Purpose. The antimicrobial effect of a silver-coated tumor endoprosthesis has been proven in clinical and experimental trials. However, in the literature there are no reports concerning the effect of elementary silver on osteoblast behaviour. Therefore, the prosthetic stem was not silver-coated because of concerns regarding a possible inhibition of the osseointegration. The aim of the present s...

Abstract The fraction and size of pores present in EBM Ti-6Al-4V specimens varies depending on the melting strategy used, whether linear raster or point melting.

5 Abstract-Fretting fatigue is an important concern in the structures and machine parts that are subjected to repeated relative movements between them. In current study a review of the work done by various researchers related to the evaluation of fretting fatigue response of Ti-6Al-4V has been presented. Effects of surface treatments, crack growth, heat treatments, types of loading, contact pad...

During friction stir lap joint welding, hooks are systematically formed at the interface of dissimilar Al2024/Ti-6Al-4V plates. Various dimensions and shapes observed according to welding parameters (welding speed, rotational speed double-pass). Based on digital image correlation (DIC) during tensile shear tests, it is found that features govern fracture behaviours and, hence, mechanical proper...

OBJECTIVES The aim of the present study was to investigate the composition, morphology, bulk structure and ionic release of two brands of titanium orthodontic brackets: Orthos2 (Ormco, USA) and Rematitan (Dentaurum, Germany). METHODS Five specimens of each group were examined with computerized X-ray microtomography, to reveal the morphology and structure of brackets, whilst resin-embedded and...

Abstract This article presents a review on recent advances in the fatigue behavior of Ti alloys, especially main commercial compositions for orthopedic applications. In case well?known Ti–6Al–4V alloy, major concern is related to effect surface modification necessary improve osseointegration. The introduction discontinuities due growth porous oxide layer, or roughness development, may severely ...

Dissimilar Ti–Al laser weldings are very interesting due to their difficulties in being processed because of the different physical properties alloys and crack formations during cooling solidification. In this study, effect offset defocusing on microstructure, geometry mechanical response 2 mm thick dissimilar AA6061/Ti-6Al-4V welds was analyzed. Moreover, order reduce residual stresses, joints...

To study the dynamic shear deformation and failure properties of Ti-6Al-4V (Ti-64) alloy and Ti-5Al-5Mo-5V-1Cr-1Fe (Ti-55511) alloy, a series of forced shear tests on flat hat shaped (FHS) specimens for the two investigated materials was performed using a split Hopkinson pressure bar setup. The evolution of shear deformation was monitored by an ultra-high-speed camera (Kirana-05M). Localized sh...

Additive manufacturing (AM) of metals offers new possibilities for the production of complex structures. Up to now, investigations on the mechanical response of AM metallic parts show a significant spread and unexpected failures cannot be excluded. In this work, we focus on the detection of fatigue cracks through the integration of a Structural Health Monitoring (SHM) system in Ti-6Al-4V specim...