Passivity of AlCrFeMnTi and AlCrFeCoNi high–entropy alloys in Hanks’ solution

Tanji, Ayoub; Feng, Rui; Lyu, Zongyang; Sakidja, Ridwan; Liaw, Peter K.; Hermawan, Hendra

doi:10.1016/j.corsci.2022.110828

Cited by 7 publications

(2 citation statements)

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“…The latest generation of bionanomaterials that can give hope to hundreds of thousands of patients waiting in queues for their health and life include oxide nanotubes (ONTs) inspired by the structure of bamboo obtained on titanium and titanium alloys intended for long-term implants [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Currently, titanium and its alloys are commonly used metallic biomaterials in medicine due to their unique properties, which include high corrosion resistance [ 1 , 4 , 5 , 6 , 11 , 15 , 20 , 22 , 23 , 24 , 25 , 26 , 27 ], biological inertness [ 1 , 11 , 28 ], low specific gravity and excellent mechanical properties [ 1 , 7 , 16 , 24 , 29 , 30 , 31 , 32 , 33 , 34 ]. In vitro corrosion resistance of metallic biomaterials affects their functionality and durability.…”

Section: Introductionmentioning

confidence: 99%

“…It is also the main factor that determines biocompatibility. According to the fundamental paradigm of metallic biomaterials, which does not apply only to biodegradable metals, the more corrosion-resistant a biomaterial is, the greater its biocompatibility [ 27 ]. The Ti–13Zr–13Nb alloy belongs to the newest group of titanium alloys, which do not contain allergenic nickel or aluminum and carcinogenic vanadium [ 4 , 5 , 11 , 12 , 13 , 14 , 15 , 18 , 19 , 23 , 32 , 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

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In Vitro Bioelectrochemical Properties of Second-Generation Oxide Nanotubes on Ti–13Zr–13Nb Biomedical Alloy

et al. 2023

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Surface charge and in vitro corrosion resistance are some of the key parameters characterizing biomaterials in the interaction of the implant with the biological environment. Hence, this work investigates the in vitro bioelectrochemical behavior of newly developed oxide nanotubes (ONTs) layers of second-generation (2G) on a Ti–13Zr–13Nb alloy. The 2G ONTs were produced by anodization in 1 M (NH4)2SO4 solution with 2 wt.% of NH4F. The physical and chemical properties of the obtained bamboo-inspired 2G ONTs were characterized using scanning electron microscopy with field emission and energy dispersive spectroscopy. Zeta potential measurements for the examined materials were carried out using an electrokinetic analyzer in aqueous electrolytes of potassium chloride, phosphate-buffered saline and artificial blood. It was found that the electrolyte type and the ionic strength affect the bioelectrochemical properties of 2G ONTs layers. Open circuit potential and anodic polarization curve results proved the influence of anodizing on the improvement of in vitro corrosion resistance of the Ti–13Zr–13Nb alloy in PBS solution. The anodizing conditions used can be proposed for the production of long-term implants, which are not susceptible to pitting corrosion up to 9.4 V.

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