Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 684, Issue -, Pages 510-516Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2016.12.078
Keywords
Metal matrix composites; Friction; Shearing; Aluminum; Finite element modelling; Triaidality
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Unconstrained high pressure torsion (HP'S) tests were performed on two cold-sprayed Al-Al2O3 composites, one with spherical Al2O3 particles and the other with angular. Derivation of stress-strain curves during HPT revealed higher von Mises stress in the spherical sample compared to the angular ones, which is the opposite behavior of that observed in tension. Microstructural analysis revealed extensive crack formation in the angular sample, and fmite element modelling revealed a greater likelihood of crack formation in the vicinity of angular particles.
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