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Showing 1 to 20 of 31 for “"Ti6Al4V"”.
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Adhesion of Dental Ceramic to Ti6Al4V Alloy Fabricated by CAD/CAM Technologies // Адхезия на дентална керамика към сплав Ti6Al4V, произведена чрез CAD/CAM технологии
… properties and adhesion of dental ceramics to Ti6Al4V alloy produced by modern CAD/CAM technologies: milling and selective laser melting (SLM). Conventional and standard methods are used to investigate the geometric characteristics, density and hardness, morphology and surface roughness of the …
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RISPOSTA MECCANICA DELLA LEGA Ti6Al4V-ELI PRODOTTA PER ELECTRON BEAM MELTING
La lega Ti6Al4V-ELI (Ti Grade 23) è ampiamente adottata in molte applicazioni industriali in diversi campi d’applicazione tra cui aerospaziale, biomeccanica e automobilistico. La tecnologia additiva negli anni ha permesso di estendere la gamma di possibili applicazioni ma ha introdotto anche …
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Influence of laser scan rate on the mechanical properties of SLM TI6AL4V alloy
… laser melting (SLM) process from a Grade 5 Ti6Al4V metal powder; the laser scan speed was varied from 1.5 m/s to 4 m/s, while other process parameters were kept constant. Test procedures and specimens were designed in accordance with the ASTM E8/E8M, ASTM E399 and ASTM E647 standards and the …
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Osseointegration potential for heat treated 3D Ti6Al4V scaffolds seeded with mysenchymal stem cells in vitro
Aseptic loosening of artificial joints occurs due to the loss of implant fixation. By implementing a 3D porous structure at the bone-implant interface, the ingrowth of bone will permit better and stronger interlocking of the implant to prevent loosening. In this study, it is hypothesized that the …
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The effects of cathodic polarization and simulated infection on the electrochemical properties of CoCrMo and coupled Ti6Al4V+CoCrMo alloy
… as well as, titanium-6%aluminum-4%vanadium (Ti6Al4V) coupled with cobalt-chromium-molybdenum. A coupled coupon of Ti6Al4V+CoCrMo was made by using an EPOXY resin to hold the two metals onto the same sample. Normal conditions consisted of each sample being submerged in phosphate buffer saline …
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A Rubric for Electrochemical Testing of Metallic Biomaterials
… both AISI 316 stainless steel and titanium alloy Ti6Al4V, welded and non-welded. Linear, potentiodynamic, and cyclic polarization curves were produced by the PARC 2273 potentiostat showing the corrosion tendencies of the metals in four unique solutions 3.5% NaCl, 0.35% NaCl, phosphate buffered …
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Mechanical property and meso-structure assessment of Ti6Al4V parts as a function of high-speed selective laser melting practice (Additive Manufacturing)
… particularly titanium-6-aluminium-4-vanadium (Ti6Al4V), manufactured by 3D printing, also known as additive manufacturing, is fast evolving in several industries including the aerospace industry, medical industry, and the automotive industry. At present, titanium parts fabricated by additive …
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A study on the effect of increased heat input on residual stress, microstructure evolution and mechanical properties in Ti6Al4V selective laser melting
… during processing. It is capable of producing Ti6Al4V low volume, high value and high integrity components required by the aerospace industry. Commercial selective laser melting (SLM) systems are a good benchmark for the type of quality needed in the integrity of aerospace components although …
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Study on Low-cost Alternatives for Synthesising Powder Metallurgy Titanium and Titanium Alloys
… of induction sintering of Ti and pre-alloyed Ti6Al4V powders. This initial work included the following investigations: the effect of powder compact density on induction heating rates, the levels of porosity and the tensile properties of sintered samples; and the effect of induction sintering …
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Grain refinement in cast titanium 6-aluminium 4-vanadium by hydrogenation, deformation and recrystallisation
Wrought Ti6Al4V has attractive mechanical properties but its usage is limited to highend aerospace applications because it is costly to machine components from wrought stock. Investment casting is an alternative component manufacturing route but cast components have inferior mechanical properties …
