Comparison between current models for the strength of particulate-reinforced metal matrix nanocomposites with emphasis on consideration of Hall–Petch effect

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Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review (2020, methodology): “The results may vary as per the processing circumstances and experimental variations.(84) The stated section describes the different ranges of reinforcement from micro to nano level, particles to nano-sheets and nano-encapsulated type reinforcement in the Al-MMCs.”
Surface composites by friction stir processing: A review (2015, positive): “Sanaty-Zadeh and Rohatgi 2012) experimentally validated the model for magnesium nanoomposites reinforced with Al2O3 and Y2O3 particles.”
An overview of additively manufactured metal matrix composites: preparation, performance, and challenge (2024, methodology): “Such a strengthening mechanism is generally applied to the composites reinforced by particles, which is expressed by the following equation [369, 370]: where ∆ σ Or is the strength increment owing to the Orowan strengthening, M is the average orientation factor, r is the average particle diameter,…”
Metal Matrix Composites Reinforced by Nano-Particles—A Review (2014, methodology): “For the case of equiaxed particles Equation (1) reduces to [3]: ∆σ = 12 σ (2)”