Study of Morphology and Corrosion Behavior of Aluminum Coatings on Steel Substrates under Simulated Acid Rain Conditions

In this paper, aluminum coatings were prepared on a steel substrate by thermal spraying, and the corrosion morphology resistance of coating investigated salt spray immersion tests. The results showed that after three months tests, still exhibited surface without significant damage had good tolerance. Further effective protection can be achieved spraying with paint. After test, rate samples thicker was located between 0.002 mm/y 0.005 mm/y, only small amount products observed surface. coated tests maintained sufficient adhesion (17.07 MPa 19.25 MPa), highly reliable for substrate. general, reliability further improved painting Al coating. This provides more ideas transmission transformation equipment.