Figure 5.
Higher magnification SEM micrographs using BEI for specimens loaded to 5·105 cycles showing (a) a crack that propagated from the notch (Fig. 4c) and (b) diffuse staining of damage ahead of the notch (Fig. 4b, location 3). Note the presence of BaSO4 crystals within the crack, staining of canuliculi, and characteristic wavy lines for diffuse damage.