Significance of Al2O3 particle morphology in the microstructure evolution of cold-sprayed Al-Al2O3 during unconstrained high-pressure torsion
作者： J. Michael Shockley , C. Desrayaud , R.R. Chromik , S. Descartes
DOI: 10.1016/J.MSEA.2016.12.078
关键词: Composite material 、 Microstructure 、 von Mises yield criterion 、 Metallurgy 、 Finite element method 、 Aluminium 、 Torsion (mechanics) 、 High pressure 、 Materials science
摘要: Abstract Unconstrained high pressure torsion (HPT) tests were performed on two cold-sprayed Al-Al₂O₃ composites, one with spherical Al₂O₃ particles and the other angular. Derivation of stress-strain curves during HPT revealed higher von Mises stress in sample compared to angular ones, which is opposite behavior that observed tension. Microstructural analysis extensive crack formation sample, finite element modelling a greater likelihood vicinity particles.
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