biomaterial studies on aisi 316l stainless steel after magnetoelectropolishing生物材料研究magnetoelectropolishing后aisi 316 l不锈钢的.pdfVIP

Materials 2009, 2, 129-145; doi:10.3390/ma2010129 OPEN ACCESS materials ISSN 1996-1944 /journal/materials Article Biomaterial Studies on AISI 316L Stainless Steel after Magnetoelectropolishing Tadeusz Hryniewicz 1,*, Krzysztof Rokosz 1 and Massimiliano Filippi 2 1 Koszalin University of Technology, Division of Surface Electrochemistry, Raclawicka 15-17, PL 75-620 Koszalin, Poland; E-Mail: Krzysztof.Rokosz@tu.koszalin.pl 2 Plasma and Advanced Materials, Fondazione Bruno Kessler – irst, I-38050 Povo (Trento), Italy  Author to whom correspondence should be addressed; E-Mail: Tadeusz.Hryniewicz@tu.koszalin.pl; Tel. +48 94 3478244; Fax: +48 94 3426753 Received: 2 February 2009; in revised form: 3 March 2009 / Accepted: 10 March 2009 / Published: 11 March 2009 Abstract: The polarisation characteristics of the electropolishing process in a magnetic field (MEP – magnetoelectropolishing), in comparison with those obtained under standard/conventional process (EP) conditions, have been obtained. The occurrence of an EP plateau has been observed in view of the optimization of MEP process. Up-to-date stainless steel surface studies always indicated some amount of free-metal atoms apart from the detected oxides and hydroxides. Such a morphology of the surface film usually affects the thermodynamic stability and corrosion resistance of surface oxide layer and is one of the most important features of stainless steels. With this new MEP