Surface modification and corrosion behavior of Ni-Ti alloy used for urological implants

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

Abstrakty

EN

Purpose: The work presents the influence of the surface treatment of Ni-Ti alloy, intended for implants applied in urogenital surgery, on their corrosion resistance. The tests were carried out in the simulated urine. In particular, the pitting and crevice corrosion resistance tests were carried out. Design/methodology/approach: 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 =5,6 ÷ 6,4) at the temperature of 37 ± 1°C. The tests were carried out on samples of the following surfaces: grinded-average roughness Ra=0,16 µm and electropolished and chemically passivated average roughness Ra=0,10 µm. Findings: Surface condition of Ni-Ti alloys determines its corrosion resistance. Research limitations/implications: The obtained results are the basis for the optimization of physicochemical properties of the Ni-Ti alloy. Practical implications: On the basis of the obtained results it can be stated that Ni-Ti alloy can be applied in urology. Originality/value: The paper presents the influence of the surface treatment on corrosion resistance of Ni-Ti alloy.

Słowa kluczowe

EN

metallic alloys; biomaterials; corrosion

PL

stop metaliczny; biomateriały; korozja

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2007
• Tom: Vol. 28, nr 9
• Strony: 525--532
• Opis fizyczny: Bibliogr. 21 poz., il., wykr.

Twórcy

autor

Kajzer W.

autor

Kaczmarek M.

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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