Electrochemical investigation of chloride induced pitting of stainless steel under the influence of a magnetic field

A stochastic analysis of the effect of magnetic field on the pitting corrosion susceptibility of pure magnesium

“…And it's clear that F is always perpendicular to v. Thus, an external magnetic field has the ability to alter the rate of molecular transport of electrochemical species which is called the MHD phenomenon [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The MHD flow in electrochemical systems is conveniently described by the force per unit volume acting on the solution, F MHD (N/m 3 ),…”

“…On the other hand, general corrosion of copper was found to be suppressed by magnetic fields, while its localized corrosion was found to be accelerated [13]. Magnetic fields have been reported to reduce the corrosion susceptibility of aluminum [14] and 303 stainless steel [15], but the repassivation potential of stainless steel was decreased when a 0.27 T magnetic field was applied perpendicular to the surface [16].…”

Investigation of corrosion defects in titanium by positron annihilation

“…The so-called point defect model (PDM) of corrosion [9] describes the huge role of lattice defects in the process of transferring cations outside and anions into the metal. Linhardt and coworkers [10] demonstrated that as long as the metal is passive, the magnetic fi eld has no impact on the kinetics of corrosion pit formation in AISI 304 austenitic steel, but once the passive layer is broken or disappears, the magnetic fi eld infl uences the rate at which pits are formed. The passivating, protective oxide layer is a two-phase area with a strong electrical fi eld inside, in which cation vacancies of the metal move deeper into the metal, and oxide anion vacanciestoward the sample surface.…”

The Influence of a Magnetic Field on the Formation of Corrosion Defects in Selected Metals and Steels, Analysed Using Positron Annihilation Method

“…Kelly [11] found that an external magnetic eld accelerates corrosion processes in ferromagnetic iron and steel, but has no visible impact on corrosion in austenitic steel. Linhardt and co-workers [12] demonstrated that as long as the metal is passive, the magnetic eld has no impact on the kinetics of corrosion pit formation in AISI 304 austenitic steel. In publications [8,9], we have demonstrated that the changes in the intensity of the defect component of positron lifetime spectra for iron and S20 steel are clearly smaller if the samples were aged in an external magnetic eld before corroding.…”