Physicochemical properties of passive layer on the surface of guide wire used in endourologyReport as inadecuate




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Metallurgy, Vol.50 No.3 July 2011. -

The main criterion for austenitic steel X2CrNiMo 17-12-2 suitability for guide wire in endourology is its biotolerance. It is most of all connected with physical and chemical properties of wire surface, which should be adjusted to the characteristics of the environment of human urinary system tissues. Suitability of the proposed passive layer for purification of wire surface was determined to a great extent by its chemical composition. Therefore, this study included chemical composition tests by means of X-ray Photoelectron Spectroscopy XPS, during which atomic concentration of elements in tested passive layers was identified and determined. Resistance to pitting corrosion was evaluated on the ground registered anodic polarisation curves by means of potentiodynamic method.

X2CrNiMo 17-12-2 steel; passive layer; artificial urine; corrosion resistance; XPS



Author: W. Walke - ; Faculty Of Mechanical Engineering, The Silesian University of Technology, Gliwice, Poland J. Przondziono - ; Faculty

Source: http://hrcak.srce.hr/



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