Authors:
Foysal Kabir Tareq (University of Agder, Norway),
Ragnhild Elizabeth Aune (Norwegian University of Science and Technology, Norway),
Mohammad Ibrahim (University of Agder, )
Abstract:
The laser metal deposition (LMD) process is a promising additive manufacturing (AM) technology that enables to build high precision near-net-shape metal components from metal powders. The quality of the LMD parts is highly dependent on the powder properties and processing parameters which need to be optimized to obtain accurate geometry with favorable properties. In the present study, spherical NiSi32 powder was prepared by an inductively coupled plasma spheroidization (ICPS) and later used during LMD to deposit beads on a steel substrate. Spherical NiSi32 power properties and the influence of laser power, deposition speed, and powder mass flow rate on the properties of the LMD deposited beads were investigated using different techniques such as X-ray diffractometer, scanning electron microscope, and energy dispersive spectroscopy to evaluate the phases, microstructure, elemental composition, and surface roughness. The results showed that the process parameters of LMD significantly influenced the properties of LMD deposited beads.
DOI:
https://doi.org/10.59499/WP225372157