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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/039/07/1691-1699

    • Keywords

       

      Pulse electrodeposition; Ni/Al$_2$O$_3$ nanocomposite coating; multilayer coatings; ultrasonic agitation.

    • Abstract

       

      In this study, the Ni/Al$_2$O$_3$ nanocomposite multilayer coatings with six consecutive layers were electrodeposited on the mild steel by pulse electrodeposition with ultrasound agitation from nickelWatts-type bath. Thestructure and morphology of the etched coatings cross-section were characterized by scanning electron microscopy (SEM). The corrosion behaviour of these coatings was investigated in 1 M H$_2$SO$_4$ solution. All of the coatings showed the active–passive transition and the distinct difference in structure had negative influence on their corrosion resistance. Moreover, the tribological behaviour of these coatings was evaluated by pin-on-disc type. The results showed that wear resistance increased with increase in duty cycle and frequency.

    • Author Affiliations

       

      H MAJIDI1 M ALIOFKHAZRAEI1 A KARIMZADEH1 A SABOUR ROUHAGHDAM1

      1. Department of Materials Science, Faculty of Engineering, Tarbiat Modares University, Tehran 1411713116, Iran

    • Dates

       
      Published
      15 December 2016
      Manuscript received
      19 January 2016
      Accepted
      15 April 2016

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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