Corrosion behaviour of AISI 316L steel in artificial body fluids

• Autorzy: Kajzer W. , Krauze A. , Marciniak J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper presents the comparison of corrosion resistance of AISI 316L stainless steel in variouscorrosive media such as artificial urine, Tyrode's physiological solution and artificial plasma. Design/methodology/approach: The tests were carried out on samples of the following surfaces: grinded-average roughness Ra=0.31 μ m and electropolished and chemically passivated average roughness Ra=0.10 μ m. The corrosion tests were realized by recording of anodic polarization curves with the use of the potentiodynamic method. The VoltaLab ® PGP 201 system for electrochemical tests was applied. The tests were carried out in electrolyte simulating urine (pH=6-6.4), Tyrode's physiological solution (pH=6.8-7.4) and plasma (pH=7.2-7.6) at the temperature of 37± 1° C. Findings: Surface condition of AISI 316L stainless steel determines its corrosion resistance. The highestvalues of breakdown potentials were recorded for all electropolished and chemically passivated samples in allsimulated body fluids. The highest values of anodic current density were recorded for samples tested in artificialurine, the lowest values were recorded for samples tested in Tyrode's physiological solution. Research limitations/implications: The obtained results are the basis for the optimization of physicochemical properties of the AISI 316L stainless steel. Practical implications: On the basis of the obtained results it can be stated that stainless steel meets the basic biocompatibility criteria and can be applied in reconstruction surgery, operative cardiology and urology. Originality/value: The paper presents the influence of various corrosive media simulating human body fluids on corrosion resistance of AISI 316L stainless steel.

Słowa kluczowe

EN

metallic alloys; biomaterials; corrosion; body fluids

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 2
• Strony: 247--253
• Opis fizyczny: Bibliogr. 25 poz., wykr.

Twórcy

autor

Kajzer W.

autor

Krauze A.

autor

Marciniak J.

• Division of Biomedical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

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