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Uso y validación de la impedancia eléctrica para la caracterización de materiales para aplicaciones biomédicas
… el titanio comercialmente puro y la aleación Ti6Al4V. Sin embargo, presentan limitaciones como el apantallamiento de tensiones por la diferencia entre sus módulos de Young (105-114 GPa) y el del hueso (20-25 GPa), así como la liberación de iones de aluminio en Ti6Al4V, relacionados con el …
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Sources of Quality Uncertainty in Laser Powder Bed Fusion Metal Additive Manufacturing
… manufacturing processing parameters needed for Ti6Al4V. Second, this work addresses the uncertainty challenge by identifying the sources of uncertainty in SLM by in-situ characterization due to variations from the additive manufacturing processing parameters needed for Ti6Al4V. We show that …
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Tření a mazání biomateriálů s modifikací povrchu pro kloubní implantáty
… mazání a opotřebení u biomateriálů CoCrMo a Ti6Al4V. Byly provedeny reciproční třecí testy v konfiguraci pin-on-plate a analýza topografie povrchů. U vybraných dvojic byl sledován také vývoj tloušťky mazacího filmu pomocí fluorescenční mikroskopie a opotřebení při dlouhodobých testech. …
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Corrosion And Wear Resistance Of Titanium- And Aluminum- Based Metal Matrix Composites Fabricated By Direct Metal Laser Deposition
… Titanium based composites were deposited onto a Ti6Al4V plate while aluminum composites were deposited onto AA 7075 and AA 5083 for Al1 and Al2, respectively. Microstructures of the MMCs were studied by optical and scanning electron microscopy. The hardness and reduced Young's modulus (Er) were …
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Bacterial biofilms and biomineralisation on titanium
… coli was compared on commercially pure titanium, Ti6Al4V alloy, pure aluminium and pure vanadium. Grain boundaries, grain orientation and alloy phase structure did not influence adhesion or early proliferation. Adherence of all four strains was equivalent on pure titanium and Ti6Al4V and inhibited …
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Effects of powder conditioning on the quality, microstructure and mechanical properties of sintered titanium alloys
… Er and LaB6 additions were added to Ti and Ti6Al4V alloys directly. The Ti(Ti6Al4V)-Y alloy was made by mechanical milling (MM). But direct Er additions caused a segregated microstructure and processing involving the MM of Ti(Ti6Al4V)-Y leaded to oxygen pick-up. These methods are therefore …
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Investigation into the surface modification of Ti-6Al-4V to facilitate antimicrobial ionic silver integration for use in implantable orthopaedic devices
… in Ra post Ag ion implantation and the polished Ti6Al4V samples showed an increase in Ra. This was due to preferential erosion of areas with high free surface energy. In the case of both TiO2s these were “high points” in the oxide and for polished Ti6Al4V these were the grain boundaries. Both …
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Additive manufacturing of triply periodic minimal surface informed load bearing stiffness matched tibial bone scaffold
… goal is to design and fabricate titanium (Ti6Al4V) scaffolds that provide optimal load-bearing capacity while closely matching the stiffness of the host bone, thereby promoting better integration and reducing the risk of implant failure. TPMS structures are selected due to their unique …
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PROGETTAZIONE DI DISPOSITIVI MEDICI INNOVATIVI PER PATOLOGIE ORTOPEDICHE
… sono stati realizzati in lega di titanio Ti6Al4V-ELI e prodotti con tecnologia additiva EBM, che sfrutta l’energia generata da fascio di elettroni per fondere la polvere della lega metallica. Le prime valutazioni sperimentali eseguite hanno mostrato risultati incoraggianti, i nuovi sistemi …
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Sustainable Machining of Aerospace Alloys for Improved Product and Process Sustainability: Evaluation of Dry, Near-dry (MQL) and Cryogenic Machining Processes
… for aluminum AA7075-T651 and Titanium Ti6Al4V alloys and the major objectives are: -Improve the process sustainability performance by improving the environmental impact in terms of hazard, energy consumption and tool wear; -Investigating the influence of processing conditions, …
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