In vitro corrosion behavior and cytocompatibility of pure Fe implanted with Ta

Abstract

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Effect of Recrystallization Annealing on Corrosion Behavior of Ta-4%W Alloy

“…Ghorbani et al [11] reported that Ta film can strongly enhance the corrosion resistance of the 316L stainless steel in Ringer’s solution. Wang et al [12] suggested that the Ta ion implantation is an effective method to improve the cytocompatibility of pure Fe for biomedical applications and only the Ta ion dosage reaching a critical value can significantly increase corrosion resistance in the solution containing SO 4 2− . Moreover, Wei et al [13] coated Ta alloy on the surface of pure titanium and found that the Ta coating shows excellent corrosion resistance in different concentrations of sulfuric acid.…”

Analysis of corrosion behaviour and surface properties of plasma-sprayed composite coating of hydroxyapatite–tantalum on biodegradable Mg alloy ZK60

“…Furthermore, the higher I corr value of the uncoated sample, which was 1050E-06 A/cm 2 , and lowest I corr value of HA-30Ta further validated that this coating had the highest corrosion resistance. 53 The micro-cracks and micro-pores (Figure 5(b)) present at the Ta coating could be the reason for its lower E corr and higher I corr values as compared to the HA coating. The structural imperfections such as cracks/pores in a coating facilitate corrosion under the coating or on the surface of the substrate which leads to leaching of ions resulting in lower corrosion resistance.…”

The Clinical Application of Porous Tantalum and Its New Development for Bone Tissue Engineering

“…Ta has excellent biocompatibility and corrosion resistance, has been used in pacemaker electrodes, suture wire, cranioplasty plates, radiopaque markers, foil and mesh for nerve repair since the 1940s [ 5 ]. In addition, Ta has been used as single or composite coating material to modify the biological and mechanical properties of pure titanium(Ti) [ 6 , 7 , 8 ], Ti alloy (Ti6Al4V) [ 9 ], polyetheretherketone (PEEK) [ 10 ], cobalt-chromium (CoCr) alloy [ 11 , 12 ], magnesium-based alloy [ 13 ], pure Fe [ 14 ] and 316 L stainless steel [ 15 ]. Recently, the advent of Ti-Ta alloy with different Ta element contents indicates a novel means to fabricate implants for bone defect restoration with improved mechanical strength, and satisfactory elastic modulus and biological properties, compared to pure Ti and Ti alloy [ 2 , 16 , 17 ].…”