Gaponov A.M.

Influence of External Magnetic Field on the Etching of a Steel Ball in an Aqueous Solution of Nitric Acid

This paper reveals the effect of the change of a steel ball shape as a result of its etching in an aqueous solution of nitric acid under the influence of an external magnetic field. The elongation of a ferromagnetic ball was observed along the direction of an external magnetic field. The steel ball etching in a magnetic field is characterized by formation of three cylindrically symmetric regions with different etching rates and surface structures, divided from each other by clear borders, namely, the pole, equator and transition regions.