Corrosion resistance of zinc–aluminum and zinc–aluminum–magnesium coatings in various regions of the world
Abstract
A review of literature data obtained as a result of long-term testing of zinc, zinc–aluminum and zinc–aluminum–magnesium coatings on carbon steel in a number of countries (Spain, Portugal, France, Germany, former Czechoslovakia, Austria, Sweden, the Netherlands, USA, China, Japan, Mexico, Brazil, Thailand, Singapore, United Arab Emirates). Corrosion data for coatings are grouped by test depending on the corrosivity category of the atmosphere (according to standard ISO 9223) and its type (rural, urban/industrial, marine, marine/urban). It is shown that corrosion resistance of alloy coatings is higher than that of zinc coatings. In an atmosphere of low corrosiveness, passivation of the coating surface has an additional positive effect. Possible intervals of the steady–state corrosion rate of coatings for each category depending on the type of atmosphere are presented, which make it possible to estimate the service life of coatings as a first approximation. A critical assessment of the technique of conducting field tests of zinc–based coatings is given.
About the Authors
Yu. M. Panchenko
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
A. I. Marshakov
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
L. A. Nikolaeva
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
T. A. Nenasheva
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
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Review
For citations:
Panchenko Yu.M., Marshakov A.I., Nikolaeva L.A., Nenasheva T.A. Corrosion resistance of zinc–aluminum and zinc–aluminum–magnesium coatings in various regions of the world. Title in english. 2023;(1):21-55. (In Russ.)
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