NEW APPROACH TO INVESTIGATION OF MECHANOCHEMICAL EFFECTS IN METAL CORROSION PROCESSES UNDER TENSION
Journal Title: Молодий вчений - Year 2017, Vol 5, Issue 45
Abstract
It is proposed to describe some aspects of mechanochemical effect of deformation sign in corrosion phenomena under tension from synergetics and catastrophe theory positions. Steel plate located in an aggressive environment and subject to additional power influence is treated as a synergetic system. In this aspect, the symmetry distor-tion of curved plate sides is one of the first prerequisites for complex behavior and is accompanied by the emergence of new properties. In their turn, various symmetry distortions shall be taken into account by the structure of the standard model – catas-trophes. Canonical equations contain a member playing a role of the "symmetry dis-turber" or imperfection parameter that is represented geometrically by asymmetric bifurcation diagram. This evolution pattern corresponds to a disaster of «ruffle» type. Possible scenarios for the development of mechanochemical effects based on principles Maxwell and maximum retardation. The analysis of deformation allocation scheme of curved steel plate and weight loss curves of a sample for its concave and convex sides in hydrochloric acid solution at short times has demon-strated that the effect under discussion can be described by the model, which geome-try is subject to Maxwell principle. The structure of a model takes into account the fact that the dissolution rate is higher for concave side than for convex side. It was ascertained that if the deformation sign effect is interpreted as a sensitivity to imperfection, it is not contrary to the Mechanochemistry principles. To simulate the deformation sign effect conversion over time, the disaster of «ruffle» type was also used, but while respecting the principle of maximum retardation. It was shown that the qualitative features the studied systems condition the possibility to simulate overall pattern of the ongoing processes. This approach determines the optimization areas for various situations both of research and applied nature.
Authors and Affiliations
L. E. Trofimova
Keywords
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