Abstract
The electrolytic plasma process (EEP) was employed for surface modification of 1045 carbon steel for the first time, which resulted in a harder surface. Surface composition of the samples at different depths was evaluated by energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS), which revealed diffusion of Cr from the bath to ~15 μm beneath the surface of the samples during the test time of 10 minutes. The effects of applied voltage, test duration, and electrolyte concentration on the hardness and microstructure of the samples were investigated by microhardness measurements and optical microscopy. It was concluded that surface hardness as well as depth hardness of the samples increased with the applied voltage, test duration, and electrolyte concentration.
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Acknowledgments
The authors thank the personnel of the metallography and OM laboratories of Razi Metallurgical Research Center (RMRC) of Iran. The cooperation of ESCA laboratory is highly appreciated.
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Manuscript submitted July 7, 2009.
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Bayati, M., Molaei, R. & Janghorban, K. Surface Modification of AISI 1045 Carbon Steel by the Electrolytic Plasma Process. Metall Mater Trans A 41, 906–911 (2010). https://doi.org/10.1007/s11661-009-0165-y
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DOI: https://doi.org/10.1007/s11661-009-0165-y