Crystal structure and nanotopographical features on the surface of heat-treated and anodized porous titanium biomaterials produced using selective laser melting

Failure mechanisms of additively manufactured porous biomaterials: Effects of porosity and type of unit cell

“…The parent material was of high quality as indicated by the very small percentage of pores (see e.g. Figure 5 in (Amin Yavari, Wauthle, et al, 2014)) in the parent material. High density of the parent material is crucial when studying the mechanical properties of additively manufactured porous biomaterials and that is why, in our experimental studies, we accept the parent material to be of acceptable quality only when its density well exceeds 90% (typical values of density >99%)"…”

Functionalization of Ti6Al4V scaffolds produced by direct metal laser for biomedical applications

“…In general, anodic oxide layers grown on titanium and its alloys in acidic HF-containing electrolytes exhibit duplex structure comprising by an outer nanoporous/nanotubular layer in contact with the electrolyte, and an inner compact layer (barrier layer) at the bottom of the nanotube/nanopore adjacent to the substrate [19][20][21]. This technique has been widely used to fabricate TiO 2 nanotubes with different properties such as dye-sensitization [22], controlled wettability [23], photocatalytical [24] or biomedical [25,26] but a few papers deals with the anodization of materials produced by Direct Metal Laser Sintering [27,28]. Therefore, the objective of this paper is to produce DMLS specimens of Ti6Al4V alloy and its surface modification by electrochemical oxidation with a particular focus on the corrosion properties of the functionalized alloy surface.…”

Mechanics of additively manufactured porous biomaterials based on the rhombicuboctahedron unit cell

“…Selective laser melting (SLM) [16], selective laser sintering (SLS) [17], and electron beam melting (SEBM) [18] are among the additive manufacturing techniques that could be used for manufacturing of porous titanium biomaterials.…”