Formation, Retention, and Discharge of Products of Atmospheric Corrosion of Metals. 4. Model: CorrosionDischarge of Products

Yu. M. Panchenko^a, P. V. Strekalov^a, and T. V. Nikulina^b

^a Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 119991 Russia
e-mail: Этот e-mail защищен от спам-ботов. Для его просмотра в вашем браузере должна быть включена поддержка Java-script

^b Institute of Biology and Soil Sciences, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159,
Vladivostok, 690022 Russia

Received November 10, 2005

Abstract - An empirical mathematical model K = K₀ + 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 K₀ and k factors in the model were determined according to the corrosion of 3, copper, brass, zinc, aluminum, 16 alloy, and 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.

PACS numbers: 82.45.Bb