06-03 CH CH710975A patent/CH594480A5/xx not_active IP Right Cessation
- 1975-06-27 DE DE19752528763 patent/DE2528763A1/en not_active Withdrawn
-
1976
- 1976-06-01 JP JP6402076A patent/JPS51147462A/en active Pending
- 1976-06-01 SE SE7606180A patent/SE7606180L/en not_active Application Discontinuation
- 1976-06-01 FR FR7616504A patent/FR2313459A1/en active Pending
- 1976-06-01 GB GB2259276A patent/GB1516561A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4753686A (en) * | 1984-11-08 | 1988-06-28 | Societe Nationale D'etude Et De Construction De Moteur D'aviation "S.N.E.C.M.A." | Regeneration of nickel-based superalloy parts damaged by creep |
CN111118272A (en) * | 2020-02-12 | 2020-05-08 | 广东省材料与加工研究所 | High-performance 17-4PH stainless steel material and high-pressure heat treatment method, manufacturing method and application thereof |
CN111118272B (en) * | 2020-02-12 | 2022-01-04 | 广东省科学院新材料研究所 | High-performance 17-4PH stainless steel material and high-pressure heat treatment method, manufacturing method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
CH594480A5 (en) | 1978-01-13 |
DE2528763A1 (en) | 1976-12-16 |
SE7606180L (en) | 1976-12-04 |
FR2313459A1 (en) | 1976-12-31 |
JPS51147462A (en) | 1976-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |