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Registration Number

0212U002015, 0108U010836 , R & D reports

Title

Study of the interdependence of domain staucture and hysteresis loop characteristics with corrosion processes of ferromagnetic materials in constart magnetic field.

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Head

Gorobets,

Registration Date

12-01-2012

Organization

Institute of magnetism of NASU

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In current work was investigated the influence of domain structure of ferromagnetic objects and the external magnetic field on the characteristics of corrosion. Shown in these systems, the processes of corrosion are oscillatory. The dependence of the masses have become etched on the time of a quasi-periodic nature, which depends, configuration and flow of electrolyte from the geometry of the specimen. The dependences of the vibrational characteristics of the magnetic field intensity, electrolyte concentration, and temperature. Also studied the effect of pretreatment of samples, in particular, pre-annealing and the demagnetization of the domain structure on the vibrational characteristics, as well as the influence of the magnetic field orientation with respect to the preferred direction of the sample. Designed vibrating magnetometer and the influence of the characteristics of the hysteresis loop on the characteristics of corrosion. The main regularities of the oscillatory dependence of the mass of corroded metal elements under the influence of external magnetic field and established a new mechanism for the occurrence of oscillations on the surface of the metal-electrolyte interface in a magnetic field, which is associated with rearrangement of the domain structure of the samples in an external magnetic field and change the influence of magnetostatic stray fields on the concentration of the electrolyte the metal-electrolyte interface, respectively, and the creation of an inhomogeneous distribution of electric potential on the surface. The new methods of process control corrosion by means of an external constant magnetic field.

Product Description

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Іванов Б.О.
Бар'яхтар В.Г.
Било О.
Горобець О.Ю.
Горобець Ю.І.
Дереча Д.
Джежеря Ю.І.

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2020-04-02