XPS Analysis of Passive Film on Stainless Steel

Natarajan, R. Ananda; Palaniswamy, N.; Natesan, M.; Muralidharan, V.S.

doi:10.2174/1876503300902010114

Cited by 40 publications

(14 citation statements)

References 34 publications

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“…The peaks related to Cr 2p3 electron level were identified to be Cr 2 O 3 at 576.34 eV and NiCr 2 O 4 at 577.4 eV. The results obtained by XPS analysis are in agreement with those obtained by SEM analysis and with those obtained by other researchers[14,15].…”

supporting

confidence: 90%

Analyses of oxide films grown on AISI 304L stainless steel and Incoloy 800HT exposed to supercritical water environment

Fulger

Mihalache

Ohâi

et al. 2011

Journal of Nuclear Materials

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supporting

confidence: 90%

Analyses of oxide films grown on AISI 304L stainless steel and Incoloy 800HT exposed to supercritical water environment

Fulger

Mihalache

Ohâi

et al. 2011

Journal of Nuclear Materials

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“…Moreover, the coherent peaks of O 1s at 531 eV for SS‐TNL also signify that the surface is composed of a titanium oxide layer. Similar peaks observed on unmodified SS correspond to the metallic oxides and hydroxides of chromium and iron, respectively …”

Section: Resultsmentioning

confidence: 99%

Stable Titania Nanostructures on Stainless Steel Coronary Stent Surface for Enhanced Corrosion Resistance and Endothelialization

Mohan

Cherian

Kurup

et al. 2017

Adv Healthcare Materials

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Stainless steel (SS) coronary stents continue to present risk of in-stent restenosis that impact its long term safety and efficacy. The present work focuses on developing a drug-free and polymer-less surface on coronary stents by utilizing a titania (TiO ) nanotexturing approach through hydrothermal processing, that will offer improved stent performance in vivo. Mechanically stable and durable nanotextured coatings are obtained on SS stents that also offer good corrosion resistance. In vitro vascular cell (endothelial and smooth muscle cells) studies on surface modified SS show preferential rapid endothelialization with enhanced nitric oxide production and reduce smooth muscle cell proliferation, in comparison to unmodified SS. In vivo evaluation of the nanotextured stents after subcutaneous implantation in rabbits show reduced irritability and minimal localized inflammatory response. These beneficial effects suggest that the stable, easily scalable titania nanosurface modification strategy on coronary stent surfaces can be a much cheaper alternative to drug eluting stents in addressing in-stent restenosis.

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“…3(a) reveals that the surface of the Ni coating contained Ni species deconvoluted at 856.7 eV (most enriched), 857.7 eV and 858.6 eV (least enriched), with corresponding O 1s peaks at 532.4 eV and 533.5 eV. The binding energy at 856.7 eV is consistent with the formation of Ni(OH)2 [11,12,[19][20][21]. Although higher binding energies are commonly correlated with higher oxidation state species, the phenomenon for a Ni oxidation to Ni +3 was not observed during the polarization experiments.…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 73%

Ni Corrosion Product Layer During Immersion in a 3.5% NaCl Solution: Electrochemical and XPS Characterization

Onyeachu¹,

Oguzie²,

Ukaga³

et al. 2017

Port. Electrochim. Acta

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Long term wet corrosion resistance of metals depends on the stability of their corrosion product layer. With immersion corrosion tests, such stability can be predicted. EIS and potentiodynamic polarization were complemented with XPS to investigate the characteristics of Ni corrosion product layer formed after 1 hr. and 72 hr. immersion in 3.5% NaCl solution. Two time constants with decreasing Nyquist semi-circle size and phase angle maxima, based on EIS characterization during the immersion times, indicated the formation of an increasingly porous and less adherent corrosion product layer. The product formation shifted the Ni corrosion potential more negatively and increased cathodic and anodic current densities, during potentiodynamic polarization. XPS characterization suggested that a rapid nucleation of NiO could increase H2O adsorption, subsequently triggering the formation of different forms of Ni(OH)2 in the corrosion product layer. Consequently, the corrosion resistance of the Ni coating decreased after 72 hr. immersion in 3.5% NaCl solution.

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XPS Analysis of Passive Film on Stainless Steel

Cited by 40 publications

References 34 publications

Analyses of oxide films grown on AISI 304L stainless steel and Incoloy 800HT exposed to supercritical water environment

Analyses of oxide films grown on AISI 304L stainless steel and Incoloy 800HT exposed to supercritical water environment

Stable Titania Nanostructures on Stainless Steel Coronary Stent Surface for Enhanced Corrosion Resistance and Endothelialization

Ni Corrosion Product Layer During Immersion in a 3.5% NaCl Solution: Electrochemical and XPS Characterization

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