Effect of concentration and surface roughness on corrosion behavior of Co–Cr–Mo alloy in hyaluronic acid

Khobragade, Nilay N; Bansod, Ankur V.; Giradkar, Karansagar V; Patil, Awanikumar P.; Jagtap, Ketan; Pawde, Raju; Moon, A. P.

doi:10.1088/2053-1591/aaa5f2

Cited by 10 publications

(3 citation statements)

References 46 publications

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“…The EIS data were further analyzed with an equivalent electrical circuit (EEC) with two time constants (Figure 5). This circuit has been used by other researchers in the field 24‐26 . The first time constant is attributed to an outer layer, that is, the adsorbed layer of organic species, such as proteins and HA.…”

Section: Resultsmentioning

confidence: 99%

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

et al. 2020

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Nickel‐free, high‐nitrogen austenitic steels (AHNS) have been introduced for biomedical applications, with encouraging results in terms of mechanical and corrosion properties. Here, we tested the corrosion resistance of a nickel‐free high nitrogen steel (FeCrMnMoN0.9) in bovine serum solutions containing 0 or 3 g/L hyaluronic acid (HA), and 0, 3, or 30 mM hydrogen peroxide (H2O2) simulating no, moderate, or strong inflammatory conditions, respectively. Nondestructive electrochemical measurements (open circuit potential [OCP], linear polarization resistance “RP”, and electrochemical impedance spectroscopy) were run in triplicate over 10 hr. The presence of HA had no significant effect either on the stabilized OCP values, or on the corrosion resistance of FeCrMnMoN0.9. Increasing H2O2 concentrations shifted the OCP to more electropositive values; the corrosion resistance decreased only at a 30 mM H2O2. Final RP values at 0, 3, and 30 mM H2O2 resulted in 1598 ± 276, 1746 ± 308, and 439 ± 47 kΩ cm2, respectively. These values were 4–14 times higher, than the RP values measured on LC‐CoCrMo in our previous study, conducted under identical conditions. While these findings are encouraging, future studies need to focus on tribocorrosive properties of the AHNS to evaluate its applicability in joint replacement.

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Section: Resultsmentioning

confidence: 99%

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

et al. 2020

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“…However, to further lower costs and allow access to dental prostheses to sectors of society with low resources and who cannot access the aforementioned alloys, copper based alloys such as Cu-Al, Cu-Ni appeared on the market and Cu-Zn, in the Latin American countries Brazil and Argentina and very little in the United States, as mentioned in international publications [8][9][10][11][12][13]. In recent years, research has been carried out on individual and combined non-precious dental alloys in order to evaluate their electrochemical behavior in solutions that simulate natural saliva [14][15][16][17][18][19]. However, it is necessary to carry out further studies and tests related to the release of metal ions from these alloys in the oral environment and the physiological effects they produce in users.…”

Section: Introductionmentioning

confidence: 99%

Ion release from non precious dental alloys in the oral cavity

2022

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Dental alloys in the oral cavity release ions by corrosive action of saliva, which are deposited in the lower part of the mouth, others diffuse through the gums and most of them pass to the gastrointestinal system. In the present work, nine dental alloys frequently used in our country by people with low resources (316L stainless steel, low and high copper silver amalgams, Co-Cr and Ni-Cr alloys, Cu and Ti-6Al-4V base alloys). Its open circuit corrosion potential was measured, its potentiodynamic polarization curves were plotted and corrosion products were analyzed by EDAX, finding Hg, Ag, Ni, Co, Cu, Zn and Si ions, which can affect the health of users, so it is recommended that dentists and dental technicians inform patients who suffer from hypersensitivity do not use alloys containing potentially allergic metals.

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“…In recent years, investigations of biocorrosion, galvanic corrosion, wear corrosion, fatigue corrosion and stress corrosion of titanium have been carried out with Co-Cr, Ni-Cr and stainless steels in different physiological solutions to determine their resistance to corrosion and use them in various biomedical applications, including orthodontic wires with memory, crowns and dental bridges, endo-osseous dental implants and plates for oral and maxillary surgery [5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Artigo Retratado

2021

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In this work, the open-circuit corrosion potentials of the alloys studied in aerated artificial saliva were determined; in the same solution, the potentiodynamic polarization curves of said alloys have been drawn. The corrosion potentials and current intensities of the galvanic coupling of the Ti-6Al-4V alloy with the Co-Cr and Ni-Cr alloys were determined using the Evans method, finding that the galvanic couples more resistant to corrosion in the electrolytic medium considered are those formed between the Ti alloy and the Co-Cr alloys; the least resistant are those formed between Ti alloy and Ni-Cr alloys. The corroded surfaces of the seven alloys considered in this work were also studied, and by EDAX the corrosion products due to the ions detached in the electrolytic medium were analyzed.

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Effect of concentration and surface roughness on corrosion behavior of Co–Cr–Mo alloy in hyaluronic acid

Cited by 10 publications

References 46 publications

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

Ion release from non precious dental alloys in the oral cavity

Artigo Retratado

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