Abstract
In this work, Ti-TiC composite have been prepared by powder metallurgy technique using recycled titanium chips and graphite powder. From the Ti chips obtained from the machining of Ti bar, at first Ti powder was prepared by ball milling method. Then the prepared Ti powder was mixed with graphite (C) powder at 48:12 (wt.) ratio and compacted at different compaction pressure (400–700 MPa) and subsequently sintered at 1200 °C temperature. The sintered pellets were characterized by X-ray diffraction (XRD) technique, scanning electron microscopy (SEM). The density of the composite pellets was measured by Archimedes principle. The hardness value of the produced TiC-Ti composite was assessed by Vickers micro-indentation method, and the wear behaviour was evaluated by sliding wear test using ball on disc wear tester. The experimental results revealed that by combined ball milling and sintering route Ti-TiC composite can be prepared from the waste Ti chips, and the compaction pressure has a significant effect on the properties of the prepared composite.
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