The native oxide film on a model aluminium-copper alloy studied by XPS and ToF-SIMS

Cornette, Pascale; Zanna, Sandrine; Seyeux, Antoine; Costa, Dominique; Marcus, Philippe

doi:10.1016/j.corsci.2020.108837

Cited by 83 publications

(58 citation statements)

References 51 publications

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“…The spectra at low θ have a well‐developed peak located at dashed line 3, whereas with an increase in θ , a feature at lower E B becomes more intense (the positions for dashed lines 1 and 2). Such spectral differences with an increase in θ can result from oxidized carbonaceous species adsorbed onto top of the oxidized brass surface, which is composed of metal oxides/hydroxides (oxide corresponds to the position at dashed line 1, and hydroxide corresponds to the position of dashed line 2) 33 . On the contrary, O 1s spectra for the 3‐AT‐treated sample measured at different θ do not show the same property.…”

Section: Resultsmentioning

confidence: 95%

“…Figure 3 shows the HR ARXPS measurements, Figure 4 shows the XPS measurements after every GCIB sputtering cycle, and Figure 5 shows the corresponding depth profiles for the TRI-and 3-AT-treated samples. 33 The atomic concentrations in Figure 5 were normalized to 100.0%. The lowest spectra in Figure 4 that is bonded to three N atoms (position 3 is designated in Figure 3H).…”

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confidence: 99%

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The influence of the amino group in 3‐amino‐1,2,4‐triazole corrosion inhibitor on the interface properties for brass studied by ToF‐SIMS

Finšgar

2021

Rapid Comm Mass Spectrometry

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Rationale The detailed surface analysis of corrosion inhibitor surface layers by the application of 1,2,4‐triazole (TRI) and 3‐amino‐1,2,4‐triazole (3‐AT) compounds adsorbed from a 3 wt. % NaCl solution on the brass surface was performed by time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS). The results obtained were additionally supported by X‐ray photoelectron spectroscopy (XPS) measurements. Methods The description of the corrosion inhibitor surface layers was elaborated by using ToF‐SIMS and molecular‐specific signals. Characteristic molecular‐specific signals were used to perform 2D ToF‐SIMS imaging and cooling/heating experiment associated with ToF‐SIMS measurements. A detailed surface analysis using high‐resolution angle‐resolved XPS and gas cluster ion beam sputtering in combination with XPS measurements was also carried out. Results Organometallic complexes were formed after the corrosion process of brass with the release of Cu and Zn ions that subsequently connect with TRI or 3‐AT. Using ToF‐SIMS, possible spectral interferences of the organometallic species were considered due to the presence of different organometallic compounds composed of the two main Cu and Zn isotopes, that is, 63Cu and 65Cu and 64Zn and 66Zn. Using the molecular‐specific signals, 2D imaging was performed, which showed a different distribution of different species on the brass surface. In addition, a ToF‐SIMS experiment on thermal stability showed that most of the TRI‐ and 3‐AT‐related species desorb from the brass surface at 460 °C and 405 °C, respectively. Conclusions ToF‐SIMS analysis confirmed the formation of Cu/Zn‐ or Cu2‐inhibitor organometallic complexes, whereas the formation of Zn2‐inhibitor organometallic complexes on the brass surface was not confirmed. ToF‐SIMS imaging showed complete coverage of the brass surface with different Cu/Zn‐ or Cu2‐inhibitor organometallic complexes. The high thermal stability of the corrosion inhibitor surface layers was confirmed by ToF‐SIMS.

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Section: Resultsmentioning

confidence: 95%

mentioning

confidence: 99%

The influence of the amino group in 3‐amino‐1,2,4‐triazole corrosion inhibitor on the interface properties for brass studied by ToF‐SIMS

Finšgar

2021

Rapid Comm Mass Spectrometry

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“…Similar effects have been reported for the adhesion of unburnt fuel to the piston of a diesel engine made of an Al–Si–Cu alloy [ 36 ]. Consequently, the corrosion resistance of the surface of the casting is altered [ 16 , 18 , 19 , 20 , 21 , 36 ]. However, when the native aluminium oxide containing surface defects that can lead to water adsorption (or absorption) is not sufficient against further corrosion in strong environments, the addition of other passivating agents is recommended [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…There is a naturally formed oxide layer with a thickness of about several nanometres on the surface of an Al alloy [ 19 , 20 , 21 ]. This native oxide layer is highly defective and cannot provide effective protection from corrosion, especially when different types of heterogeneities are incorporated within it [ 16 , 19 , 20 , 21 , 22 ]. Therefore, the corrosion resistance of cast Al–Si alloys strongly depends on the surface condition, predominantly on the silicon content and the surface roughness [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

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Surface Stoichiometry and Roughness of a Degraded A380 Alloy after Casting, Technical Cleaning and Packaging

Petrovič

Mandrino

2021

Materials

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The surface stoichiometry of the degraded surface of a commercial Al–Si casting was investigated. The die-cast component was previously stored in a sealed plastic envelope. After that, surface stains in the form of white layers were observed. X-ray photoelectron spectroscopy (XPS) was used to study these layers. For comparison, a seemingly unaffected area as well as a freshly cut surface of the casting were also analysed. In order to additionally assess the surface condition, surface roughnesses were measured. Based on the binding energies (BEs) of the Al and O in the XPS spectra, and the stoichiometric results, it was concluded that the surface layers of the degraded and undegraded samples consist mostly of aluminium oxide and aluminium hydroxide. Furthermore, sodium phosphate from the leftover detergent and silicon oxide were detected in both analysed areas. Analyses of the Al KLL Auger transition were used to corroborate this. The relative shares of Al oxide vs. hydroxide based on the elemental concentrations were determined. The chemical compositions and chemical states of the elements in the top layers were thus obtained. The combination of surface-sensitive analytical techniques was found to be a suitable tool for the ex-post identification of the source of defects.

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Influence of Oxidation on Structure, Performance, and Application of Metallic Glasses

et al. 2022

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Owing to their unique structure and outstanding properties, metallic glasses are a novel class of structural and functional materials with vast application prospects. However, the metastable amorphous structures and chemical activity of metallic glass constituent elements lead to frequent oxidation during preparation, processing, and application. Comprehensively understanding the oxidation behaviors and underlying mechanisms of metallic glasses is essential for gaining knowledge of metallic glass structures and properties and for promoting engineering applications. Although many studies have examined these issues, more investigations are still required to explore potential industrial applications of metallic glasses. Here, recent research on metallic glass oxidation is consolidated by summarizing the oxidation influence on metallic glass structure, performance, and application and the possibilities and feasibility of oxidizing metallic glasses to reinforce materials or develop material systems are discussed.

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The native oxide film on a model aluminium-copper alloy studied by XPS and ToF-SIMS

Cited by 83 publications

References 51 publications

The influence of the amino group in 3‐amino‐1,2,4‐triazole corrosion inhibitor on the interface properties for brass studied by ToF‐SIMS

The influence of the amino group in 3‐amino‐1,2,4‐triazole corrosion inhibitor on the interface properties for brass studied by ToF‐SIMS

Surface Stoichiometry and Roughness of a Degraded A380 Alloy after Casting, Technical Cleaning and Packaging

Influence of Oxidation on Structure, Performance, and Application of Metallic Glasses

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