Intergranular Corrosion of Low Cr Ferritic Stainless Steel 429 Evaluated by the Optimized Double Loop Electrochemical Potentiokinetic Reactivation Test

Figure 1

Effect of H₂SO₄ concentration in the DL-EPR test. (a) Influence on values ( mV/min and °C); (b)–(e) micrographs of FSS 429 aging at 550°C for 1 h after test, (b) 0.1 M H₂SO₄, (c) 0.5 M H₂SO₄, (d) 1.0 M H₂SO₄, and (e) 1.5 M H₂SO₄.

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