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The Effect of Applied Stress on the Crevice Corrosion of P110 Steel in Simulated Oilfield Produced Water

The effect of applied stress on the crevice corrosion of P110 well pipe thread joint steel was investigated using electrochemical measurements and surface analysis technologies in simulated oil and gas field solutions. The results show obvious crevice corrosion on the surface of P110 steel after 12 h of immersion in a simulated solution with the coexistence of crevice stress. The applied stress made the corrosion potential of P110 steel shift in a more negative direction, which indicates that the crevice corrosion tendency of P110 steel increased due to the applied stress, and the corresponding corrosion rate was accelerated. This behavior may be ascribed to the stress destroying the compactness of corrosion products and reducing the barrier effect of corrosion products.