@misc{BoukhalfaHezilOuanesetal., author = {Boukhalfa, Chaima and Hezil, Naouel and Ouanes, Miyada and Fellah, Mamoun and Baccouche, Mostefa and Obrosov, Aleksei and Dahmani, Marwa}, title = {Structure-property correlation in a Nanostructured Ti-6Al-4V alloy designed for biomedical applications}, series = {First National Conference on Materials Sciences and Engineering MSE-22}, journal = {First National Conference on Materials Sciences and Engineering MSE-22}, editor = {Fellah, Mamoun and Hezil, Naouel}, publisher = {Abbes Laghour University}, address = {Khenchela, Algeria}, isbn = {978-9931-9603-2-4}, pages = {703 -- 703}, abstract = {The use of powder metallurgy techniques for manufacturing near net shape components for the biomedical field is on a continuous development. Evaluating the effect of different process parameters such as milling time on the properties of these newly developed alloys leads to enhancing their properties, Hence, in this paper, the influence of structural parameters on the mechanical proprieties of a nanostructured Ti-6Al-4V alloy was investigated, considering the milling duration variation.}, language = {en} } @misc{BoukhalfaHezilOuanesetal., author = {Boukhalfa, Chaima and Hezil, Naouel and Ouanes, Miyada and Fellah, Mamoun and Baccouche, Mostefa and Obrosov, Aleksei and Dahmani, Marwa}, title = {The effect of surface properties on the wear resistance of Ti-6Al-4V biomedical alloy manufactured via mechanical alloying}, series = {First National Conference on Materials Sciences and Engineering MSE-22}, journal = {First National Conference on Materials Sciences and Engineering MSE-22}, editor = {Fellah, Mamoun and Hezil, Naouel}, publisher = {Abbes Laghour University}, address = {Khenchela, Algeria}, isbn = {978-9931-9603-2-4}, pages = {543 -- 543}, abstract = {The Ti-6Al-4V alloy is one of the common used titanium alloys in prosthetic applications, due to its significant proprieties, however, its wear performance is questionable, hence, the present study aims to evaluate the wear resistance of a Nanostructured Ti-6Al-4V alloy manufactured via high energy ball milling, with varying milling duration in order to investigate the correlation between surface proprieties and the wear performance of the alloy so as understanding its wear mechanisms.}, language = {en} } @misc{DahmaniFellahHeziletal., author = {Dahmani, Marwa and Fellah, Mamoun and Hezil, Naouel and Benoudia, Mohamed-Cherif and Samad, Mohammed Abdul and Alburaikan, Alhanouf and Khalifa, Hamiden Abd El-Wahed and Obrosov, Aleksei}, title = {Structural and mechanical evaluation of a new Ti-Nb-Mo alloy produced by high-energy ball milling with variable milling time for biomedical applications}, series = {The International Journal of Advanced Manufacturing Technology}, volume = {129}, journal = {The International Journal of Advanced Manufacturing Technology}, number = {11-12}, issn = {1433-3015}, doi = {10.1007/s00170-023-12650-0}, pages = {4971 -- 4991}, abstract = {The main focus of this work is to investigate the impact of varying milling times (2 to 18 h) on the structural and mechanical properties of the developed Ti-Nb-Mo alloy. The morphology, phase composition, microstructure, and mechanical behavior of milled and sintered Ti-25Nb-25Mo alloy samples were characterized systematically using x-ray diffraction, scanning electron microscope, optical microscope, and Vicker microhardness. It was noted that the quantity of the β-Ti phase increased as the milling time increased. After 12 h of milling, the synthesized alloys exhibited a spherical morphology and texture with homogeneous distribution. The milled alloys' structural evolution and morphological changes were found to be dependent on their milling duration. Morphological analysis revealed that the crystallite size and mean pore size decreased when the milling duration increased, reaching minimum values of 51 nm and < 1 μm, after 12 and 18 h respectively. As the milling time increased, the grain size decreased, resulting in an increase in density, microhardness, and elastic modulus. Ti-25Nb-25Mo will presents good anti-wear ability and higher resistance to plastic deformation due to enhanced mechanical characteristics (H/E, and H3/E2). Hence, the developed Ti-25Nb-25Mo alloys with reduced elastic modulus and desirable mechanical properties were found to be a promising option for biomedical applications.}, language = {en} } @misc{DahmaniFellahHeziletal., author = {Dahmani, Marwa and Fellah, Mamoun and Hezil, Naouel and Benoudia, Mohamed-Cherif and Obrosov, Aleksei and El-Hiti, Gamal A. and Weiß, Sabine}, title = {Bioactivity and tribological performance of a novel nano-biomaterial beta-type Ti-alloy}, series = {Journal of materials research and technology}, volume = {36}, journal = {Journal of materials research and technology}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2214-0697}, doi = {https://doi.org/10.1016/j.jmrt.2025.03.180}, pages = {2297 -- 2316}, abstract = {This study investigates the bioactivity; wear performance, and topography of a novel beta-type titanium-based alloy using techniques such as scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and 2D and 3D analysis. The tribological test was evaluated using a ball-on-disk tribometer in a wet environment. Different loads of 2, 6, and 10 N were applied during the evolution. The data results indicate a significant effect of the milling process on the formation of the hydroxyapatite layer on the surfaces of the Ti-Nb-Mo alloy. Both the wear volume and rate showed a consistent trend of decrease as the milling time increased from 2 to 12 h for all applied loads. The minimum values of wear and volume were reached after 12 h of milling. The improvement in tribological behavior can be attributed to the improved mechanical properties of the alloys. In addition, the significant presence of niobium (Nb) and molybdenum (Mo) plays a critical role in achieving high coefficient of friction values. The primary wear mechanism observed in the Ti-25Nb-25Mo system was adhesive wear in addition to abrasive wear. With its lower Young's modulus and favorable biological and tribological properties, the Ti-25Nb-25Mo alloy represents a promising option for bone tissue applications in orthopedics.}, language = {en} }