Microstructural evolution during extrusion of equal channel angular-pressed AA1070 alloy in micro/mesoscale
Abdel-Aziem, Walaa; Hamada, Atef; Makino, Takehiko; Hassan, M. (2020-07-01)
01.07.2020
Abdel-Aziem W, Hamada A, Makino T, Hassan M. Microstructural evolution during extrusion of equal channel angular-pressed AA1070 alloy in micro/mesoscale. Materials Science and Technology. 2020;36(11):1169-1177. doi:10.1080/02670836.2020.1759485
https://rightsstatements.org/vocab/InC/1.0/
Abdel-Aziem W, Hamada A, Makino T, Hassan M., Microstructural evolution during extrusion of equal channel angular-pressed AA1070 alloy in micro/mesoscale, Materials Science and Technology (Volume 36 Issue 11) pp. 1169-1177. Copyright © 2020 Institute of Materials, Minerals and Mining. DOI: 10.1080/02670836.2020.1759485.
https://rightsstatements.org/vocab/InC/1.0/
Abdel-Aziem W, Hamada A, Makino T, Hassan M., Microstructural evolution during extrusion of equal channel angular-pressed AA1070 alloy in micro/mesoscale, Materials Science and Technology (Volume 36 Issue 11) pp. 1169-1177. Copyright © 2020 Institute of Materials, Minerals and Mining. DOI: 10.1080/02670836.2020.1759485.
https://rightsstatements.org/vocab/InC/1.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202504282939
https://urn.fi/URN:NBN:fi:oulu-202504282939
Tiivistelmä
Abstract
Commercially AA1070 aluminium was processed by micro/mesoscale equal channel angular pressing (ECAP) up to four passes, via route , to achieve fine grain structure and thereby enhancing the mechanical properties. Subsequently, the samples subjected to ECAP processing underwent an extrusion deformation in micro/mesoscale. The microstructural evolution of the deformed structures was followed using electron backscatter diffraction. The findings confirm that a remarkable refinement in the grain structure was observed as a result of the gradual transformation of the low angle grain boundaries into high angle grain boundaries through the grain subdivision mechanism. Consequently, a substantial improvement of the mechanical properties of the extruded material is promoted compared to the samples subjected to ECAP processing.
Commercially AA1070 aluminium was processed by micro/mesoscale equal channel angular pressing (ECAP) up to four passes, via route , to achieve fine grain structure and thereby enhancing the mechanical properties. Subsequently, the samples subjected to ECAP processing underwent an extrusion deformation in micro/mesoscale. The microstructural evolution of the deformed structures was followed using electron backscatter diffraction. The findings confirm that a remarkable refinement in the grain structure was observed as a result of the gradual transformation of the low angle grain boundaries into high angle grain boundaries through the grain subdivision mechanism. Consequently, a substantial improvement of the mechanical properties of the extruded material is promoted compared to the samples subjected to ECAP processing.
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