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Improvement of tribological properties of stainless steel by alloying its surface layer with rare earth elements using high intensity pulsed plasma beams |
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| Authors: | Bożena Sartowska Jerzy Piekoszewski Lech Waliś Jan Senatorski Marek Barlak Wojciech Starosta Cezary Pochrybniak Irena Pokorska |
| Affiliation: | 1. Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;2. The Andrzej Soltan Institute for Nuclear Studies, 05-400 Otwock/Swierk, Poland;3. Institute of Precision Mechanics, Duchnicka 3, 01-796 Warsaw, Poland;1. Department of Physics, University College of Engineering Nagercoil, Anna University, Nagercoil 629 004, India;2. Laboratory of X-ray Crystallography, Indian Institute of Chemical Technology, 500 007 Hyderabad, India;1. Faculty of Engineering of Bilbao, University of the Basque Country, Alameda de Urkijo s/n, 48013 Bilbao, Spain;2. Faculty of Technical Engineering of Bilbao, University of the Basque Country, Paseo Rafael Moreno “Pitxitxi” 3, 48013 Bilbao, Spain;1. Faculty of Engineering and Information Sciences, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia;2. Secondary Ion Mass Spectrometry Facility, Office of the Deputy Vice-Chancellor (R&D), Western Sydney University, Penrith, NSW 2751, Australia |
| Abstract: | Austenitic stainless steels are widely used in numerous industrial applications due to their excellent corrosion resistance. However some applications are limited in cases when due to low hardness and poor tribological properties of stainless steel wear is responsible for the durability of a given engineering component.In the present work we have undertaken an attempt to improve the wear resistance of AISI 316L steel by alloying its near surface region with rare earth elements—REE using high intensity pulsed plasma beams in so called deposition by pulse erosion (DPE) mode. Power density of pulses was 106–107 W/cm2 with the pulse duration in μs range. Heating and cooling processes were of non-equilibrium type. The near surface layer—thickness in μm range—was melted and simultaneously doped with cerium and lanthanum. Various parameters of the process were set up to get level of doping between 0.3 and 2.8 at.% REE.An improvement of tribological properties—linear wear and scratch resistance—with increasing REE concentration as compared to the initial material was observed. |
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