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The dynamic mechanical response of SiC particulate reinforced 2024 aluminum matrix composites
Affiliation:1. School of Aerospace, Harbin Institute of Technology, PR China;2. School of Materials Science and Technology, Harbin Institute of Technology, PR China;1. Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada;2. Engineering Technology and Materials Science, Black Hawk College, Moline, IL, USA;1. Department of Mechanical Program, Hacettepe University, 06935 Ankara, Turkey;2. Technical Sciences Vocational School, Gazi University, 06500 Ankara, Turkey;3. Department of Metallurgy and Materials Eng., Gazi University, 06500 Ankara, Turkey;1. International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, PR China;2. Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, PR China;1. State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China;2. Institute of Materials Physics, Westfälische Wilhelms-Universität Münster, Münster 48149, Germany;3. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China;4. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China;1. Marine Additive Manufacturing Centre of Excellence (MAMCE), University of New Brunswick, Fredericton, NB, Canada;2. Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada;3. Additive Metal Manufacturing (AMM), 131 Citation Drive, Unit 17, Concord, ON, Canada
Abstract:The compression properties of the aluminum alloy 2024 metal matrix composites reinforced with 50 vol.% SiC particles were investigated using Instron testing machine and split Hopkinson pressure bar (SHPB) in this paper. The compression stress–strain curves were obtained at the strain rates ranging from 1 × 10 3 to 2.5 × 103/s. The fracture surfaces were characterized by scanning electron microscopy. The results showed that SiCp/2024 Al composites exhibited high strain-rate sensitivity. The strength of composites tended to increase–decrease with increasing of strain rates. The effect of the strain rate on elongation was also discussed.
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