Pickling Behavior of Water Quenched High Strength Steel Plates and Effect Evaluation of Corrosion Inhibitors

The oxide scale of water quenched high strength steel plates is extremely thin and inhomogeneous,thus a proper pickling process and corrosion inhibitor must be used to prevent the over-pickling and to decrease the loss of steel substrate.The effects of temperature,hydrochloric acid concentration and Fe2+ concentration on the pickling behavior of water quenched high strength steel plates were investigated by orthogonal tests,and the efficiency of two kinds of corrosion inhibitor A and B was evaluated.The results showed that temperature had the most obvious effect on the pickling rate,and the inhibitor A had a better effect to prevent the corrosion of substrate.