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<p>Aluminium-based scrap material was reinforced with varying weight percentage (0 wt.%, 3 wt.%, 6 wt.%, 9 wt.%) of boron carbide by stir casting process, and the composites so formed were tested for their mechanical properties and wear resistance. Fractographic studies have been conducted to get an insight into the failure mechanism of the composites for tensile and Charpy impact tests. The air erosion wear test has been conducted on composite samples using quartz sand of size range 150 µm to 250 µm. The steady-state experiments indicate that the greatest specific erosion rate is at 90º, except for 0 wt.% composite where maximum erosion rate is at 45º. The specific erosion rate decreases with increase in the filler content of the composites up to 6 wt.% and increases beyond that. AFM of the eroded samples indicates a decrease in surface roughness at a velocity of 60 m/s as compared to that at 30 m/s. Thereafter, Taguchi (L-16) orthogonal array is utilized in order to optimize the input parameters. Results from Taguchi methodology find the order of dominance of control factors as: velocity &gt; filler content &gt; angle &gt; erodent feed rate. Composites display an overall semi-ductile wear behaviour.</p>

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Mechanical and Erosive Wear Analysis of Boron Carbide Reinforced Scrap Aluminium composites

  • 期刊论文

  • 发表日期：

    2025年4月26日

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  • Alok Vats,
  • Amar Patnaik,
  • M. L. Meena,
  • Shivam Mishra

摘要

Aluminium-based scrap material was reinforced with varying weight percentage (0 wt.%, 3 wt.%, 6 wt.%, 9 wt.%) of boron carbide by stir casting process, and the composites so formed were tested for their mechanical properties and wear resistance. Fractographic studies have been conducted to get an insight into the failure mechanism of the composites for tensile and Charpy impact tests. The air erosion wear test has been conducted on composite samples using quartz sand of size range 150 µm to 250 µm. The steady-state experiments indicate that the greatest specific erosion rate is at 90º, except for 0 wt.% composite where maximum erosion rate is at 45º. The specific erosion rate decreases with increase in the filler content of the composites up to 6 wt.% and increases beyond that. AFM of the eroded samples indicates a decrease in surface roughness at a velocity of 60 m/s as compared to that at 30 m/s. Thereafter, Taguchi (L-16) orthogonal array is utilized in order to optimize the input parameters. Results from Taguchi methodology find the order of dominance of control factors as: velocity > filler content > angle > erodent feed rate. Composites display an overall semi-ductile wear behaviour.