Modification of Aluminium sur-face by injecting, dispersing and melting TiB2 powder with the help of a laser beam promises to enhance tribological properties of Aluminium. The present work consists of making single lines and various overlapping lines of TiB2 powder on an Aluminium sub-strate using Nd:YAG laser and analysing their microstructures and hardness. The role of vari-ous processing parameters such as laser power, scanning speed, laser beam diameter, percentage of overlap, powder flow rate on laser cladding has been described. It is possible to make a clad layer of uniform thickness of 0.55 mm having hardness of 100 HV.

Topics
Tribology, Lasers, Chemical elements, Materials synthesis and processing
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