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ANTI-CORROSION PROPERTIES OF NANOCOMPOSITE COATINGS IN AMINE ENVIRONMENTS
Abstract
The report presents the results of experiments on corrosion resistant in amine environments. One of the methods of protection against corrosion damage of materials was the thermal spraying of the company 'MetallSpray'. In order to evaluate the effectiveness of the protective properties of the 'MetallSpray' spraying, it has been decided to test for corrosion / erosion resistance with corrosion sputtering coupons. On the surface of the corrosion-proof coupon D888 with the MetallSpray spraying, made using the 2017 technology (position CC03006LP), there are no traces of corrosionerosion damage. On the side of the coupon, the damage increased to 11 mm. An initial stage of detachment of the coating on the surface from the side of the room is observed. The average thickness of the sputtering, color and roughness underwent changes. The corrosion rate on the standard coupon D174 (without sputtering) was 0.84 mm / year, which is 24 times higher than on the D888 coupon (with MetallSpray sputtering). It is established that the use of protective coatings leads to an increase in corrosion resistance 24-56 times, which indicates the expediency of their use in these operating conditions.
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