Erosion–Corrosion Behavior of 90/10 and 70/30 Copper–Nickel Tubes in 1 wt% NaCl Solution

The erosion–corrosion behavior of 90/10 and 70/30 copper–nickel tubes was investigated by in situ electrochemical tests on a self-built loop apparatus ex surface characterization. corrosion product film that formed at 1.5 m/s for the tube 0.5 showed best resistance. For tube, continuous existed below 3 mainly inhibited cathodic reaction. range 0.5–4.7 more similar to typical passive electrochemically, although it cracked 4–4.7 m/s. So, “critical flow velocity” between 4 m/s, beyond 4.7