Surface treatment of the AISI 316L after welding and study of corrosion behaviour

Liptáková, Tatiana; Alaskari, Ayman; Halamová, Monika

doi:10.3311/pptr.7116

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…It should be taken into account that the pitting corrosion attack is related to the locale surface imperfections and therefore the corrosion rate cannot be the substantial factor in the evaluation of the local corrosion resistance [19,20,24]. As can be considered from Table 5 there is marked difference between the average corrosion rate of the as received specimens and the electropolished ones.…”

Section: Exposure Immersion Testmentioning

confidence: 99%

Corrosion Properties of Electropolished AISI 316L Austenitic Biomaterial in Relation to Electropolishing Conditions

Zatkalíková¹,

Markovičová²,

Uhríčik³

et al. 2021

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Electropolishing is recommended for various biomedical applications of austenitic biomaterials because it enables to achieve high brightness, very low surface roughness, excellent corrosion resistance and reduced bacterial attachment without residual surface tensions. The quality of an electropolished surface depends strongly on the composition of used electrolyte and on the applied electropolishing conditions. In this article the corrosion properties of eight AISI 316L surfaces electropolished in the same solution but at the different conditions were evaluated on the bases of the electrochemical impedance spectroscopy (EIS) test and exposure immersion test. The aim was to find whether in the frame of recommended electropolishing conditions (temperature, current density, time) the optimal combination exists which would provide the best corrosion properties of the surface passive film. The results showed that the electropolishing temperature 50 ºC should be preferred due to the lower roughness parameters and minimizing the possibility of the bacterial attachment.

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Section: Exposure Immersion Testmentioning

confidence: 99%

Corrosion Properties of Electropolished AISI 316L Austenitic Biomaterial in Relation to Electropolishing Conditions

Zatkalíková¹,

Markovičová²,

Uhríčik³

et al. 2021

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Corrosion behaviour of hydroxyapatite (HAP) coated AISI 316Ti austenitic biomaterial

Zatkalíková

Markovičová

Uhríčik

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

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HAP bioactive coatings are widely applied to improve the bone response in orthopedic and dental stainless steels implants. Mechanical properties of the metallic implant are preserved and moreover, HAP improves the corrosion resistance. This article deals with the corrosion resistance of AISI 316Ti austenitic biomaterial with electrochemically deposited HAP coating. Corrosion behaviour is evaluated on the bases of two independent methods-the electrochemical potentiodynamic polarization test and exposure immersion tests, both carried out in physiological solution (0.9 % NaCl) at the temperature 37 ± 0.5 °C. The microstructure and chemical composition of HAP coating is evaluated by SEM and EDX analysis. According to the results of the potentiodynamic test, the HAP coated biomaterial shows the considerably higher corrosion resistance compared to that without the HAP coating. However, the corrosion losses and SEM analysis after the exposure test revealed severe disruption of the HAP coating and the stainless steel substrate started to corrode.

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Corrosion behaviour of electropolished AISI 316L austenitic biomaterial in physiological solution

Zatkalíková

Markovičová

Skorvanova

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Surface treatment of the AISI 316L after welding and study of corrosion behaviour

Abstract: Abstract

Cited by 4 publications

References 4 publications

Corrosion Properties of Electropolished AISI 316L Austenitic Biomaterial in Relation to Electropolishing Conditions

Corrosion Properties of Electropolished AISI 316L Austenitic Biomaterial in Relation to Electropolishing Conditions

Corrosion behaviour of hydroxyapatite (HAP) coated AISI 316Ti austenitic biomaterial

Corrosion behaviour of electropolished AISI 316L austenitic biomaterial in physiological solution

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