Corrosion of porous Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl

Abstract

The present research examined the corrosion and crevice corrosion behavior of porous specimens of Ti35Zr28Nb and CP Ti in Hanks’ solution at 37 °C and in 3.5 wt% NaCl at 95 °C. The following conclusions can be drawn. There was no crevice corrosion for porous specimens of Ti35Zr28Nb and CP Ti in Hanks’ solution at 37 °C and in 3.5 wt% NaCl at 95 °C. Both alloys had low corrosion rates in both solutions, and both alloys were passive in both solutions.

Novel β-Ti35Zr28Nb alloy scaffolds manufactured using selective laser melting for bone implant applications

“…The corrosion properties of the SLM-manufactured Ti35Zr28Nb bulk samples were evaluated using a VSP-300 Potentiostat (Bio-logic France) by the measurement of polarization curves and electrochemical impedance spectroscopy (EIS). A three-electrode cell was used [47,48].…”

Progress in partially degradable titanium-magnesium composites used as biomedical implants

“…Therefore, the corrosion behavior of titanium and magnesium composites in these solutions, such as Hanks’ solution, Ringer’s solution and SBF solution, is mainly dominated by the degradation of Mg. The pH, electrolytes, amino acids and proteins of these solutions are as close as possible to the actual human environment ( Bahraminasab et al, 2019 ; Heywood et al, 2019 ; Tiyyagura et al, 2020 ). Ti plays an important role in the degradation process of Mg.…”

“…Magnesium phosphate is then further reacted to produce hydroxyapatite. These insoluble apatite components are predicted to act as nucleation sites for the inward growth of new bone after the implantation process, thereby improving bio-compatibility and osseointegration standards ( Heywood et al, 2019 ; Zhou H. et al, 2021 ). The reactions are follows.…”

A dense and compact laser cladding layer with solid metallurgical bonding significantly improved corrosion resistance of Mg alloy for engineering applications

“…Anticorrosion performance could be quickly understood from the electrochemical tests of the samples, such as corrosion potential and corrosion current density, that could be determined by the potentiodynamic polarization curves. [33][34][35] Potentiodynamic polarization tests were conducted using a CHI660C three-electrode system, in which a saturated calomel electrode and a platinum electrode were used for the reference electrode and the counter electrode, respectively. Before potentiodynamic polarization tests, the surface of the samples was mechanically polished and then cleaned by ethanol with a purity of 99.7%.…”