Field and accelerated tests of contact and volatile inhibitors of atmospheric corrosion with various metals

The results of two-year field (in rural, urban, and marine atmospheres) and accelerated tests of contact and volatile inhibitors with steel, brass, an d aluminum and magnesium alloys are reported. The protective values of cont act inhibitors (IPKhAN-29a and IPKhAN-50) were found to decrease by 30 to 6 0% in all,of the aforementioned atmospheres in already one year of the test s. In sealed polyethylene bags, metals and alloys retained high corrosion r esistance both without and with volatile inhibitors, regardless of the inhi bitor's nature (IPKhAN-110 and DAN). The protective value of contact inhibi tors only slightly depends on the atmospheric corrosivity, though the latte r increased from rural to marine according to the ratio 1 : 1.4 : 5.7. For the inhibited systems, the results of the field and accelerated tests were shown to correlate.