This book explores non-standard processes in complex electrochemical systems, covering the structure and phase composition of modified alloys, saturation kinetics, and properties of surface layers. It also investigates the plasma electrolytic polishing of many alloys. The book presents the physicist with conditions of heating metals up to 1000 °C inside a solution, the chemist with reactions in vapour-gaseous media and on the surface of an electrode, and the metal scientist with the diffusion saturation of metals with nitrogen, carbon and boron. It will also appeal to engineers, university and college professors, and other researchers in related fields.