Modeling of the surface treatment of passive metals
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On the basis of analysis of the specific features of physicochemical reactions leading to the local destruction of the surface of passive metals, we conclude that it is impossible to construct an adequate kinetic model of its evolution. For modeling the processes of formation of the surface of metals inclined to passivation, we propose to use the formalization of discrete states with subsequent analysis of the dynamics of these processes. We have constructed a simulation model of the transformation of the morphology of an electrochemically active surface under the action of polarization by pulse current and proposed a scheme of the corresponding technological process and a quantitative criterion for the completion of treatment.
KeywordsAnodic Polarization Oriented Graph Service Life Prediction Local Dissolution Passive Metal
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- 1.M. V. Ved’, V. V. Shtefan, N. D. Sakhnenko, and A. G. Grzhimalo, “Strategy of the electrochemical synthesis of organic conductors,” in: Bulletin of the National Technical University “Kharkivs’kyi Politekhnichnyi Instytut” [in Russian], No. 27 (2005), pp. 167–170.Google Scholar
- 2.A. G. Atanasyants, B. P. Saushkin, and A. V. Maslov, “Problems of the electrochemical treatment of metals in nontraditional electrolytes,” Gal’vanotekh. Obrab. Poverkhn., 1, No. 3–4, 67–73 (1992).Google Scholar
- 3.M. V. Ved’, M. D. Sakhnenko, O. V. Bohoyavlens’ka, and T. O. Nenastina, “Electrochemical forming treatment of the surface of corrosion-resistant alloys,” Vopr. Khim. Khim. Tekhnol., No. 3, 117–125 (2006).Google Scholar
- 4.Yu. I. Kuznetsov and N. N. Andreev, “On the role of the reaction center of aromatic compounds in the course of inhibition of the local dissolution of iron,” Zashch. Met., 28, No. 1, 96–101 (1992).Google Scholar
- 5.L. I. Freiman, “Stability and kinetics of the development of pittings,” in: VINITI Series in Corrosion and Rust Protection [in Russian], VINITI, Moscow (1985), pp. 3–71.Google Scholar
- 6.A. M. Sukhotin, Physical Chemistry of Passivating Films on Iron [in Russian], Khimiya, Leningrad (1989).Google Scholar
- 8.A. L. Rotinyan, K. I. Tikhonov, and I. A. Shoshina, Theoretical Electrochemistry [in Russian], Khimiya, Leningrad (1981).Google Scholar
- 10.M. D. Sakhnenko, “Application of the systems approach to determining the protective action of anticorrosive coats,” Ukr. Khim. Zh., 63, No. 6, 101–109 (1997).Google Scholar
- 11.N. A. J. Hastings and J. B. Peacock, Statistical Distributions: A Handbook for Students and Practitioners, Butterworths, London (1975).Google Scholar