The Subsurface Nano Indentation Effects on Stainless Steel

Document Type : Original Article

Author

Dr. Eng. Consultant in Materials Sciences and Materials Applications Egypt.

Abstract

Abstract:
Stainless steel 316L has a lot of applications in buildings and architectures such as
envelopes and clad fixations. Some alloying elements were added to improve pitting
corrosion of stainless steel 316L In order to study of the effect of UV laser irradiation
on Stainless steel 316L, it was irradiated by 308 nm Excimer laser at different number
of pulses in the range from 2000 pulses to 50000 pulses. The nanoindentation
measurements were performed on the surface of both untreated AISI 316L stainless
steel and on laser irradiated samples in order to determine their hardness, stiffness and
elastic properties, the effect of alloying elements on the irradiation process of Austenitic
stainless steel was evaluated. The research emphasis that laser irradiation is a promising
technique for surface hardening of materials can not be heat treated by conventional
methods.