Effect of Lattice Structure on Mechanical Properties of Ti-6Al-4V-Ta Alloy for Improved Antibacterial Properties

Zhumabekova A. Toleubekova M. Pham T.T. Talamona D. Perveen A.
August 2024 Multidisciplinary Digital Publishing Institute (MDPI)

Journal of Manufacturing and Materials Processing
2024 #8 Issue 4

This study investigates the effect of a tantalum addition and lattice structure design on the mechanical and antibacterial properties of Ti-6Al-4V alloys. TPMS lattice structures, such as Diamond, Gyroid, and Primitive, were generated by MSLattice 1.0 software and manufactured using laser powder bed fusion (LPBF). The results indicate that Gyroid and Primitive structures at a 40% density exhibit superior ultimate compressive strength, which closely emulates bone’s biomechanical properties. To be precise, adding 8% tantalum (Ta) significantly increases the material’s elastic modulus and energy absorption, enhancing the material’s suitability for dynamic load-bearing implants. Nevertheless, the Ta treatment reduces bacterial biofilm formation, especially on Gyroid surfaces, suggesting its potential for infection management. Overall, all findings provide critical insights into the development of advanced implant materials, contributing to the fields of additive manufacturing, materials science, and biomedical engineering and paving the way for improved patient outcomes in orthopedic applications.

additive manufacturing , antibacterial responses , selective laser melting , Ti6Al4V , Ti6Al4V-Ta , triply periodic minimal surface

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Department of Mechanical and Aerospace Engineering, School of Engineering & Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
Department of Biology, School of Sciences and Humanities, Nazarbayev University, Astana, 010000, Kazakhstan

Department of Mechanical and Aerospace Engineering
Department of Biology

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