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Open AccessArticle

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

1
Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
2
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
3
School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Université de Lorraine–CNRS–Arts et Métiers ParisTech–LEM3, 7 rue Félix Savart, Metz 57070, France
5
Labex Damas–Université de Lorraine, Metz 57073, France
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(4), 995; https://doi.org/10.3390/ma13040995
Received: 14 January 2020 / Revised: 18 February 2020 / Accepted: 20 February 2020 / Published: 23 February 2020
AE44 alloys and nanolaminated Ti2AlC particle-reinforced AE44 magnesium composites were synthesized by stir casting techniques and textured by hot extrusion methods. It was found that lamellar Al11RE3 precipitates spheroidized with the introduction of Ti2AlC 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 Ti2AlC. This suggests that Ti2AlC is an efficient potent nucleating substrate for Mg, thus fertilizing the formation of strong interfacial bonds. After hot extrusion treatment, Ti2AlC 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. View Full-Text
Keywords: AE44 alloy; Ti2AlC MAX phases; anisotropic AE44 alloy; Ti2AlC MAX phases; anisotropic
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MDPI and ACS Style

Pi, X.; Yu, W.; Ma, C.; Wang, X.; Xiong, S.; Guitton, A. Processing and Mechanical Properties of Ti2AlC MAX Phase Reinforced AE44 Magnesium Composite. Materials 2020, 13, 995.

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