Strengthening Mechanism and Microstructure of Deformable Ti Particles Reinforced AZ91 Composite
نویسندگان
چکیده
In this study, the deformable titanium (Ti) particles reinforced AZ91 composite was successfully prepared by powder metallurgy and subsequent extrusion. The mechanical properties microstructural evolution of pure 5Ti/AZ91 were studied. yield strength, ultimate tensile elongation are measured to be 212 MPa, 323 10.1%, respectively. Microstructure analysis revealed that Ti elongated along extrusion direction, forming a discontinuous strip particles, fine precipitated Mg17Al12 phase inhibits dynamic recrystallization (DRX) behavior through Zener pinning effect hinders growth matrix grains, resulting in refiner grains composite. Heterogeneous deformed magnesium (Mg) generate additional heterogeneous deformation-induced (HDI) strengthening. strengthening mainly contributed increment strength for
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ژورنال
عنوان ژورنال: Acta Metallurgica Sinica (english Letters)
سال: 2022
ISSN: ['2194-1289', '1006-7191']
DOI: https://doi.org/10.1007/s40195-022-01428-0