Nanostructured severe plastic deformation processed titanium for orthodontic mini-implants

Microstructure and anisotropy of the mechanical properties in commercially pure titanium after equal channel angular pressing with back pressure at room temperature

“…Commercially pure (CP) titanium is used in highly corrosive environments and in a variety of biomedical applications [4,15,22]. However, deficiencies in the mechanical strength of CP-Ti represent one of the primary obstacles to its widespread usability and often lead to its replacement with other Ti alloys.…”

“…Following these results, we studied the formability of grade 2 Ti via ECAP with very high BP at room temperature (RT) and analyzed the anisotropy of its mechanical properties. The anisotropy plays a crucial role in critical load-bearing applications, such as dental implants, for which ultra-fine grained CP-Ti is preferred [15]. In addition to anisotropy of the mechanical properties, the aim of this work is to analyze the severely deformed microstructure using a transmission electron microscope together with X-ray diffraction.…”

Nanomedicine applications in orthopedic medicine: state of the art

“…11 For instance, nanostructuring of metallic implantable devices enhances their mechanical properties and biocompatibility. 36 Nowadays, bulk nanocrystalline (NC; ,100 nm) and ultrafine-grained (UFG; ∼100-500 nm) metals including titanium (Ti) and their alloys can commercially be fabricated by severe plastic deformation (SPD) techniques 76 and powder metallurgy (P/M) 36 routes. Herein, a bulk metal or powder material is subjected to high plastic strains with complex stress state, leading to breaking the coarse grains down into nanoscale range.…”

“…Nanostructured Ti implants produced by SPD are bioinert without a potential toxic or allergic effects of alloying elements (such as Al and V) while having higher strength (.1,000 MPa) than conventional ones. 76 Very recently, Gain et al 55 have shown that UFG/NC P/M Ti implants have a higher strength and better ductility than common Ti-6Al-4V alloys and Ti parts processed by SPD. Estrin et al 77 79 investigated in vitro biocompatibility of UFG Ti produced by ECAP using MC3T3-E1 cells as compared to the commercially pure (CP) Ti and Ti-6Al-4V alloy.…”

Study of the Vickers hardness and corrosion behavior of experimental Ti-Mo alloy in dental office bleaching agents

“…It's well recognized that the release of aluminum and vanadium ions from the Ti-6Al-4V alloy might cause health problems, such as neurologic disorders and osteomalacia 10 . The development of non-toxic element β-type Ti alloys, such as Ti-Mo 6,8,11 , Ti-Nb [12][13][14] , Ti-Zr 15 and Ti-Ta [16][17][18] had been increased.…”