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dc.contributor.authorH. Azzeddine-
dc.contributor.authorS. Abdessameud-
dc.contributor.authorB. Alili-
dc.contributor.authorZ. Boumerzoug-
dc.contributor.authorD. Bradai-
dc.description.abstractA scanning electron microscopy (SEM)-based electron backscatter diffraction (EBSD) analysis showed that the discontinuous precipitation (DP) reaction rate was dependent on the geometry of the grain boundary in Mg-9Al-1Zn (wt.%) alloys. DP converted a supersaturated solid solution,δ 0 (magnesium (Mg)-rich solid solution), into a two-phaseδ + γ aggregate, withδ being a precipitated Mg17Al12 (intermetallic phase) behind a migrating reaction front. The near-special grain boundary was rather inactive, whereas most of the random high-angle boundaries promoted the reaction. Prior deformation (hot rolling to achieve up to 80% thickness reduction) had no effect on Link
dc.subjectAZ91 alloyen_US
dc.subjectthe frequency of special-grain boundaries precipitationen_US
dc.titleEffect of grain boundary misorientation on discontinuous precipitation in an AZ91 alloyen_US
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