Ellipsometry in Corrosion Technology

Hayfield, P. C. S.

doi:10.1007/978-1-4615-8255-7_2

Cited by 7 publications

(6 citation statements)

References 89 publications

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“…The electrodeposition of Pt onto titanium is an established technology. 345 The coatings are smooth with low porosity, adhere well to the substrate, and have good stability and high oxygen overpotentials. While their stability under anodic conditions is good, there is also a finite loss rate that depends on the electrolyte.…”

Section: E Electrosynthetic Reactionsmentioning

confidence: 99%

Electrode materials for electrosynthesis

Couper¹,

Pletcher²,

Walsh³

1990

Chem. Rev.

253

174

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Section: E Electrosynthetic Reactionsmentioning

confidence: 99%

Electrode materials for electrosynthesis

Couper¹,

Pletcher²,

Walsh³

1990

Chem. Rev.

253

174

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“…After naturally keeping the specimen in the designated solution for 300 s, the potential was swept from −0.7 V to 1.0 V (vs. SCE) to obtain a full polarization curve from the cathodic to the anodic reactions in all the solutions. The polarization curve obtained the corrosion potential, and the Mansfeld fitting method [7,18] was applied to obtain the corrosion current density.…”

Section: Methodsmentioning

confidence: 99%

“…The cathodic current zone at the noble (passive) side, which corresponds to the excessive oxygen reduction [20], disappeared in a confirmed polarization in a deaerated solution. The corrosion current density was obtained by a Mansfeld fitting method [18], in which the Note that hereinafter the "free surface" means the surface of a specimen for immersion or polarization, which is free from sliding (see Figure 1a: left). The specimen was not connected to the frictional resistance tester in this case.…”

Section: Corrosion Behaviourmentioning

confidence: 99%

Tribocorrosion Behaviour of SUS430 Stainless Steel in Aqueous Solutions with Different pH

Wang,

Ohgata,

et al. 2023

Coatings

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To reveal the influence of passive film on the tribocorrosion behaviour of stainless steel, SUS430 was loaded at 2.0 N or 10.0 N in aqueous solutions with various pH from 1.0 to 10.0. The pure wear behaviour was investigated in the air for comparison. The polarization behaviour, the morphology of the worn or tribocorroded surface, and the depth profiles of the formed groove were measured to discuss the mechanism. The passive state was confirmed at pH = 7.0 and 10.0, but vanished at pH = 1.0 and 2.0. The pure wear in air depended on the applied loads, rather than the sliding time. On the other hand, the tribocorrosion in deionised water was much smaller than the pure wear in air. Under a load of 2.0 N, the tribocorrosion at pH = 1.0 was weaker than pH = 2.0. However, the situation reversed when increasing the load to 10.0 N. The tribocorrosion in neutral and alkaline solutions is considerably smaller than in acid solutions.

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“…From the automatically recorded P and A values tan and A values (where tan ~ is the ratio of the resultant reflected amplitude in the plane of incidence and normal to this plane and A is the change in phase on reflection) were calculated (10) for a wide range of film thicknesses on each substrate. Polar plots (11) of the vector Z ~-tan ~ exp (iA) were compared with polar plots derived from hypothetical values of the film thickness, d, and constant complex refractive indexes of the metal substrate and surface film Ins ----ns(1 --iks) and ~f ---nf(1 --ikD, respectively] together with the refractive index of the electrolyte nm (determined to 3 decimal places by Abbe refractometer). Experimental substrate constants ns and ks were determined by comparison of the experimental data with these theoretical polar plots and the assumption of a constant film refractive index (nr variation ~3%) and a zero absorption coefficient, kf in the experimental data for different thicknesses (6).…”

Section: Methodsmentioning

confidence: 99%