Austenitic and duplex stainless steels in simulated physiological solution characterized by electrochemical and X‐ray photoelectron spectroscopy studies

Kocijan, Aleksandra; Conradi, Marjetka; Schön, Peter

doi:10.1002/jbm.b.32513

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…It is known that very low concentrations of cobalt cause significant expression of endothelial cell adhesion molecule as well as adhesion of polymorphonuclear neutrophil granulocytes to endothelial cells in vitro [33]. Because chromium ions can be triggered by chemical dissolution, which is enhanced in protein containing media, the amount of ions released must be carefully monitored [34,35]. Small chromium ions quantities are nontoxic, but a high concentration into human body may induce carcinogenic risk [36].…”

Section: Discussionmentioning

confidence: 99%

Surface Morphology and Histopathological Aspects of Metallic Used Cardiovascular CoCr Stents

Pandelea-Dobrovicescu

Prodana

Golgovici

et al. 2020

Metals

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In this study, CoCr cardiovascular metallic stents with the same chemical composition as well as the adjacent tissues were analyzed. Recovered stents and adjacent tissues were characterized by surface morphology techniques like light microscopy (LM), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDS) and transmission electron microscopy (TEM). The presence of metals in the tissue from around explanted stent was also confirmed by TEM method. The released metal ions were measured using inductively coupled plasma mass spectrometry (ICP-MS). Histopathological analysis was used to highlight host tissue response to the implanted stents. EDX analysis revealed that 21 stents had the same composition. The quantities of Cr ions detected in the tissues were between 5 and 14 ppb and for Co ions were between 4 and 10 ppb. The tissue sections near the layers that generated large quantities of ions showed restenosis development and the deposits of surface calcifications were highlighted. The heavy metal levels observed in this study due to corrosion are too low to cause a systemic toxic response.

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Section: Discussionmentioning

confidence: 99%

Surface Morphology and Histopathological Aspects of Metallic Used Cardiovascular CoCr Stents

Pandelea-Dobrovicescu

Prodana

Golgovici

et al. 2020

Metals

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“…Due to its lower cost compared to titanium and cobalt-based alloys and ease of manufacturing in combination with relatively high corrosion resistance, AISI 316L stainless steel soon became one of the most commercially available biomaterials for implant manufacturing [7,8]. However, its lower resistance to some forms of localized corrosion, such as pitting and crevice corrosion, led to its gradual replacement with higher corrosion-resistant materials including duplex steel [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Results in several published papers have shown similar biocompatibility of austenitic and austenitic-ferritic steel. The replacement of austenitic stainless steel with austenitic-ferritic in orthodontic treatments reduces costs and nickel hypersensitivity in patients [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Different Types of Stainless Steel in PBS Solution

et al. 2022

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Anodic and spontaneous corrosion of different types of stainless steel (AISI 304L, AISI 316L and 2205 DSS) in phosphate-buffered saline solution (PBS, pH = 7.4) at 37 °C (i.e., in simulated physiological solution in the human body) were examined using open circuit potential measurements, linear and cyclic polarization, and electrochemical impedance spectroscopy methods. After the anodic and spontaneous corrosion, the surface of the tested samples was investigated by light and scanning electron microscopy (SEM) with EDS analysis. It has been established that the tendency of the examined steel materials towards local corrosion decreases in the order: AISI 304L < AISI 316L < 2205 DSS. Namely, the possibility of repassivation and the resistance to local corrosion increases in the same order. The corrosion resistance of steel samples at open circuit potential is a consequence of forming a natural oxide film with a bi-layer structure and consists of an inner barrier and an outer porous film. The inner barrier film has a small thickness and extremely high resistance, while the outer porous film is much thicker but also has significantly lower resistance. The inner barrier layer mainly prevents corrosion of examined steel samples in order: AISI 304L < AISI 316L < 2205 DSS. Light microscopy and SEM/EDS analysis after pitting and spontaneous corrosion showed damage on the AISI 304L and AISI 316L surface, while the surface of 2205 DSS was almost undamaged by corrosion.

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“…There have been comparative in vitro experimental studies of many duplex stainless steels with AISI 316L austenitic stainless steel, titanium, titanium, and cobalt alloys being other metallic implants in the existing literature. According to data obtained in these studies, there have been results indicating that duplex stainless steel could be a good alternative to other metallic biomaterials [5,[14][15][16][17][18]. There is a need to perform some tests to detect corrosion behaviors of materials to be used as an implant [19].…”

Section: Introductionmentioning

confidence: 99%

Characterization of weld seam surface and corrosion behavior of laser-beam-welded AISI 2205 duplex stainless steel in simulated body fluid

Köse

2020

J Mater Sci

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In this study, AISI 2205 duplex stainless steel was joined with laser welding. Base material and laser-welded samples were kept in simulated body fluid (SBF) for 1, 3, 7, 14, 21, and 28 days. This research investigated microstructure, hydroxyapatite (HA) structure formed on surfaces, surface topography, and corrosion properties of samples which were kept in SBF. Characterization studies were performed by using microhardness, optical microscope, macroscope, SEM-EDS, XRD, and atomic force microscope. According to results, it was found out that HA accumulation was higher on base material surface when compared to weld seam surface, and also calcium-deficient carbonate HA structure with low crystallinity was observed on all surfaces. Very low corrosion rates due to very low weight losses were detected in all samples kept in SBF. The results showed us that heat input changes had an important effect on surface roughness values (R a ), apatite morphology on weld seam surfaces, and corrosion behaviors. Overall, it is considered that laser-welded duplex stainless steel can be used as an implant material depending on surface characterization and corrosion behaviors.

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Austenitic and duplex stainless steels in simulated physiological solution characterized by electrochemical and X‐ray photoelectron spectroscopy studies

Cited by 8 publications

References 20 publications

Surface Morphology and Histopathological Aspects of Metallic Used Cardiovascular CoCr Stents

Surface Morphology and Histopathological Aspects of Metallic Used Cardiovascular CoCr Stents

Corrosion Behavior of Different Types of Stainless Steel in PBS Solution

Characterization of weld seam surface and corrosion behavior of laser-beam-welded AISI 2205 duplex stainless steel in simulated body fluid

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