Matches in SemOpenAlex for { <https://semopenalex.org/work/W39712419> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W39712419 abstract "The introduction of single crystal casting techniques has led to the development of existing nickel-base superalloys to produce materials with optimum mechanical properties in the single crystal condition. As single crystals are known to be anisotropic, a study is needed to determine the general mechanical properties of these materials, and determine the effects of crystal orientation upon them. A study has been carried out to identify the effect of orientation and temperature on the creep and fatigue properties of a development single crystal superalloy, SRR 99. Creep testing and crystal rotation experiments have been made on SRR 99 and an earlier development alloy, SRR 9. Fatigue experiments at elevated temperatures have been carried out on both notched and un-notched specimens of alloy SRR 99. To aid in this analysis, several analytical techniques have been employed including Laue x-ray orientation analysis, measurement of strain by photographic methods and microstructural examination. Crystal rotation experiments have indicated that shear of 1 precipitates by lbrace111rbrace slip systems is operative during primary creep deformation at temperatures of 750oC and 850oC. The effect of orientation variation obtained by standard casting practices was not found to be significant. Creep rupture was found to be associated with multiple crack initiation from micropores. Fatigue crack initiation in un-notched specimens was found to be related to microporosity and microstructural defects. Failure was predominantly by crystallographic crack growth on lbrace111rbrace planes. The use of linear elastic fracture mechanics to describe fatigue crack propagation in alloy SRR 99 was found to be acceptable at temperatures up to 850oC. Variation of temperature, frequency and crystal orientation was found to have only moderate effect upon crack propagation rates." @default.
- W39712419 created "2016-06-24" @default.
- W39712419 creator A5089736953 @default.
- W39712419 date "1987-01-01" @default.
- W39712419 modified "2023-09-27" @default.
- W39712419 title "Creep and fatigue of a single crystal nickel base superalloy" @default.
- W39712419 hasPublicationYear "1987" @default.
- W39712419 type Work @default.
- W39712419 sameAs 39712419 @default.
- W39712419 citedByCount "0" @default.
- W39712419 crossrefType "dissertation" @default.
- W39712419 hasAuthorship W39712419A5089736953 @default.
- W39712419 hasConcept C121332964 @default.
- W39712419 hasConcept C149912024 @default.
- W39712419 hasConcept C159985019 @default.
- W39712419 hasConcept C185592680 @default.
- W39712419 hasConcept C191897082 @default.
- W39712419 hasConcept C192562407 @default.
- W39712419 hasConcept C195268267 @default.
- W39712419 hasConcept C207055975 @default.
- W39712419 hasConcept C2780026712 @default.
- W39712419 hasConcept C59085676 @default.
- W39712419 hasConcept C62520636 @default.
- W39712419 hasConcept C73922627 @default.
- W39712419 hasConcept C8010536 @default.
- W39712419 hasConcept C85725439 @default.
- W39712419 hasConcept C96035792 @default.
- W39712419 hasConcept C97355855 @default.
- W39712419 hasConceptScore W39712419C121332964 @default.
- W39712419 hasConceptScore W39712419C149912024 @default.
- W39712419 hasConceptScore W39712419C159985019 @default.
- W39712419 hasConceptScore W39712419C185592680 @default.
- W39712419 hasConceptScore W39712419C191897082 @default.
- W39712419 hasConceptScore W39712419C192562407 @default.
- W39712419 hasConceptScore W39712419C195268267 @default.
- W39712419 hasConceptScore W39712419C207055975 @default.
- W39712419 hasConceptScore W39712419C2780026712 @default.
- W39712419 hasConceptScore W39712419C59085676 @default.
- W39712419 hasConceptScore W39712419C62520636 @default.
- W39712419 hasConceptScore W39712419C73922627 @default.
- W39712419 hasConceptScore W39712419C8010536 @default.
- W39712419 hasConceptScore W39712419C85725439 @default.
- W39712419 hasConceptScore W39712419C96035792 @default.
- W39712419 hasConceptScore W39712419C97355855 @default.
- W39712419 hasLocation W397124191 @default.
- W39712419 hasOpenAccess W39712419 @default.
- W39712419 hasPrimaryLocation W397124191 @default.
- W39712419 hasRelatedWork W1540557719 @default.
- W39712419 hasRelatedWork W182802650 @default.
- W39712419 hasRelatedWork W1957858451 @default.
- W39712419 hasRelatedWork W1984832523 @default.
- W39712419 hasRelatedWork W2002021134 @default.
- W39712419 hasRelatedWork W2020627503 @default.
- W39712419 hasRelatedWork W2030146899 @default.
- W39712419 hasRelatedWork W2337118748 @default.
- W39712419 hasRelatedWork W2348991396 @default.
- W39712419 hasRelatedWork W2378883070 @default.
- W39712419 hasRelatedWork W2493204055 @default.
- W39712419 hasRelatedWork W2628727514 @default.
- W39712419 hasRelatedWork W2768761386 @default.
- W39712419 hasRelatedWork W2769184006 @default.
- W39712419 hasRelatedWork W2791958688 @default.
- W39712419 hasRelatedWork W2793643058 @default.
- W39712419 hasRelatedWork W2885661344 @default.
- W39712419 hasRelatedWork W2936365351 @default.
- W39712419 hasRelatedWork W2945595572 @default.
- W39712419 hasRelatedWork W1485235904 @default.
- W39712419 isParatext "false" @default.
- W39712419 isRetracted "false" @default.
- W39712419 magId "39712419" @default.
- W39712419 workType "dissertation" @default.