Original scientific paper

Electrochemical characterisation of X10CrNi 18-8 steel in artificial plasma

J. Przondziono ; Faculty of Materials Science and Metallurgy, Silesian University of Technology, Katowice, Poland
W. Walke ; Faculty of Biomedical Engineering, Silesian University of Technology, Zabrze, Poland

Abstract

Quality of applied guide wires conditions the course of treatment and its success to a great extent. In order to simulate conditions that can be found in blood vascular system samples were exposed to artificial blood plasma (T = 37 } 1 oC) for the time of 8 h. In order to obtain information regarding physical and chemical properties of modified surface of wire made of X10CrNi 18-8 steel, electrochemical impedance spectroscopy (EIS) test and tests of chemical composition of the surface layer X-ray photoelectron spectroscopy (XPS) were made. On the ground of performed EIS and XPS tests, favourable impact of steam sterilisation process on corrosion resistance of X10CrNi 18-8 steel was observed only for the case when chemical passivation was applied prior to sterilisation.

Keywords

wires for invasive cardiology; X10CrNi 18-8 steel; steam sterilization; EIS; XPS

Hrčak ID:

126675

URI

https://hrcak.srce.hr/126675

Publication date:

1.1.2015.

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