Product Code: ICAL08_1601

In Situ Synthesis of Tic Particles on Low Carbon Steel by using Laser Cladding Technique
Ali Emamian, University of Waterloo; Kitchener-Waterloo ON Canada
Amir Khajepour, University of Waterloo; Waterloo ON Canada
Stephen Corbin, University of Waterloo; Waterloo ON Canada
Presented at ICALEO 2008

The present paper describes the effect of different TiC percentage and laser parameters on morphology, distribution of composite particles, and micro hardness of the clad. Pure Ti, graphite, and Iron with 325 mesh particle sizes were used for in situ laser cladding in automatic laser fabrication lab (ALFa) at the University of Waterloo, Canada. In situ laser cladding enables us to make a uniform clad by melting the powder to form a desired composition from pure powder components. Since TiC has excellent properties like hardness, wear and corrosion resistance, we use Ti, Graphite (C) as a composite material to form TiC in order to increase hardness and wear resistance of AISI1030 carbon steel. Different weight percentages of Ti and graphite were used in this study. The effect of laser parameters, such as laser power, and scan speed on clad characteristics were investigated. Results show that having higher amount of TiC particles and using optimum laser parameters produce a uniform clad which is free of crack with strong metallurgical bonding with substrate. XRD results show there is no Fe-Ti in the clad material, and SEM data indicates TiC could form in the clad zone with different morphologies.

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