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dc.contributor.author
Cruz Gandarilla, Francisco
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dc.contributor.author
Bolmaro, Raul Eduardo
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dc.contributor.author
Mendoza León, H. F.
dc.contributor.author
Salcedo Garrido, A. M.
dc.contributor.author
Cabañas Moreno, J.G.
dc.date.available
2022-07-28T16:04:58Z
dc.date.issued
2019-11
dc.identifier.citation
Cruz Gandarilla, Francisco; Bolmaro, Raul Eduardo; Mendoza León, H. F.; Salcedo Garrido, A. M.; Cabañas Moreno, J.G.; Study of recovery and first recrystallisation kinetics in CGO Fe3%Si steels using misorientation-derived parameters (EBSD); Wiley Blackwell Publishing, Inc; Journal Of Microscopy-oxford; 275; 3; 11-2019; 133-148
dc.identifier.issn
0022-2720
dc.identifier.uri
http://hdl.handle.net/11336/163426
dc.description.abstract
Many metallurgical processes produce characteristic dislocation accumulation, with heterogeneous spatial and orientation distributions and further development of microstructures after heat treatment. Recovery and recrystallisation behaviours are direct consequences of those uneven dislocation distributions. The Electron BackScatter Diffraction (EBSD) technique can be used for the characterisation of such microstructural features, including: Density of Geometrically Necessary Dislocations (GND), Kernel Average Misorientations (KAM), Grain Orientation Spread (GOS), Grain Average Misorientation (GAM), Grain Reference Orientation Deviation (GROD – Angle) and GOS/D, where D is an assumed characteristic grain length. Production of Fe3%Si alloys with a Goss texture, essential step in the manufacture of electrical transformers, requires several different processing stages, including the one called primary recrystallisation, a key process preceding abnormal grain growth. The structure of grains and different microstructural aspects of the recrystallisation stage will provide the conditions for development of the Goss orientation during abnormal grain growth. In the present work we use GOS, GAM, GROD, GOS/D, GND and KAM, calculated from EBSD scans performed on cold rolled Fe3%Si alloys subject to increasing heat treatment times, to characterise the kinetics of recovery and primary recrystallisation in an Fe3%Si alloy. Difficulties in the interpretation of these results may arise from the interactive competition between various microstructural features. Hardness measurements were also performed in order to validate recovery and recrystallisation evolution by classical methods. It was found that the global GOS (i.e. including grains of all orientations) shows changes which can be related to those observed in the hardness for high annealing temperatures but it is not sensitive to microstructure evolution occurring at low temperatures. Meanwhile, GND undergoes changes at all annealing temperatures and, remarkably, it responds to the recovery that GOS cannot detect at low temperatures. The GAM parameter seems to follow better the microhardness results. When grains belonging to different texture components are analysed, gamma fibre grains are the first to recrystallise and alpha fibre grains the last. Lay Description: Many metallurgical processes produce characteristic dislocation accumulation, with heterogeneous spatial and orientation distributions. Further development of such microstructures occurs with subsequent heat treatments. Recovery and recrystallisation behaviours are directly affected by consequences of those uneven dislocation distributions. The Electron Back Scatter Diffraction (EBSD) technique can be used for the characterisation of such microstructural features using different magnitudes that describe locally or globally misorientations between various locations in the material. In search of the best parameters [among them: Density of Geometrically Necessary Dislocations (GND), Kernel Average Misorientations (KAM), Grain Orientation Spread (GOS), Grain Average Misorientation (GAM), Grain Reference Orientation Deviation (GROD – Angle) and GOS/D, where D is an assumed characteristic grain length], we characterised the kinetics of the recovery during the 1st recrystallisation in an Fe3%Si alloy. It was found that the global GOS (i.e. including grains of all orientations) shows changes that can be related to the advance of recrystallisation on the other hand, the GND (KAM, GAM etc.) parameter seems to better follow the progress of recovery phenomenon. When grains belonging to different texture components are analysed, gamma fibre grains are the first to recrystallise and alpha fibre grains the last.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
EBSD MISORIENTATIONS
dc.subject
PRIMARY RECRYSTALLISATION
dc.subject
RECOVERY
dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Study of recovery and first recrystallisation kinetics in CGO Fe3%Si steels using misorientation-derived parameters (EBSD)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-05-06T14:37:17Z
dc.journal.volume
275
dc.journal.number
3
dc.journal.pagination
133-148
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Cruz Gandarilla, Francisco. INSTITUTO POLITÉCNICO NACIONAL (IPN);
dc.description.fil
Fil: Bolmaro, Raul Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
dc.description.fil
Fil: Mendoza León, H. F.. INSTITUTO POLITÉCNICO NACIONAL (IPN);
dc.description.fil
Fil: Salcedo Garrido, A. M.. INSTITUTO POLITÉCNICO NACIONAL (IPN);
dc.description.fil
Fil: Cabañas Moreno, J.G.. CENTRO DE INVESTIGACIÓN Y DE ESTUDIOS AVANZADOS ; INSTITUTO POLITÉCNICO NACIONAL;
dc.journal.title
Journal Of Microscopy-oxford
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/jmi.12822
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/jmi.12822
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