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THE EFFECT OF PLASMA OXIDATION AND NITRIDATION ON CORROSION BEHAVIOR OF CoCrMo ALLOY IN SBF SOLUTION

Author

Listed:
  • M. ASLAN

    (Department of Mechanical Engineering, Faculty of Engineering, Ataturk University, Erzurum, Turkey)

  • O. ÇOMAKLI

    (Department of Mechanical Engineering, Faculty of Engineering, Ataturk University, Erzurum, Turkey)

  • M. YAZICI

    (#x2020;High Technology Research Central, Erzurum Technical University, Erzurum, Turkey)

  • A. F. YETIM

    (#x2021;Department of Mechanical Engineering, Faculty of Engineering and Architecture, Erzurum Technical University, Erzurum, Turkey)

  • Ö. BAYRAK

    (#xA7;Department of Mechanical Engineering, Faculty of Engineering, Erzincan University, Erzincan, Turkey)

  • A. ÇELIK

    (Department of Mechanical Engineering, Faculty of Engineering, Ataturk University, Erzurum, Turkey)

Abstract

The present study was focussed on investigating the corrosion properties of plasma-oxidized and -nitrided CoCrMo alloys under different conditions. The structural properties of untreated and treated samples were examined by using scanning electron microscopy (SEM) and X-ray diffraction (XRD). Corrosion behavior of samples was mainly investigated by potentiodynamic polarization and electrochemical impedance spectroscopy in simulated body fluid solution. The results showed that corrosion resistance of the oxidized layers was better than that of the nitrided ones. The corrosion resistance of the alloys increased as the plasma oxidation process temperature and time increased. However, the corrosion resistance of the alloys reduced with increase in the process temperature and time after plasma nitriding process.

Suggested Citation

  • M. Aslan & O. Çomakli & M. Yazici & A. F. Yetim & Ö. Bayrak & A. Çelik, 2018. "THE EFFECT OF PLASMA OXIDATION AND NITRIDATION ON CORROSION BEHAVIOR OF CoCrMo ALLOY IN SBF SOLUTION," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(08), pages 1-14, December.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:08:n:s0218625x19500240
    DOI: 10.1142/S0218625X19500240
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