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dc.contributor.authorLópez, Juan Luis
dc.contributor.authorVeleva, L.
dc.date.accessioned2022-08-18T20:20:51Z
dc.date.available2022-08-18T20:20:51Z
dc.date.issued2022
dc.identifier.urihttp://repositorio.ucm.cl/handle/ucm/3987
dc.description.abstractTwo-dimensional detrended fluctuation (2D-DFA) analysis has been carried out to correlate the Hurst index surface with corresponding irregularities of the cooper surface, because of the localised corrosion attacks after exposure in substitute ocean water for a period of three months. The 2D-DFA was applied on SEM images, in order to calculate the Hurst index surface and analyse the fractal properties of the copper surface. The Hurst index was linked with the fractal dimension . The results showed the existence of two surface range scales -sizes, where the fluctuation function for copper corroded surface exhibits power law behaviour, which is compatible with fractal properties. The calculated values of Hurst index surface are compatible with persistent processes of corrosion attacks. The results suggest that the surface morphology of the formed layer changes because of the metal grain transition from more ordered arrangement to a highly random (disordered) grain array.es_CL
dc.language.isoenes_CL
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
dc.sourcePhysica A: Statistical Mechanics and its Applications, 586, 126490es_CL
dc.subjectFractal analysises_CL
dc.subject2D-DFAes_CL
dc.subjectHurst exponentes_CL
dc.subjectCopper surfacees_CL
dc.subjectGrain transitiones_CL
dc.subjectSeawateres_CL
dc.title2D-DFA as a tool for non-destructive characterisation of copper surface exposed to substitute ocean wateres_CL
dc.typeArticlees_CL
dc.ucm.facultadFacultad de Ciencias de la Ingenieríaes_CL
dc.ucm.indexacionScopuses_CL
dc.ucm.indexacionIsies_CL
dc.ucm.uriwww.sciencedirect.com/science/article/pii/S0378437121007639es_CL
dc.ucm.doidoi.org/10.1016/j.physa.2021.126490es_CL


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Atribución-NoComercial-SinDerivadas 3.0 Chile
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 Chile