Annealing-induced strengthening and stabilization in ultrafine-grained Al and Al–Mg alloys prepared by rapid powder consolidation

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dc.contributor.authorZhou, DSen_AU
dc.contributor.authorBu, YFen_AU
dc.contributor.authorMuránsky, Oen_AU
dc.contributor.authorGeng, HWen_AU
dc.contributor.authorSun, BHen_AU
dc.contributor.authorYang, Cen_AU
dc.contributor.authorZhang, DLen_AU
dc.date.accessioned2023-01-19T04:06:21Zen_AU
dc.date.available2023-01-19T04:06:21Zen_AU
dc.date.issued2022-01-26en_AU
dc.date.statistics2022-12-20en_AU
dc.description.abstractAnnealing usually softens Al–Mg based alloys due to grain coarsening. This work shows that annealing induces strengthening in bulk ultrafine-grained Al and Al-(2.5, 5 and 7.5) at.% Mg samples fabricated by mechanical alloying and rapid powder extrusion. Experimental investigation of the microstructure of the annealed samples reveals that the annealing promotes in-situ formation of nanoscale dispersoids which strongly suppresses grain growth and recrystallization. The in-situ formed nanodispersoids warrant high thermal stability of the ultrafine-grained matrix microstructure and improve the strength of the as-extruded samples while maintaining their good ductility. The present findings offer an exciting pathway in developing thermally stable ultrafine-grained Al–Mg based alloys with a notable combination of high strength and good ductility. © 2021 Elsevier B.Ven_AU
dc.description.sponsorshipDengshan Zhou is grateful to the financial support from the Natural Science Foundation of China (Grant No. 51701036), and Deliang Zhang acknowledges the financial support from the “Xing Liao Talent Plan” of Liaoning Province, China (Project No. XLYC1802080).en_AU
dc.identifier.articlenumber142539en_AU
dc.identifier.citationZhou, D., Bu, Y., Muránsky, O., Geng, H., Sun, B., Yang, C., & Zhang, D. (2022). Annealing-induced strengthening and stabilization in ultrafine-grained Al and Al–Mg alloys prepared by rapid powder consolidation. Materials Science and Engineering: A, 833, 142539. doi:10.1016/j.msea.2021.142539en_AU
dc.identifier.issn0921-5093en_AU
dc.identifier.journaltitleMaterials Science and Engineering: Aen_AU
dc.identifier.urihttps://doi.org/10.1016/j.msea.2021.142539en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14403en_AU
dc.identifier.volume833en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMagnesiumen_AU
dc.subjectAnnealingen_AU
dc.subjectAluminiumen_AU
dc.subjectAlloysen_AU
dc.subjectStabilityen_AU
dc.subjectHardeningen_AU
dc.subjectPowder metallurgyen_AU
dc.titleAnnealing-induced strengthening and stabilization in ultrafine-grained Al and Al–Mg alloys prepared by rapid powder consolidationen_AU
dc.typeJournal Articleen_AU
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