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- W4385730300 abstract "The Mg-6Zn alloy with different contents of Ce was prepared by the gravity casting method, and then the Mg-6Zn-xCe (x=0, 0.5, 1.0, 1.5, wt.%) alloys were extruded at 300 °C and 350 °C after solution treatment. The phase constitution and microstructure evolution of Mg-Zn-xCe alloys were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and electron backscattering diffraction (EBSD). Meanwhile, the mechanical properties of the alloy were tested at room temperature. For as-cast alloys, the results show that the main compound in Mg-6Zn alloy is Mg4Zn7 phase, and the main compound is T-(MgZn)12Ce phase after the addition of different amounts of Ce. The microstructure and distribution of second phases are greatly improved after extrusion at 300 °C and 350 °C. Compared with initial mechanical properties, the strength and elongation increase obviously by means of extrusion at different temperatures. In addition, the microstructure after extrusion at 350 °C is further analyzed according to EBSD data. The results show that rare earth element Ce probably promotes the activation of non-basal slip during the deformation process with the increase of Ce, which reduces the strength of basal texture and thus improves the plasticity of the alloy. Meanwhile, the increase of grain boundary migration ability leads to the gradual increase of recrystallization grain size and decreases the strength." @default.
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- W4385730300 date "2023-07-01" @default.
- W4385730300 modified "2023-10-07" @default.
- W4385730300 title "Effect of Ce on microstructure and mechanical properties of Mg-Zn-Ce magnesium alloys" @default.
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- W4385730300 doi "https://doi.org/10.1007/s41230-023-2183-6" @default.
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