Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Single-step graded surface coating using combined wire and powder feeding laser cladding
AU - Syed, W. U. H.
AU - Pinkerton, A. J.
AU - Liu, Z.
AU - Li, L.
PY - 2005
Y1 - 2005
N2 - This paper reports a new surface coating technique that employs combined powder and wire feeding laser cladding in a single process to deposit dissimilar materials to form a graded coating. Using H13 tool steel as a substrate, copper powder and nickel wire as feeding stocks and a 1.5 kW Diode laser, the feasibility of the technique is demonstrated and the material distribution in the clad is investigated. Electron probe microanalysis (EPMA), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and optical microscopy were used to analyse the deposited clad in terms of elemental composition, microstructure and flow characteristics in the melt pool. It was found that by varying the feed rates of copper powder and nickel wire, varying degrees of graded material could be obtained in a single step.
AB - This paper reports a new surface coating technique that employs combined powder and wire feeding laser cladding in a single process to deposit dissimilar materials to form a graded coating. Using H13 tool steel as a substrate, copper powder and nickel wire as feeding stocks and a 1.5 kW Diode laser, the feasibility of the technique is demonstrated and the material distribution in the clad is investigated. Electron probe microanalysis (EPMA), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and optical microscopy were used to analyse the deposited clad in terms of elemental composition, microstructure and flow characteristics in the melt pool. It was found that by varying the feed rates of copper powder and nickel wire, varying degrees of graded material could be obtained in a single step.
M3 - Conference contribution/Paper
SP - 787
EP - 795
BT - Proceedings of the 24th International Congress on Applications of Lasers and Electro-optics (ICALEO)
PB - Laser Institute of America
ER -