Effect of Aging Treatment on Intergranular Corrosion Properties of Ultra-Low Iron 625 Alloy

Figure 7

SEM images of the cross-sections in the Alloy 625 after for (a) 0h, (b) 40h (c), (e) 200h, and (d),(f) 1000h after 120 h ferric sulfate-sulfuric acid corrosion test.

(a)

(b)

(c)

(d)