Fig. 9

The distribution of the KAS values of the samples with different energy densities: (a) untreated, (b) 3.5 J/cm2, (c) 17.5 J/cm2, (d) 70 J/cm2.

The distribution of the KAS values of the samples with different energy densities: (a) untreated, (b) 3.5 J/cm2, (c) 17.5 J/cm2, (d) 70 J/cm2.