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Processing and Mechanical Properties of Ti2AlC MAX Phase Reinforced AE44 Magnesium Composite

Abstract : AE44 alloys and nanolaminated Ti 2 AlC particle-reinforced AE44 magnesium composites were synthesized by stir casting techniques and textured by hot extrusion methods. It was found that lamellar Al 11 RE 3 precipitates spheroidized with the introduction of Ti 2 AlC into the AE44 matrix. Both transmission electron microscope and planar disregistries calculations reveal a good match for interfacial lattice transition between Mg (0001) and the basal plane (0001) of Ti 2 AlC. This suggests that Ti 2 AlC is an efficient potent nucleating substrate for Mg, thus fertilizing the formation of strong interfacial bonds. After hot extrusion treatment, Ti 2 AlC particles were reoriented in the textured magnesium matrix, as confirmed by X-ray diffraction. This texture effect on the composite's mechanical properties was carefully studied by tensile and compressive tests.
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Xufeng Pi, Wenbo Yu, Chaosheng Ma, Xiaojun Wang, Shoumei Xiong, et al.. Processing and Mechanical Properties of Ti2AlC MAX Phase Reinforced AE44 Magnesium Composite. Materials, MDPI, 2020, ⟨10.3390/ma13040995⟩. ⟨hal-02495138⟩

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