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<p>Magnesium alloy can potentially reduce the weight of components, which plays a crucial role in automotive component applications. The stir cast technique has gained importance for making complex shapes and has a drawback of poor wettability and uneven filler distribution, resulting in reduced mechanical properties of the composite. For enriching the wettability behaviour and attaining the homogenous particle distribution, the magnesium fluoride (MgF<sub>2</sub>) and ultrasonic stirrer action are adopted during the making of AZ91E alloy composite samples, which contains constant weight percentage (2&#xa0;wt%) of boron nitride (BN) and different wt% of titanium dioxide (TiO<sub>2</sub>) nanoparticles via stir cast technique associated with ultrasonic treatment. The impact of MgF<sub>2</sub> and ultrasonic stirrer action on the microstructural behaviour of AZ91E alloy composites is analysed through transmission electron microscopy (TEM), which provides the increased particle dispersion&#xa0;as&#xa0;homogenous. The actual density of the composite was improved by the additions of reinforcements, which obeyed the rule of the mixture and were found to be less than 1% of their porosity. The presence of homogenous TiO<sub>2</sub> and BN favours better enhancement in mechanical property, and the AZ91E hybrid nanocomposite synthesized with 2&#xa0;wt% BN and 3&#xa0;wt% TiO<sub>2</sub> has maximum hardness (97&#xa0;HV), improved Charpy impact property (18.3&#xa0;J/mm<sup>2</sup>), optimum yield (135&#xa0;MPa) and tensile (205&#xa0;MPa) behaviour compared to AZ91E&#xa0;alloy&#xa0;cast. This AZ91E/2 wt% BN/3 wt% TiO<sub>2</sub> hybrid nanocomposite will apply for bicycle frame&#xa0;utilization.</p>

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Hybrid Stir Cast Featured with Wettability Agent and Ultrasonic Action of Magnesium Alloy Composite Composed with Nanofiller: Study Characteristics

  • 期刊论文

  • 发表日期：

    2025年5月3日

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  • R. Venkatesh,
  • Aman Sharma,
  • Nagabhooshanam Nagarajan,
  • Mohanavel Vinayagam,
  • K. Karthik,
  • Apurv Verma,
  • Manzoore Elahi M. Soudagar,
  • Sami Al Obaid,
  • Sulaiman Ali Alharbi

摘要

Magnesium alloy can potentially reduce the weight of components, which plays a crucial role in automotive component applications. The stir cast technique has gained importance for making complex shapes and has a drawback of poor wettability and uneven filler distribution, resulting in reduced mechanical properties of the composite. For enriching the wettability behaviour and attaining the homogenous particle distribution, the magnesium fluoride (MgF2) and ultrasonic stirrer action are adopted during the making of AZ91E alloy composite samples, which contains constant weight percentage (2 wt%) of boron nitride (BN) and different wt% of titanium dioxide (TiO2) nanoparticles via stir cast technique associated with ultrasonic treatment. The impact of MgF2 and ultrasonic stirrer action on the microstructural behaviour of AZ91E alloy composites is analysed through transmission electron microscopy (TEM), which provides the increased particle dispersion as homogenous. The actual density of the composite was improved by the additions of reinforcements, which obeyed the rule of the mixture and were found to be less than 1% of their porosity. The presence of homogenous TiO2 and BN favours better enhancement in mechanical property, and the AZ91E hybrid nanocomposite synthesized with 2 wt% BN and 3 wt% TiO2 has maximum hardness (97 HV), improved Charpy impact property (18.3 J/mm2), optimum yield (135 MPa) and tensile (205 MPa) behaviour compared to AZ91E alloy cast. This AZ91E/2 wt% BN/3 wt% TiO2 hybrid nanocomposite will apply for bicycle frame utilization.