Fig. 2. Surface appearance of AISI 304 specimens treated by pulsed fiber laser with different energy densities (A = 0.00, B = 1.37, C = 1.71, D = 2.05, E = 2.39, F = 2.74, G = 3.08, H = 3.42, I = 4.79, and J = 6.16 kJ inch⁻²) as shown in Table 1 (scale bars are 5.0 mm).