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Effect of Traverse Speed on Microstructure and Microhardness of Cu/B4C Surface Composite Produced by Friction Stir Processing

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Abstract

Friction stir processing (FSP) has evolved as a potential candidate to fabricate surface composites. This paper investigates the influence of traverse speed on microstructure and microhardness of Cu/B4C surface composite fabricated using FSP. The traverse speed was varied from 20 to 60 in steps of 20 mm/min. The tool rotational speed, axial force and groove width were kept constant. Optical microscopy and scanning electron microscopy were employed to study the microstructure of the fabricated surface composites. The results indicated that the traverse speed significantly influenced the area of the surface composite and distribution of B4C particles. The area of the surface composite was found to bear an inversely proportional relationship to traverse speed. Lower traverse speed exhibited homogenous distribution of B4C particles while higher traverse speed caused poor distribution of B4C particles in the surface composite.

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Acknowledgments

The authors are grateful to the Management and Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, India for extending the facilities to carry out this investigation. The authors also acknowledge the financial support rendered by the Naval Research Board, Defence Research and Development Organization (DRDO), Govt. of India. One of the authors, Dr. I. Dinaharan acknowledges the Department of Science and Technology, Govt. of India for providing INSPIRE fellowship.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, 641014, Tamil Nadu, India

    R. Sathiskumar & N. Murugan

  2. Centre for Research in Metallurgy (CRM), School of Mechanical Sciences, Karunya University, Coimbatore, 641114, Tamil Nadu, India

    I. Dinaharan & S. J. Vijay

Authors
  1. R. Sathiskumar
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  2. N. Murugan
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  3. I. Dinaharan
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  4. S. J. Vijay
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Correspondence to R. Sathiskumar.

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Sathiskumar, R., Murugan, N., Dinaharan, I. et al. Effect of Traverse Speed on Microstructure and Microhardness of Cu/B4C Surface Composite Produced by Friction Stir Processing. Trans Indian Inst Met 66, 333–337 (2013). https://doi.org/10.1007/s12666-013-0259-5

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  • DOI: https://doi.org/10.1007/s12666-013-0259-5

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