Figure 3

Surface morphologies (a) and cross-sectional morphologies (b) of the bare samples after corrosion in NaCl + H2O + O2 at 600 ˚C for 20 h.

Surface morphologies (a) and cross-sectional morphologies (b) of the bare samples after corrosion in NaCl + H2O + O2 at 600 ˚C for 20 h.