Effect of Electro-Spark Deposition Process Parameter on WC Coating Thickness of H13 Steel Surface

Abstract:

A simple and effective surface coating technique, electro spark deposition (ESD), has been used to produce WC coatings onto H13 steel surface. Influence of process parameter (output voltage, output capacitance, discharge frequency, specific deposition time at el) on the coating thickness was studied. It can be seen, choose output voltage 80V, output capacitance180 μF, discharge frequency 2000 Hz, specific deposition time 8min/cm² obtained to optimal overall quality of coating. The morphology and microstructure of coatings were analyzed using scanning electron microscopy (SEM). The WC coating had an average thickness of about 60 μm and formed metallurgical bonding with the substrate.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 2112-2115
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.2112
• Online since: May 2013
• Authors: Ming Wei Wang, Ren Pan, Wen Xin, Wen Qiang Chen, Xiu Jun Zhao, Shu Li
• Keywords: Electro-Spark Deposition (ESD), Process Parameter, WC Coating Thickness

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