caa a22 4500 445858419 CHVBK 20180317145435.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10946-011-9247-6 doi (NATIONALLICENCE)springer-10.1007/s10946-011-9247-6 Influence of picosecond laser pulses on the microstructure of austenitic materials [Elektronische Daten] [S. Petronic, A. Milosavljevic, D. Milovanovic, M. Momcilovic, Z. Radovanovic] We investigate samples of austenitic materials - stainless steel and iron-based superalloy - which are widely used at high temperatures and pressures. The samples were exposed to Nd3+:YAG laser pulses with a wavelength of 1064nm and a pulse duration of 170ps. We employ different pulse energies and number of pulses. The spots appearing after the laser irradiation were examined by optical and scanning electron microscopy and analyzed by energy-dispersive spectroscopy. We also perform Vickers microhardness tests. We discuss the microstructure changes caused by different energy and number of pulses in air and in a He-enriched atmosphere with the aim to determine optimum laser parameters in surface-treatment technology. Springer Science+Business Media, Inc., 2011 austenitic stainless steel nationallicence iron-based superalloy nationallicence laser surface treatment nationallicence microstructure nationallicence microhardness nationallicence Petronic S. Innovation Center, Faculty of Mechanical Engineering, University of Belgrade, 11120, Belgrade, Serbia aut Milosavljevic A. Faculty of Mechanical Engineering, University of Belgrade, 11120, Belgrade, Serbia aut Milovanovic D. VINČA Institute of Nuclear Sciences, University of Belgrade, 11001, Belgrade, Serbia aut Momcilovic M. VINČA Institute of Nuclear Sciences, University of Belgrade, 11001, Belgrade, Serbia aut Radovanovic Z. Faculty of Technology and Metallurgy, University of Belgrade, 11120, Belgrade, Serbia aut Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/6(2011-11-01), 564-571 1071-2836 32:6<564 2011 32 10946 https://doi.org/10.1007/s10946-011-9247-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10946-011-9247-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Petronic S. Innovation Center, Faculty of Mechanical Engineering, University of Belgrade, 11120, Belgrade, Serbia aut NATIONALLICENCE 700 1- Milosavljevic A. Faculty of Mechanical Engineering, University of Belgrade, 11120, Belgrade, Serbia aut NATIONALLICENCE 700 1- Milovanovic D. VINČA Institute of Nuclear Sciences, University of Belgrade, 11001, Belgrade, Serbia aut NATIONALLICENCE 700 1- Momcilovic M. VINČA Institute of Nuclear Sciences, University of Belgrade, 11001, Belgrade, Serbia aut NATIONALLICENCE 700 1- Radovanovic Z. Faculty of Technology and Metallurgy, University of Belgrade, 11120, Belgrade, Serbia aut NATIONALLICENCE 773 0- Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/6(2011-11-01), 564-571 1071-2836 32:6<564 2011 32 10946 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer