Formation, retention, and discharge of products of atmospheric corrosion of metals. 4. Model: Corrosion-discharge of products |
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| Authors: | Yu M Panchenko P V Strekalov and T V Nikulina |
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| Affiliation: | (1) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia;(2) Institute of Biology and Soil Sciences, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russia |
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| Abstract: | An empirical mathematical model K = K
0 + km
los (relating atmospheric corrosion to the weight loss of its products) for incubation + transient and steady-state stages of
the process, is considered. To develop the model, we used the results of long-term (from 3 month to 1–17 years) field tests
of metals according to the Russian, International ISOCORRAG, and Russia-Vietnam-Cuba programs. The K
0 and k factors in the model were determined according to the corrosion of Ct3, copper, brass, zinc, aluminum, Δ16 alloy, and AMц alloy in the zones of cold, moderate, subtropical, and tropical climates.
The model quantitatively relates the corrosion losses of a metal to those of the products discharged to the environment. It
may be useful when it is necessary to estimating the amount of detrimental metals, e.g., unprotected copper and zinc dispersed
to the environment, but there is no data on the weight of products that had been retained by the metal in the air.
Original Russian Text ? Yu.M. Panchenko, P.V. Strekalov, T.V. Nikulina, 2007, published in Zashchita Metallov, 2007, Vol.
43, No. 2, pp. 167–191. |
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