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<p>Aluminum alloy AA5083 is used in aerospace and marine applications due to its better properties like better corrosion resistance, weld quality, and formability. However, its other qualities like poor strength and low wear resistance limit the service. Therefore, the aim of this study is to enhance the wear resistance of AA5083 alloy through the incorporation of reinforcements. AA5083 aluminum alloy composites were produced in this investigation using the stir casting technique, with the addition of TiO<sub>2</sub> and ZrO<sub>2</sub> nanoparticles. Totally, three composites were made, namely AA5083/TiO<sub>2</sub>, AA5083/ZrO<sub>2</sub>, and AA5083/(TiO<sub>2</sub>-ZrO<sub>2</sub>), and performance was assessed. The findings indicated that the AA5083/ZrO<sub>2</sub> composite exhibited superior hardness at 93 HV and achieved a greatest strength of 318&#xa0;MPa during tensile assessment. Further, a least wear rate of 0.00398 mm<sup>3</sup>/m, lower mass loss of 0.0303&#xa0;g, and the lowest COF value of 0.41 were noted for AA5083/ZrO<sub>2</sub> composite. This was attributed to the inclusion of ZrO<sub>2</sub> nanoparticles with high hardness than TiO<sub>2</sub> particles. This effort is unique in metal matrix compound area as metal oxide nanoparticles have been used as reinforcements. Previous research reports on AA5083 alloy revealed that the majority of investigators concentrated on carbide particles. This work exhibited that the wear rate of AA5083 aluminum alloy was decreased by approximately 30% after including ZrO<sub>2</sub> nanoparticles.</p>

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Experimental Investigation on Mechanical and Wear Characteristics of AA5083/TiO2/ZrO2 Hybrid Aluminum Nanocomposite for Aero and Marine Applications

  • 期刊论文

  • 发表日期：

    2026年1月26日

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  • K. Boopathy,
  • D. Velmurugan,
  • E. Narayanan Nampoothiri,
  • J. Bensam Raj

摘要

Aluminum alloy AA5083 is used in aerospace and marine applications due to its better properties like better corrosion resistance, weld quality, and formability. However, its other qualities like poor strength and low wear resistance limit the service. Therefore, the aim of this study is to enhance the wear resistance of AA5083 alloy through the incorporation of reinforcements. AA5083 aluminum alloy composites were produced in this investigation using the stir casting technique, with the addition of TiO2 and ZrO2 nanoparticles. Totally, three composites were made, namely AA5083/TiO2, AA5083/ZrO2, and AA5083/(TiO2-ZrO2), and performance was assessed. The findings indicated that the AA5083/ZrO2 composite exhibited superior hardness at 93 HV and achieved a greatest strength of 318 MPa during tensile assessment. Further, a least wear rate of 0.00398 mm3/m, lower mass loss of 0.0303 g, and the lowest COF value of 0.41 were noted for AA5083/ZrO2 composite. This was attributed to the inclusion of ZrO2 nanoparticles with high hardness than TiO2 particles. This effort is unique in metal matrix compound area as metal oxide nanoparticles have been used as reinforcements. Previous research reports on AA5083 alloy revealed that the majority of investigators concentrated on carbide particles. This work exhibited that the wear rate of AA5083 aluminum alloy was decreased by approximately 30% after including ZrO2 nanoparticles.