Matches in SemOpenAlex for { <https://semopenalex.org/work/W333641246> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W333641246 abstract "The microstructure and consequently the mechanical properties of titanium alloys are highly dependent on the temperature history endured by the material. The manufacturing process of metal deposition induces repetitive cooling and heating in the material determining a specific microstructure. The presented study is devoted to developing and implementing a microstructure model for Ti-6Al-4V intended to be coupled to a thermo- mechanical model of the metal deposition process. Microstructural analysis of the metal deposited samples was first performed to understand the formed microstructure. A set of representative parameters for microstructure modelling were then selected as representative for the known impact of Ti-6Al-4V microstructure on mechanical properties. Evolution equations for these parameters were implemented for thermal finite element analysis of the process. Six representative state variables are modelled: the phase volume fraction of total alpha, beta, Widmanstatten alpha, grain boundary alpha, martensite alpha, and the alpha lath thickness. Heating, cooling and repeated re-heating involved in the process of metal deposition are taken into account in the model. The phase transformations were modelled based on a diffusionnal theory described by a Johnson-Mehl-Avrami formulation, as well as diffusionless transformations for the martensite alpha formation and the beta reformation during reheating. The Arrhenius equation is applied as a simplification to model temperature dependent alpha lath size calculation. Grain growth is not included in the present formulation, but would have to be added for capturing alpha lath coarsening during long term heat treatment. The temperature history during robotised tungsten inert gas deposition welding is simulated together with the microstructure. The implementation of the model handles well the complex cyclic thermal loading from the metal deposition process. A particular banded structure observed in the metal deposited microstructure is partially explained using the proposed microstructure model. It is concluded that although qualitatively interesting results have been achieved, further calibration testing over a wider range of temperature histories must be performed to improve the transformation kinetic parameters for reliable quantitative predictions of the microstructure." @default.
- W333641246 created "2016-06-24" @default.
- W333641246 creator A5028628257 @default.
- W333641246 creator A5039607042 @default.
- W333641246 date "2006-01-01" @default.
- W333641246 modified "2023-09-23" @default.
- W333641246 title "Finite Element Modelling of Microstructure on GTAW Metal Deposition of Ti-6Al-4V alloy" @default.
- W333641246 hasPublicationYear "2006" @default.
- W333641246 type Work @default.
- W333641246 sameAs 333641246 @default.
- W333641246 citedByCount "1" @default.
- W333641246 crossrefType "journal-article" @default.
- W333641246 hasAuthorship W333641246A5028628257 @default.
- W333641246 hasAuthorship W333641246A5039607042 @default.
- W333641246 hasConcept C121332964 @default.
- W333641246 hasConcept C151730666 @default.
- W333641246 hasConcept C159985019 @default.
- W333641246 hasConcept C18747287 @default.
- W333641246 hasConcept C191897082 @default.
- W333641246 hasConcept C192562407 @default.
- W333641246 hasConcept C2780026712 @default.
- W333641246 hasConcept C2780430920 @default.
- W333641246 hasConcept C2816523 @default.
- W333641246 hasConcept C64297162 @default.
- W333641246 hasConcept C86803240 @default.
- W333641246 hasConcept C87976508 @default.
- W333641246 hasConcept C8953137 @default.
- W333641246 hasConcept C97355855 @default.
- W333641246 hasConceptScore W333641246C121332964 @default.
- W333641246 hasConceptScore W333641246C151730666 @default.
- W333641246 hasConceptScore W333641246C159985019 @default.
- W333641246 hasConceptScore W333641246C18747287 @default.
- W333641246 hasConceptScore W333641246C191897082 @default.
- W333641246 hasConceptScore W333641246C192562407 @default.
- W333641246 hasConceptScore W333641246C2780026712 @default.
- W333641246 hasConceptScore W333641246C2780430920 @default.
- W333641246 hasConceptScore W333641246C2816523 @default.
- W333641246 hasConceptScore W333641246C64297162 @default.
- W333641246 hasConceptScore W333641246C86803240 @default.
- W333641246 hasConceptScore W333641246C87976508 @default.
- W333641246 hasConceptScore W333641246C8953137 @default.
- W333641246 hasConceptScore W333641246C97355855 @default.
- W333641246 hasLocation W3336412461 @default.
- W333641246 hasOpenAccess W333641246 @default.
- W333641246 hasPrimaryLocation W3336412461 @default.
- W333641246 hasRelatedWork W1647633834 @default.
- W333641246 hasRelatedWork W1969917931 @default.
- W333641246 hasRelatedWork W1978072846 @default.
- W333641246 hasRelatedWork W1978986499 @default.
- W333641246 hasRelatedWork W1992518222 @default.
- W333641246 hasRelatedWork W2001711115 @default.
- W333641246 hasRelatedWork W2010291024 @default.
- W333641246 hasRelatedWork W2049184884 @default.
- W333641246 hasRelatedWork W2065441833 @default.
- W333641246 hasRelatedWork W2381790605 @default.
- W333641246 hasRelatedWork W255216234 @default.
- W333641246 hasRelatedWork W2608388557 @default.
- W333641246 hasRelatedWork W2748822894 @default.
- W333641246 hasRelatedWork W2766774310 @default.
- W333641246 hasRelatedWork W291067270 @default.
- W333641246 hasRelatedWork W2972273683 @default.
- W333641246 hasRelatedWork W2991188924 @default.
- W333641246 hasRelatedWork W3019134861 @default.
- W333641246 hasRelatedWork W3165530104 @default.
- W333641246 hasRelatedWork W610104367 @default.
- W333641246 isParatext "false" @default.
- W333641246 isRetracted "false" @default.
- W333641246 magId "333641246" @default.
- W333641246 workType "article" @default.