Formation, Retention, and Discharge of Products of Atmospheric
Corrosion of Metals. 4. Model: Corrosion–Discharge of Products
Panchenko Yu.M., Strekalov P.V., Nikulina T.V.
В журналеProtection of Metals and Physical Chemistry of Surfaces
Год: 2007 Том: 43 Номер: 2 Страницы: 155-178
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
eU3
, copper, brass, zinc, aluminum,
N16
alloy, and
Aa?
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.