Fracture Behavior of Particle Reinforced Metal Matrix Composites

Wei Dong Song; Hai Yan Liu; Jian Guo Ning

doi:10.4028/www.scientific.net/AMR.79-82.1487

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Synthesis and Electrochemical Behavior of Two Microporous Polyoxomolybdates
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Solid Reaction and Microstructure of Interface of 3D Meshy SiC_n/Cu Composite
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Fracture Behavior of Particle Reinforced Metal Matrix Composites
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Moderation of Entrance Pressure Drop and Extrudate Swelling of Wood Fiber/Polypropylene Composites Melt in Rotating-Die Extrusion Process
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Diethylenetriamine-Assisted Hydrothermal Route to Synthesize Cuboidal Structure of PbSe Crystal
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Microstructure and Mechanical Property of 2.5D C/SiCN Composite
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Influences of Fe₂O₃ Doping on the Crystallization of SiO₂-Al₂O₃-MgO-K₂O-ZrO₂-F Glass-Ceramics
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Fracture Behavior of Particle Reinforced Metal Matrix Composites

Abstract:

SEM experimental system was employed to investigate the fracture behavior of particle reinforced metal matrix composites (91%wt tungsten alloys) by in-situ experiments. The fracture patterns of tungsten alloys under tensile loading were examined. Multi-particle unit cell models containing some important microstructure characteristics of tungsten alloys were established. By using fixed point iteration method, the displacement constraint conditions were applied on the multi-particle unit cell and the mechanical properties of tungsten alloys under tensile loadings were simulated. Comparison of the experimental results and the numerical predictions shows a good agreement between them, verifying the rationality of the FE models using the fixed point iteration method.