Evaluation of the Synergistic Effect of Erosion-Corrosion on AISI 4330 Steel in Saline-Sand Multiphase Flow by Electrochemical and Gravimetric Techniques

Figure 9

SEM images of AISI 4330 steel electrode after tests in a solution containing 3 wt.% NaCl and 10 wt.% sand (a) 2800 rpm, pH 7, 105 µm and (b) 1800 rpm, pH 3, 53 µm, magnification 500x.

(a)

(b)