Investigating Microstructure, Mechanical Properties, and Wear Behaviour of Al–Li/ZrB2 Composites Fabricated Via Stir–Squeeze Casting.
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| Title: | Investigating Microstructure, Mechanical Properties, and Wear Behaviour of Al–Li/ZrB |
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| Authors: | Kulsum, Farheen1 (AUTHOR) farheen.kul@gmail.com, Vemula, Jeevan1 (AUTHOR) |
| Source: | Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ). Feb2026, Vol. 51 Issue 3, p2681-2705. 25p. |
| Subject Terms: | *Aluminum-lithium alloys, *Zirconium boride, *Wear resistance, *Aerospace materials, *Automotive materials, *Squeeze casting, *Microstructure, *Mechanical behavior of materials |
| Abstract: | The growing need for lightweight, high-performance materials in the aerospace and automotive industries has brought aluminium–lithium (Al–Li) composites into focus due to their low density and exceptional mechanical properties. However, challenges persist in achieving a uniform dispersion of particles within the Al–Li matrix and enhancing its wear resistance remain significant challenges. This study explores the development of Al–Li 2099 composites reinforced with 3%, 6%, and 9% ZrB2 particles using the stir–squeeze casting method. A detailed examination of the composites' microstructure, mechanical properties, and wear performance was conducted. Among the tested composites, the composite containing 9% ZrB2 showed the greatest improvements in mechanical properties, achieving a hardness of 103.2 HV, an impact energy of 9.5 J, a tensile strength of 221.5 MPa, and a compressive strength of 510 MPa. The wear rate and coefficient of friction were further analysed using response surface methodology. ANOVA results demonstrated the statistical reliability of the model, with R2 values of 0.9917 for wear rate and 0.9926 for COF. Additionally, predictions made using artificial neural networks showed a strong correlation, with an R value of 0.9977. Based on these findings, this study highlights the potential of Al–Li 2099 composites to address industry demands for materials that are both lightweight and durable. These advanced composites represent a promising solution to enhance efficiency and performance in the aerospace and automotive sectors. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Abstract: | The growing need for lightweight, high-performance materials in the aerospace and automotive industries has brought aluminium–lithium (Al–Li) composites into focus due to their low density and exceptional mechanical properties. However, challenges persist in achieving a uniform dispersion of particles within the Al–Li matrix and enhancing its wear resistance remain significant challenges. This study explores the development of Al–Li 2099 composites reinforced with 3%, 6%, and 9% ZrB2 particles using the stir–squeeze casting method. A detailed examination of the composites' microstructure, mechanical properties, and wear performance was conducted. Among the tested composites, the composite containing 9% ZrB2 showed the greatest improvements in mechanical properties, achieving a hardness of 103.2 HV, an impact energy of 9.5 J, a tensile strength of 221.5 MPa, and a compressive strength of 510 MPa. The wear rate and coefficient of friction were further analysed using response surface methodology. ANOVA results demonstrated the statistical reliability of the model, with R2 values of 0.9917 for wear rate and 0.9926 for COF. Additionally, predictions made using artificial neural networks showed a strong correlation, with an R value of 0.9977. Based on these findings, this study highlights the potential of Al–Li 2099 composites to address industry demands for materials that are both lightweight and durable. These advanced composites represent a promising solution to enhance efficiency and performance in the aerospace and automotive sectors. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 2193567X |
| DOI: | 10.1007/s13369-025-10060-w |
