Contribution of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites

By Z. Zhang, D. Chen. 2008

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Metal Matrix Composites Reinforced by Nano-Particles—A Review (2014, methodology): “A modified Shear Lag model proposed by Nardone and Prewo [11] is commonly used to predict the contribution in strengthening due to load transfer in particulate-reinforced composites [1–3]: ∆σ = σ ( + )A 4l (1) where is the volume fraction of the particles, σ is the yield strength of the unreinforced”
Fabrication of nano-sized Al2O3 reinforced casting aluminum composite focusing on preparation process of reinforcement powders and evaluation of its properties (2013, background): “Significant combination of increment in UTS and ductility of monolithic aluminum in pure Al2O3 and Al2O3–Al reinforced samples can be related to the strengthening effects of uniformly distributed nanoparticles, grain refinement of aluminum matrix, the thermal stress at the matrix/ reinforcement inte”
Mechanical performance of particulate-reinforced Al metal-matrix composites (MMCs) and Al metal-matrix nano-composites (MMNCs) (2017, background): “[39, 50]) would not effectively devote to Dry from anticipated Orowan strengthening mechanism.”