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

Figure 3

Effect of solution temperature in the DL-EPR test. (a) Influence on values (0.5 M H₂SO₄ + 0.0001 M KSCN,  mV/min); (b)–(d) micrographs of FSS 429 aging at 550°C for 15 min after test, (b) 20°C, (c) 30°C, and (d) 40°C.

(a)

(b)

(c)

(d)