INTRODUCTION The mechanism of processes on the interphase boundary of the passivating oxide layer PL has a fundamental value, whereas, the properties of the passivating layer are determined by them.In this paper a consistent model of the boundary metal-oxide MO is presented. General stationary laws. On the interphase boundary of metal with PL, the continuous dissolutionof metal occurs.it disappears consecutively monolayer after a monolayer and the cells of oxide occupy its place. if at time t

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... he layer of metal M of thickness x disappears, then the plane MO displaces in its side with the speed v, equals ABSTRACT The model of processes on the interphase boundary metal-passivating layer is proposed. The balance of ions upon the formation of the cells of oxide is examined. The velocity expressions of these processes are obtained.