Pickling Behaviour of 2205 Duplex Stainless Steel Hot-Rolled Strips in Sulfuric Acid Electrolytes

Figure 11

SEM surface images after static (a–c)) and dynamic (d–f)) pickling in 300 g L⁻¹ H₂SO₄ solutions at 75°C with current density 0.04 A cm⁻² (a and d), 0.12 A cm⁻² (b and e), and 0.2 A cm⁻² (c and f).

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(b)

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