GB1516561A - Method of prolonging the service life of metallic bodies - Google Patents

Method of prolonging the service life of metallic bodies

Info

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
Application number
GB2259276A
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Publication of GB1516561A publication Critical patent/GB1516561A/en
Expired legal-status Critical Current

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.
GB2259276A 1975-06-03 1976-06-01 Method of prolonging the service life of metallic bodies Expired GB1516561A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2048146B (en) * 1979-04-25 1982-12-15 Us Energy Process for treating weldments

Cited By (3)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
Mughrabi Dislocations in fatigue
US4302256A (en) Method of improving mechanical properties of alloy parts
GB1516561A (en) Method of prolonging the service life of metallic bodies
GB1234866A (en) Thermal treatment of aluminium-magnesium alloy for improvement of stress-corrosion properties
EP0031800B1 (en) Austenitic, precipitation hardenable stainless steel
GB1248492A (en) Alloy heat treatment
GB1345915A (en) High conductivity high strength copper alloys
US3341373A (en) Method of treating zirconium-base alloys
Peterson Isothermal transformation study of some uranium-base alloys
US4125417A (en) Method of salvaging and restoring useful properties to used and retired metal articles
GB1322135A (en) Method of producing a minimum-ridging type
GB1466517A (en) Manufacture of dynamo and electrical bands
US3740274A (en) High post-irradiation ductility process
GB2098119A (en) Method of improving mechanical properties of alloy parts
GB1513407A (en) Copper base alloys and processing same
US4820354A (en) Method for producing a workpiece from a corrosion- and oxidation-resistant Ni/Al/Si/B alloy
JPS61163254A (en) Production of strip made of zirconium alloy
GB643367A (en) Improvements in or relating to the thermal treatment of steel and products thereof
ES466565A1 (en) Perfected procedure of laminated wire treatment. (Machine-translation by Google Translate, not legally binding)
GB1125328A (en) Heat treatment of austenitic stainless steels
Maziasz et al. Designing precipitation-strengthened iron-aluminides for high-temperature applications
Hirschhorn et al. Cellular precipitation in niobium-chromium alloys
SU407976A1 (en)
SU419572A1 (en) METHOD FOR PROCESSING DISPERSION-TENDING ALLOY PA PA PICKEL OSPOVE
Iwabuchi et al. Estimation of Long-Term Degradation of Cr--Mo--V Steel Castings

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