Study of experimental and numerical simulation of laser ablation in stainless steel

摘要

In this paper, we present an experimental and theoretical study of pulse laser ablation of stainless steel target. Various parameters, such as laser power, pulse duration, enthalpy and heat capacity are used. The evaluation of which software will be suitable for the ablation processes has been done. The possibility to find micro-craters and nricrodefects was noted by using Reflection Optical Microscope (ROM), The ablation process induced by lasers is a collective phenomenon: that basically involves two phenomena: the laser radiation-with matter interaction and the dynamic of the ablation plume. A numerical solution is derived and stimulated for 2-D laser ablation process. Only the solid - liquid phase change is considered. This study contributes to a better understanding of the physical processes involved in the laser ablation targets.