Abstract
Abstract The synergism between erosion and corrosion of stainless steels (SS) in 3.5 wt% sodium chloride (NaCl) + 0.5 N sulfuric acid (H2SO4) + 30 wt% aluminum oxide (Al2O3) dual-phase fluid has been studied by means of a rotating cylinder electrode apparatus. The erosion/erosion-corrosion behavior of several SS, 1Cr13 (ferritic), Type 316L (austenitic [UNS S31603]), 0Cr14Ni5Mo (martensitic), and CD-4MCu (α+γ duplex), were investigated further to illustrate the synergistic mechanism. The experimental results showed that CD-4MCu had a higher erosion-corrosion resistance because of its excellent deformation strengthening capability. By measuring and calculating each component of the synergistic interaction, it could be concluded that the removal of material mainly came from the mechanical damage in the condition of this study. Based on the classification of erosion-corrosion regimes with respect to the ratio of erosion to corrosion rate, the synergistic mechanism of erosion-corrosion of SS in the condition ...
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