Abstract
Effect of pulse laser energy density on TiC cladding of aluminium substrate
Highlights
The role of laser technology has intensively increased in surface engineering
Even though the TiC melting temperature is higher than the boiling point of aluminium, this can be possible as the absorption coefficient of TiC at Tehnički vjesnik 22, 6(2015), 1553-1560 the laser wavelength is three times than the one of aluminium, as described by Lietchi et al [9]
Uenishi et al [20] claimed that to obtain TiC clad layer well bound with Al base metal, laser power should be supplied enough to melt cladding powders but Al base metal superficially
Summary
The role of laser technology has intensively increased in surface engineering. In practice, various laser melting procedures can be effectively used in creation of functional parts. Laser cladding is a process which provides enough engineering thickness and excellent bonding with the substrate. Laser cladding with pre-placed powder is a simple and versatile method provided the powder can be made to remain in place until melted. For this reason some form of binder is usually used and the laser beam is scanned over the powder bed paste [1, 3, 5, 6]. The absorption of laser power is dependent on the materials and their surface condition of the preplaced layer. The TiC particles can be melted during the injection, while the Al powder is not boiled, leading to the Al4C3 precipitation in the molten pool
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