| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Investigating the Tribological Behavior of Nitinol Alloys Manufactured via Mechanical Alloying for Hip Implant Applications |
| Author(s) |
Nabila Bouchareb, Naouel Hezil, Mamoun Fellah, Bouras Dikra, Majeed Ali Habeeb, Imen Rim, Merah Neçar, Alejandro Perez Larios, A. El-Hiti Gamal, Obrosov Aleksei, Montagne Alex |
| On-Site Speaker (Planned) |
Mamoun Fellah |
| Abstract Scope |
The equiatomic titanium-nickel alloy, known as nitinol, is a highly sought-after titanium-based alloy used in biomedical applications, particularly in orthopedic implants. Its outstanding properties, such as low density, shape memory effect, high wear and corrosion resistance, good biocompatibility, and low Young's modulus compared to stainless steel or cobalt alloys, make it a truly impressive material. The present paper discusses the most significant findings on the tribological behavior of nitinol for biomedical applications. The crystallite size was estimated by X-ray diffraction (XRD), and the hardness was determined by nanoindentation. The study found that as the milling time increased, the size of the crystallite decreased while the hardness increased. The results of the tribological tests indicated that the enhanced mechanical properties, particularly the increased hardness and grain refinement of the alloys, contributed to the improved tribological performance of nitinol, specifically in terms of reduced wear rate and friction coefficient. Therefore, nitinol, with its superior wear resistance, is a material that can be effectively customized for use in orthopedic implant applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Titanium, Characterization |