Abstract
This study was performed to understand the wetting behavior of metal by surface modification technologies. A Nd:YVO4 nanosecond laser was used to modify the surface of 316L stainless steel disks in a grid pattern, which could be observed by scanning electron microscopy (SEM), and their wettability was evaluated. The results indicated that by using laser irradiation, the surface of 316L stainless steel exhibited not only structural surface modification, with a change in the texture of the surface, but also chemical surface modification with changes in chemical composition of the surface. The proposed method can control wettability by adjusting the laser irradiation conditions.
