Surface Structures Formed on AISI 420 Stainless Steel by Pulsed Laser Irradiation

Abstract:

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The effects of TEA CO2 laser radiation on AISI 420 stainless steel and formed surface structures are studied. The laser energy density of 45.0 J/cm2 has modified the target surface. Qualitatively, the modifications of AISI 420 steel can be summarized as follows: change of color after action of one laser pulse; central zone of interaction in crater like form and periphery zone of interaction (for more than 10 laser pulses); appearance of grainy features and ablation rate of near 4 nm per laser pulse (action of 400 laser pulses); hydrodynamical effects like resolidified rim and droplets.

Info:

Periodical:

Edited by:

Dragan P. Uskokovic, Slobodan K. Milonjic, Djan I. Rakovic

Pages:

309-314

DOI:

10.4028/www.scientific.net/MSF.494.309

Citation:

B. Gaković et al., "Surface Structures Formed on AISI 420 Stainless Steel by Pulsed Laser Irradiation", Materials Science Forum, Vol. 494, pp. 309-314, 2005

Online since:

September 2005

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$35.00

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