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Effect Of Pulse Duty Cycle On Properties Of Hard Nanocrystalline Surface Fabricated By Duplex Treatments

Author

Listed:
  • M. ALIOFKHAZRAEI

    (Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, P. O. Box 14115-143, Tehran, Iran)

  • A. SABOUR ROUHAGHDAM

    (Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, P. O. Box 14115-143, Tehran, Iran)

Abstract

Up to fourth moment distribution of carbide nanocrystallites produced by duplex treatments of surface nanocrystallization and pulsed plasma electrolytic carbonitriding on AISI 1010 mild steel was investigated by the means of figure analysis with high precision. Skewness and kurtosis study of the Gaussian distribution have been studied and the effect of duty cycle of pulsed current has been determined. The usage of lower duty cycles of pulsed current is more suitable for achieving lower sizes of carbide nanocrystallites. Surface roughness of treated samples was measured and it has been observed that there is an optimum level of duty cycle of pulsed current for surface roughness increasing (difference between two measured data).

Suggested Citation

  • M. Aliofkhazraei & A. Sabour Rouhaghdam, 2009. "Effect Of Pulse Duty Cycle On Properties Of Hard Nanocrystalline Surface Fabricated By Duplex Treatments," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 16(03), pages 441-447.
    • Handle: RePEc:wsi:srlxxx:v:16:y:2009:i:03:n:s0218625x09012834
    DOI: 10.1142/S0218625X09012834
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