Fig.2-10 A cross-sectional image obtained by TEM (a) and a schematic illustration (b) near a crack tip for a 7-kN loaded CT specimen (<i>K</i> = 30 MPa(m)<sup>1/2</sup>) immersed in a simulated BWR coolant condition for 224 hours

2-10

Fig.2-10 A cross-sectional image obtained by TEM (a) and a schematic illustration (b) near a crack tip for a 7-kN loaded CT specimen (K = 30 MPa(m)^1/2) immersed in a simulated BWR coolant condition for 224 hours

An oxide inner layer was observed around the crack tip, where the strain and tensile stress were concentrated.

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