Mechanism Study of Stress Corrosion Behavior under Tensile and Compressive Stresses for Welded Joint Used in Nuclear Turbine Rotor

Figure 6

(a) Morphology of U-bend specimen after exposure in 3.5% NaCl solution; (b–d) pit on tensile surface: (b) SEM morphology for pit A, (c) SEM morphology for pit B, and (d) BSE morphology for pit B.

(a)

(b)

(c)

(d)