Abstract
This work presents a study of the wear of borided and non-borided 316L stainless steel surfaces produced by the cavitation and thermal effects caused by the laser induced dielectric breakdown using bi-distilled water as the dielectric medium. A pulsed beam of a high-power laser was focused at a different distance between the surfaces and the focus spot in a parallel configuration. The wear produced on the non-borided surface presented the combination of both cavitation and thermal effects that decreased with the increase of the surface-focus spot distance. On the other hand, the borided surfaces showed a higher thermal resistance due to that worn areas presented just the erosion of the material by the cavitation process, as revealed by the microstructure of the boride surfaces.
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