About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
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Presentation Title |
The Tribological Performance of Nitinol for Hip Implants Applications Manufactured via Mechanical Alloying |
Author(s) |
Nabila Bouchareb, Mamoun Fellah, Naouel Hezil, Imen Rim |
On-Site Speaker (Planned) |
Nabila Bouchareb |
Abstract Scope |
The binary titanium-nickel (Ti-Ni) alloy is one of the most desirable Ti-based alloys utilized in orthopedic implants. The focus of this study is to evaluate the effect of milling times on the tribological properties of the nanostructured Ti-Ni alloy produced via mechanical alloying by using a planetary high-energy ball mill at different milling times. The structural characterization was performed by using scanning electron microscopy (SEM) and X-ray diffraction (XRD), as well as the tribological tests were conducted using a ball-on-disk tribometer with different applied load. The SEM results revealed that, the morphology of the powders changed from the initial ones to more homogenous, finer, and uniform ones as the grinding times increased. According to XRD analysis; with increasing the milling times; the crystallite size decreased while the microstrain increased. The coefficient of friction and wear rate decreasing with increasing milling. This enhancement in tribological properties is attributed to grain refinement. |
Proceedings Inclusion? |
Planned: |
Keywords |
Biomaterials, Titanium, Characterization |