Fig. 6

XPS spectra obtained from surface oxides of 20wt.% Cr ODS FeCrAl alloy exposed to LBE (i.e. including surface coated LBE): (a1-a6) XPS for 20 h; (b1-b6) XPS for 40 h; (c1-c6) XPS for 100 h. (The original data are shown in light grey lines, the fitting results are displayed in blue lines or green lines, the Fitting superimposed data are shown in red dotted lines, and the background is shown in black lines).