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Ceramic-metal Composite Coating on Steel Using a Powder Compact Tool Electrode by the Electro-Discharge Coating Process

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Abstract

In this work, using a powder compact tool electrode prepared with TiC-Cu powder mixture a TiC-Cu composite coating was deposited on AISI 1020 steel by the electro-discharge coating (EDC) process. Among the different ratios of TiC and Cu in the tool electrode, it was found that the tool electrode with 60% TiC was capable of producing an acceptable quality coating. The effect of peak current and pulse duration on the deposition rate and surface characteristics of the coating was evaluated. Also, a detailed mechanical characterization of the coating was carried out through the measurement of microhardness and wear resistance of the coated surface. The results indicated up to ten times improvement in the hardness value and four times improvement in the wear resistance as compared to the uncoated substrate material. The microstructure of the deposited layer revealed some undulations on the coating surface specifically processed at higher current, which may affect the wear resistance of the coating. The experimental results revealed that within the processing range, peak current and pulse duration have a significant effect on the performance of the coating due to alteration in the deposition of the coating material.

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Acknowledgments

The authors would like to acknowledge SERB, DST, New Delhi (DO No. SB/FTP/ETA-0295/2013) for the financial support to carry out the present research work.

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Institute of Technology Rourkela, Odisha, India

    Tijo D, Shilpi Kumari & Manoj Masanta

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  1. Tijo D
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  2. Shilpi Kumari
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  3. Manoj Masanta
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Correspondence to Manoj Masanta.

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D, T., Kumari, S. & Masanta, M. Ceramic-metal Composite Coating on Steel Using a Powder Compact Tool Electrode by the Electro-Discharge Coating Process. Silicon 10, 1625–1637 (2018). https://doi.org/10.1007/s12633-017-9646-6

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  • DOI: https://doi.org/10.1007/s12633-017-9646-6

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