Specifities of Forming Electrochemical Dissolution Zones at FerriteCementite-Structured Alloys in Sulfuric Acid Solutions

N. V. Tarasova and S. N. Saltykov

Lipetsk State Technical University, Lipetsk, Russia

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Received January 13, 2006

Abstract —  Specific features of the formation of electrochemical dissolution zones at steels CT20 and CT45 with a ferrite–cementite structure, were revealed by combining electrochemical and metallographic methods. A possibility of developing the self-dissolution process at the ferrite/cementite boundary is shown. A spontane ous sequence of the anodic dissolution of structural constituents of the alloys is found.

PACS numbers: 81.05.Bx

DOI: 10.1134/S0033173207030046