IN SITU DEPOSITION OF Fe-TiC NANOCOMPOSITE ON STEEL BY LASER CLADDING

Mansour Razavi, Mohammad Reza Rahimipour, Mojdeh Ganji, Mansoreh Ganjali and Monireh Gangali
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Mansour Razavi: Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran
Mohammad Reza Rahimipour: Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran
Mojdeh Ganji: Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran
Mansoreh Ganjali: Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran
Monireh Gangali: Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran

Surface Review and Letters (SRL), 2017, vol. 24, issue 06, 1-9

Abstract: The possibility of deposition of Fe–TiC nanocomposite on the surface of carbon steel substrate with the laser coating method had been investigated. Mechanical milling was used for the preparation of raw materials. The mixture of milled powders was used as a coating material on the substrate steel surface and a CO2 laser was used in continuous mode for coating. Microstructural studies were performed by scanning electron microscopy. Determinations of produced phases, crystallite size and mean strain have been done by X-ray diffraction. The hardness and wear resistance of coated samples were measured. The results showed that the in situ formation of Fe–TiC nanocomposite coating using laser method is possible. This coating has been successfully used to improve the hardness and wear resistance of the substrate so that the hardness increased by about six times. Coated iron and titanium carbide crystallite sizes were in the nanometer scale.

Keywords: Nanocomposite coatings; laser deposition; Fe–TiC; in situ (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1142/S0218625X17500809

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