Boron carbide reinforced aluminium matrix composite: Physical, mechanical characterization and mathematical modelling
By K. Shirvanimoghaddam, H. Khayyam, H. Abdizadeh, M. Akbari, A. Pakseresht, E. Ghasali, M. Naebe. 2016
158 citations recorded by the source corpus.
This paper investigates the manufacturing of aluminium-boron carbide composites using the stir casting method. Mechanical and physical properties tests to obtain hardness, ultimate tensile strength (UTS) and density are performed after solidification of specimens. The results show that hardness and tensile strength of aluminium based composite are higher than monolithic metal. Increasing the volume fraction of B4C, enhances the tensile strength and hardness of the composite; however over-loading of B4C caused particle agglomeration, rejection from molten metal and migration to slag. This phenomenon decreases the tensile strength and hardness of the aluminium based composite samples cast at 800 °C. For Al-15 vol% B4C samples, the ultimate tensile strength and Vickers hardness of the samples that were cast at 1000 °C, are the highest among all composites. To predict the mechanical properties of aluminium matrix composites, two key prediction modelling methods including Neural Network learned by Levenberg-Marquardt Algorithm (NN-LMA) and Thin Plate Spline (TPS) models are constructed based on experimental data. Although the results revealed that both mathematical models of mechanical properties of Al-B4C are reliable with a high level of accuracy, the TPS models predict the hardness and tensile strength values with less error compared to NN-LMA models.
Subfields: Aerospace Engineering, Ceramics and Composites, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/ef80c332b18b239eb909e4a8954fe72b58c73856
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In Aerospace Engineering
In Ceramics and Composites
In Mechanical Engineering
Citations in the corpus
- Processing issues, machining, and applications of aluminum metal matrix composites (2018, background): “that addition of B4C enhances the flexure strength, UTS and compressive strength of pure aluminum and aluminum alloy.([64,66,173,174]) Furthermore, Gode([175]) found that mechanical properties of Al–B4C composites improve due to addition of Sc or Zr.”