Fatigue resistance of nanocrystalline commercial pure titanium obtained by hydrostatic extrusion was investigated. Coarse grained titanium and Ti6Al4V alloy were used as the reference materials. The fatigue limit and fatigue life examined at constant stress amplitude, were found to increase significantly compared to those of the coarse-grained counterparts. It is suggested that the observed imp...

The frequency of surgeries involving the use metal implants in orthopedic medicine to replace degenerative or fractured joints is increasing, and it therefore important optimize lifespan quality these implants. Advances additive manufacturing (AM), 3D printing, are creating new opportunities personalize ways that reduce mechanical stress at joint implant interface improve bone ingrowth stabilit...

The article presents the results of ultrasonic testing Ti6Al4V material produced by conventional method and laser bed fusion method. Modern manufacturing techniques, such as additive manufacturing, allow production parts with complex shapes. It is important to control condition components throughout their lifetime. purpose this was determine basic acoustic properties two different methods—bar d...

The original intent of coating biomedical and surgical devices surface with antibacterial agents is to prevent infections. However, the difference in material properties between materials causes spall from devices. To address situation, current research focused on investigating possibility using laser powder bed fusion process a subset additive manufacturing technology situ alloy 1 at% Cu Ti6Al...

To improve the biocompatibility of implants, surface medication is a common practice. Depending on the surface medication process, the physical and/or chemical properties of the surface are altered, keeping the bulk properties same. The flexibility and wide application potential of laser as a surface modification tool gives it certain advantages over the traditional physical and chemical proces...

Present paper reports on the results of surface modification of the additively manufactured porous Ti6Al4V scaffolds. Radio frequency (RF) magnetron sputtering was used to modify the surface of the alloy via deposition of the biocompatible hydroxyapatite (HA) coating. The surface morphology, chemical and phase composition of the HA-coated alloy were studied. It was revealed that RF magnetron sp...

Pure and 10 wt% 80Al2O3-20TiO2 reinforced hydroxyapatite coatings were successfully deposited on Ti6Al4V substrate by plasma spray technique for bio medical applications. Post coating heat treatment was carried out to study the effect of heat treatment on improvement in micro structure and mechanical properties of coatings. Coating was characterized by SEM/EDAX and XRD analysis. Positive impact...

Pure and calcium-doped silica and titanium dioxide thin films were prepared by the sol-gel method. Two different metallic substrates, i.e. stainless steel (316L) and titanium alloy (Ti6Al4V), were used for thin film deposition. Physicochemical properties and roughness of the thin films derived were investigated using the Raman spectroscopy, X-ray diffraction analysis, scanning electron microsco...

This paper reports the dynamic elastic constants of laser powder bed fusion additively manufactured Ti6Al4V alloy by recently developed effective bulk modulus elastography technique and compares them with static evaluated using nanoindentation technique. With this technique, two ultrasound frequencies (10 MHz 20 MHz) were employed, which distinctly identified spatially varying density in while ...

Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine aerospace industries, have played a vital role different manufacturing industries. An efficient cost-effective way of joining this metal by laser welding. The effect power welding speed on tensile, microhardness, microstructure Ti6Al4V alloy investigated paper. Results show that microhardness highest at fusion...