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

Figure 10

Schematic diagram for stress corrosion behavior under diverse stress: (a1–a3) stress corrosion under tensile stress: (a1) schematic process containing pitting and SCC and (a2, a3) dislocation pileups on tensile surface; (b1–b3) stress corrosion under compressive stress: (b1) schematic process containing pitting and SCC and (b2, b3) dislocation tangle on compressive surface.