Simultaneous Phosphatizing of Steel, Galvanized Steel, and Aluminum

D. V. Mazurova^a, N. S. Grigoryan^a, E. F. Akimova^b, A. A. Abrashov^a,  T. A. Vagramyan^a, and V. I. Kharlamov^a

^a Mendeleev University of Chemical Technology, Miusskaya pl. 9, Moscow, 125190 Russia

^b Scientific Research Institute of Paint Coatings with Pilot Victoria Machine-Building Plant,
Khot’kovo, Moscow Region, Russia

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Received November 17, 2008

Abstract — A phosphatizing solution is developed for the joint treatment of steel, galvanized steel, and aluminum that allows one to obtain adhesion crystalline phosphate layers (with masses of 2.5–2.8 g/m²) that are suitable for further cataphoretic staining at a temperature of 45–55°C.

Removal of Hydrocarbon Films from the Surface of Metal Materials in Air Glow Discharge

A. E. Gorodetskii, V. L. Bukhovets, R. Kh. Zalavutdinov, and A. P. Zakharov

Frumkin Institute for Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

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Received March 27, 2008

Abstract — Selective oxidation of amorphous hydrocarbon (a-C:H) films deposited on tungsten, molybdenum, and stainless steel by chemically active oxygen (with a source of glow discharge in air) has been studied. Film oxidation was carried out both directly in the discharge and in the area of afterglow. It has been shown that plasmolysis products of a-C:H films in air are CO, CO₂, H₂O, and H₂. The rate of film oxidation depended on the position in relation to plasma and decreased in the hollow cathode–positive column–afterglow series. The coefficients of carbon erosion in afterglow increased from 10^–3 to 10^–2 at. C/at. O at a temperature increase from room temperature to 130°C.

Biological Corrosion of Construction Materials at Nuclear Power Engineering Enterprises

G. V. Zhdanova^a and Yu. L. Kovalchuk^b

^a Institute of Nuclear Energy and Industry, Moscow, Russia

^b Severtsov Institute of Ecological and Evolutionary Problems, Russian Academy of Sciences, Moscow, Russia

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Received on September 08, 2008.

Abstract — The research data concerning the biological corrosion of construction materials for nuclear power plants (NPPs) are submitted in this article. The corrosion kinetic features of 08Kh18N10T and 20 steels in industrial neutral electrolyte are analyzed before and after the above steel types are contaminated with microorganisms. The effects of microorganisms and the products of their metabolism on the corrosion of biocide component-protected steels are evaluated.

Cyclic Voltammetry as a Method for Simulating the Operation of a MetalPolymer Coating System

A. M. Lyakhovich^a, A. V. Syugaev^a, N. V. Lyalina^a, and S. M. Reshetnikov^b

^a Physicotechnical Institute, Ural Branch, Russian Academy of Sciences, Izhevsk, Russia

^b Udmurt State University, Izhevsk, Russia

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Received March 22, 2008