Study of factors enabling initiation and behavior of grooving corrosion

Popov, Gregory G.; Kasyanov, A.V.; Bolobov, V. I.; Krivokrysenko, E. A.

doi:10.1051/e3sconf/201912103004

Cited by 5 publications

(3 citation statements)

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“…Inorganic salt precipitation is one of the main problems in oilfield operations and many fac tors can affect scale and fouling formation and their inhibition (Khormali et al 2018). The availability of abrasive sand particles in the flowing crude oil inside the coiled pipes of the tubular furnaces is considered to be a factor that contribute to the emergence of grooving cor rosion (Popov et al 2019). To prevent the destruction processes and premature failures for reliable operation of oil and coiled-pipes, tanks and oil and/gas pipelines caused by metal cor rosion some solutions are needed ).…”

Section: Corrosion Experimentsmentioning

confidence: 99%

Advances in Raw Material Industries for Sustainable Development Goals

Litvinenko¹

2020

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Section: Corrosion Experimentsmentioning

confidence: 99%

Advances in Raw Material Industries for Sustainable Development Goals

Litvinenko¹

2020

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“…Nevertheless, as calculations show, for example, in the case of trunk pipelines [1], the magnitude of such residual stresses σres may approach the yield strength of the used metal. In some cases, for example, during the operation of field pipelines pumping corrosive water-oil emulsions, the presence of residual stresses can contribute to intensification of corrosion rate of the metal structures, which leads to their destruction [2][3][4]. In this regard, the development of methods for fixing the value of residual stresses experimentally is of considerable scientific and practical interest.…”

Section: Introductionmentioning

confidence: 99%

Use of Magnetic Anisotropy Method for Assessing Residual Stresses in Metal Structures

Krivokrysenko

Popov

Bolobov

et al. 2020

KEM

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A series of experiments on measuring of difference between the main mechanical stresses (DPMS) was carried out using a mechanical stress scanner based on the magnetoanisotropic method. The magnitude of the DPMS is fixed when a magnetic field is induced on a carbon steel plate under uniaxial tension. A direct proportional relationship is shown between the magnitude of the DPMS signal recorded by the scanner and the magnitude of tensile stresses in the plate in the region of elastic deformation of steel. Measurement of the DPMS signal in the central part of similar plates previously subjected to elastic-plastic bending showed that positive values of the signal are fixed in the surface layers of the metal on the inside of the plate, which corresponds to tensile residual stresses, while the negative ones concentrate at the external surface, which corresponds to compressive stresses. A transverse incision on a curved plate from the inside leads to a decrease in the value of the signal of the DPMS, which indicates a decrease in the level of residual stresses in the metal. The values of the DPMS signal in the central part of the curved plate, recalculated using the established calibration dependence on the value of the residual stresses, were compared with the values of the stresses established by calculation, based on the Henki’s theorem on the unloading of an elastic-plastic body. A satisfactory convergence was obtained between the experimental and calculated data.

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“…The film thickness is affected by alloy composition, relief and surface contamination [4][5][6]. Table 1 contains film thicknesses with appropriate color.…”

Section: Introductionmentioning

confidence: 99%

The Formation of Contrasting Nanofilms on a Metal Surface for Bar Coding

Konchus

Sivenkov

2020

KEM

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Laser marking is a universal method of applying information to the products surface. Colored oxide films form on metal surface during a thermal exposure. The degree of steel heating influences the film thickness. Corrosion-resistant steel AISI 304 samples were laser-marked with a MiniMarker 2-20A4 precision laser complex. The contrast of the barcodes on a metal area depends on the surface roughness and the chemical composition of the steel. Fe2O3, Fe3O4 oxides forms the greatest contrast. RGB indicators are used to assess contrast. Study results may be applicable to increase the QR code contrast thereby contributing to the improvement of laser marking technology while preserving economic efficiency.

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Study of factors enabling initiation and behavior of grooving corrosion

Cited by 5 publications

References 0 publications

Advances in Raw Material Industries for Sustainable Development Goals

Advances in Raw Material Industries for Sustainable Development Goals

Use of Magnetic Anisotropy Method for Assessing Residual Stresses in Metal Structures

The Formation of Contrasting Nanofilms on a Metal Surface for Bar Coding

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