Matches in SemOpenAlex for { <https://semopenalex.org/work/W3009003521> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W3009003521 abstract "Nickel and cobalt-based superalloys with a γ-γ' microstructure are known for their excellent creep resistance at high temperatures. Their microstructure is engineered using different alloying elements, that partition either to the fcc γ matrix or to the ordered γ' phase. In the present work the effect of alloying elements on their segregation behaviour in nickel-based superalloys, diffusion in cobalt-based superalloys and the temperature dependent solid solution strengthening in nickel-based alloys is investigated. The effect of dendritic segregation on the local mechanical properties of individual phases in the as-cast, heat treated and creep deformed state of a nickel-based superalloy is investigated. The local chemical composition is characterized using Electron Probe Micro Analysis and then correlated with the mechanical properties of individual phases using nanoindentation. Furthermore, the temperature dependant solid solution hardening contribution of Ta, W & Re towards fcc nickel is studied. The room temperature hardening is determined by a diffusion couple approach using nanoindentation and energy dispersive X-ray analysis for relating hardness to the chemical composition. The high temperature properties are determined using compression strain rate jump tests. The results show that at lower temperatures, the solute size is prevalent and the elements with the largest size difference with nickel, induce the greatest hardening consistent with a classical solid solution strengthening theory. At higher temperatures, the solutes interact with the dislocations such that the slowest diffusing solute poses maximal resistance to dislocation glide and climb. Lastly, the diffusion of different technically relevant solutes in fcc cobalt is investigated using diffusion couples. The results show that the large atoms diffuse faster in cobalt-based superalloys similar to their nickel-based counterparts." @default.
- W3009003521 created "2020-03-06" @default.
- W3009003521 creator A5018619964 @default.
- W3009003521 date "2016-01-01" @default.
- W3009003521 modified "2023-09-23" @default.
- W3009003521 title "Solid Solution Strengthening and Diffusion in Nickel- and Cobalt-based Superalloys" @default.
- W3009003521 hasPublicationYear "2016" @default.
- W3009003521 type Work @default.
- W3009003521 sameAs 3009003521 @default.
- W3009003521 citedByCount "0" @default.
- W3009003521 crossrefType "dissertation" @default.
- W3009003521 hasAuthorship W3009003521A5018619964 @default.
- W3009003521 hasConcept C121332964 @default.
- W3009003521 hasConcept C138999460 @default.
- W3009003521 hasConcept C149912024 @default.
- W3009003521 hasConcept C159985019 @default.
- W3009003521 hasConcept C191897082 @default.
- W3009003521 hasConcept C192562407 @default.
- W3009003521 hasConcept C193705005 @default.
- W3009003521 hasConcept C207055975 @default.
- W3009003521 hasConcept C2779227376 @default.
- W3009003521 hasConcept C44255700 @default.
- W3009003521 hasConcept C49326732 @default.
- W3009003521 hasConcept C504270822 @default.
- W3009003521 hasConcept C515602321 @default.
- W3009003521 hasConcept C87976508 @default.
- W3009003521 hasConcept C97355855 @default.
- W3009003521 hasConceptScore W3009003521C121332964 @default.
- W3009003521 hasConceptScore W3009003521C138999460 @default.
- W3009003521 hasConceptScore W3009003521C149912024 @default.
- W3009003521 hasConceptScore W3009003521C159985019 @default.
- W3009003521 hasConceptScore W3009003521C191897082 @default.
- W3009003521 hasConceptScore W3009003521C192562407 @default.
- W3009003521 hasConceptScore W3009003521C193705005 @default.
- W3009003521 hasConceptScore W3009003521C207055975 @default.
- W3009003521 hasConceptScore W3009003521C2779227376 @default.
- W3009003521 hasConceptScore W3009003521C44255700 @default.
- W3009003521 hasConceptScore W3009003521C49326732 @default.
- W3009003521 hasConceptScore W3009003521C504270822 @default.
- W3009003521 hasConceptScore W3009003521C515602321 @default.
- W3009003521 hasConceptScore W3009003521C87976508 @default.
- W3009003521 hasConceptScore W3009003521C97355855 @default.
- W3009003521 hasLocation W30090035211 @default.
- W3009003521 hasOpenAccess W3009003521 @default.
- W3009003521 hasPrimaryLocation W30090035211 @default.
- W3009003521 hasRelatedWork W1931166430 @default.
- W3009003521 hasRelatedWork W1968630884 @default.
- W3009003521 hasRelatedWork W1999851696 @default.
- W3009003521 hasRelatedWork W2022533766 @default.
- W3009003521 hasRelatedWork W2048600873 @default.
- W3009003521 hasRelatedWork W2066332881 @default.
- W3009003521 hasRelatedWork W2067040338 @default.
- W3009003521 hasRelatedWork W2088861626 @default.
- W3009003521 hasRelatedWork W2106714368 @default.
- W3009003521 hasRelatedWork W2109940155 @default.
- W3009003521 hasRelatedWork W2138276344 @default.
- W3009003521 hasRelatedWork W2277354572 @default.
- W3009003521 hasRelatedWork W2310230567 @default.
- W3009003521 hasRelatedWork W2612303115 @default.
- W3009003521 hasRelatedWork W2946013199 @default.
- W3009003521 hasRelatedWork W3007842466 @default.
- W3009003521 hasRelatedWork W3126971828 @default.
- W3009003521 hasRelatedWork W3170834158 @default.
- W3009003521 hasRelatedWork W775355960 @default.
- W3009003521 hasRelatedWork W3028238817 @default.
- W3009003521 isParatext "false" @default.
- W3009003521 isRetracted "false" @default.
- W3009003521 magId "3009003521" @default.
- W3009003521 workType "dissertation" @default.