Electrochemical comparative study on corrosion behavior of conventional and powder metallurgy titanium alloys in physiological conditions

Ureña, J.; Gordo, E.; Ruiz-Navas, E.M.; Vilaboa, Nuria; Saldaña, Laura; Jiménez-Morales, Antonia

doi:10.1016/j.mprp.2016.04.003

Cited by 9 publications

(11 citation statements)

References 14 publications

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“…For future research it should be considered to measure the viability for a longer period. Overall, these results correspond to studies conducted with MSCs cultured on both forged and powder metallurgical Ti64 [26], studies on differentiated MLO-A5 cell line cultured on 2D Ti64 discs [27], and MG-63 cell line cultured on laser melted Ti64 scaffolds [28]. We can conclude that increased activity on both material and 3D topology can be seen for BMSCs, corroborating with previous findings.…”

Section: Resultssupporting

confidence: 91%

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Revealing the influence of electron beam melted Ti-6Al-4V scaffolds on osteogenesis of human bone marrow-derived mesenchymal stromal cells

Ødegaard

Ouyang

et al. 2021

J Mater Sci: Mater Med

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Porous Titanium-6Aluminum-4Vanadium scaffolds made by electron beam-based additive manufacturing (AM) have emerged as state-of-the-art implant devices. However, there is still limited knowledge on how they influence the osteogenic differentiation of bone marrow-derived mesenchymal stromal cells (BMSCs). In this study, BMSCs are cultured on such porous scaffolds to determine how the scaffolds influence the osteogenic differentiation of the cells. The scaffolds are biocompatible, as revealed by the increasing cell viability. Cells are evenly distributed on the scaffolds after 3 days of culturing followed by an increase in bone matrix development after 21 days of culturing. qPCR analysis provides insight into the cells’ osteogenic differentiation, where RUNX2 expression indicate the onset of differentiation towards osteoblasts. The COL1A1 expression suggests that the differentiated osteoblasts can produce the osteoid. Alkaline phosphatase staining indicates an onset of mineralization at day 7 in OM. The even deposits of calcium at day 21 further supports a successful bone mineralization. This work shines light on the interplay between AM Ti64 scaffolds and bone growth, which may ultimately lead to a new way of creating long lasting bone implants with fast recovery times.

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Section: Resultssupporting

confidence: 91%

“…Due to this, we relate this decrease to an isolated case. Moreover, other studies have reported increasing cell viability of BMSCs throughout 21 days of culturing [ 25 , 26 ]. For future research it should be considered to measure the viability for a longer period.…”

Section: Resultsmentioning

confidence: 98%

Revealing the influence of electron beam melted Ti-6Al-4V scaffolds on osteogenesis of human bone marrow-derived mesenchymal stromal cells

Ødegaard

Ouyang

et al. 2021

J Mater Sci: Mater Med

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“…5 due to the information obtained from Nyquist and 10 -2 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 Bode plots. This equivalent circuit was previously used in a similar work in order to model the corrosion resistance of similar Ti alloys produced by powder metallurgy [33]. This equivalent circuit describes the behaviour of porous passive layers where the metal-electrolyte interactions take place into the layer's pores situated on the metal surfaces.…”

Section: Electrochemical Characterization: Corrosion Behaviourmentioning

confidence: 99%

Corrosion and tribocorrosion behaviour of β-type Ti-Nb and Ti-Mo surfaces designed by diffusion treatments for biomedical applications

et al. 2018

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Corrosion and tribocorrosion behaviour of modified Ti surfaces through thermochemical treatments has been studied. Electrochemical Impedance Spectroscopy (EIS) and reciprocating sliding tests using a ball-on-plate tribometer under 1 N load and alumina as counter-material were used to evaluate the influence of Nb and Mo on titanium corrosion and tribocorrosion properties. Ti-Nb and Ti-Mo surfaces exhibited better anticorrosive properties than CP-titanium. Under tribological action the modified Ti surfaces showed similar coefficient of friction and lower tendency to corrosion compared to CP-Ti. Furthermore, Nb diffusion increased the repassivation rate with respect to Ti and Ti-Mo surfaces due to its stable passive film.

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“…After several attempts to simulate the EIS results with different equivalent circuits used for PM materials, [42][43][44] the quality of the fittings and the possibility in the low frequency region, of assigning a physical meaning to the circuit components led to manage the used to simulate the electrochemical behavior of PM SS, 43 and wrought SS 44 (Figure 9).…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Corrosion Properties of a Low-Nickel Austenitic Porous Stainless Steel in Simulated Body Fluids

2018

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Nickel can cause severe allergic reactions. Therefore, efforts are made to reduce the content of nickel in austenitic stainless steels (SS). Powder metallurgy (PM) techniques can produce this steel in a highly affordable way. A novel low-nickel high-nitrogen austenitic powder metallurgy PM stainless steel is investigated in terms of corrosion behavior. Nitrogen, because of its gammagenic effect, is the applied sintering atmosphere. Two sintering processes are applied by controlling the sinter-cooling rate (furnace- and water-cooling). This material shows an austenitic microstructure free of precipitates only after the water-cooling process. The electrochemical behavior in two simulated body fluids—phosphate buffered saline (PBS) solution and Ringer solution—are studied. Corrosion behavior is evaluated by means of anodic polarization measurements and cyclic polarization curves. In addition, Electrochemical Impedance Spectroscopy is used to evaluate the corrosion resistance of this steel in PBS at open circuit potential and at 100 mV above corrosion potential. The water-cooling process promotes better corrosion behavior in simulated body fluids for high nitrogen and low nickel than a conventional (high nickel) austenitic PM SS 316LN type.

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Electrochemical comparative study on corrosion behavior of conventional and powder metallurgy titanium alloys in physiological conditions

Cited by 9 publications

References 14 publications

Revealing the influence of electron beam melted Ti-6Al-4V scaffolds on osteogenesis of human bone marrow-derived mesenchymal stromal cells

Revealing the influence of electron beam melted Ti-6Al-4V scaffolds on osteogenesis of human bone marrow-derived mesenchymal stromal cells

Corrosion and tribocorrosion behaviour of β-type Ti-Nb and Ti-Mo surfaces designed by diffusion treatments for biomedical applications

Corrosion Properties of a Low-Nickel Austenitic Porous Stainless Steel in Simulated Body Fluids

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