Fig. 3: Morphology, wettability and crystalline phase of LH304 stainless steel surfaces.
From: Significant reduction of corrosion of stainless steel by strong-field laser surface passivation
a Surface images obtained by helium-ion microscope (HIM) with different magnifications; b Side-view SEM images; c 3D patterns of the stainless-steel samples before and after laser filament processing; d CA and RA results; e Images of (ei) the LH304 sample prepared by FIB, (eii) dark-field TEM, and (eiii) HRTEM (Inset: fast Fourier transform (FFT) pattern). f EDS of O, Ni, Fe and Cr elements
