Fabrication NiAl/Cu Composite Powder for Thermal Spray Coating

Abstract:

The NiAl/Cu feedstock powder was prepared by Cu coating on NiAl powder using electroplating technique. The NiAl (NS450, Metco Sulzer) powder was deposited Cu⁺ from CuSO₄ solution at cathode with vary time process (60, 80 and 100 min). The microstructure and element of NiAl/Cu powders were investigated by scanning electron microscope (SEM) and energy dispersion of X-ray (EDX). The morphology of powder were appeared the Cu element holding all of surface NiAl particles. The chemical composition in powder using X-ray diffraction were presented the Cu phase with time process. The phase compounds were presented the Ni, Al and Cu phases. Then, it was appeared the new phase of Cu₂O at 100 min time deposited. Therefore, it was low contentThe EDX analysis was supported the Cu cover on the surface NiAl powder. In SEM micrograph of NiAl/Cu cross-section coating were presented the completed structure coating of thermal spray technicque. In addition, the Cu content was improved melted particles by investigated increased lamellar of materials. The Cu lamella was distributed between Ni layers. It was confirmed that NiAl/Cu feedstock powder was fabricated by simple technique.

• Periodical: Applied Mechanics and Materials (Volume 866)
• Pages: 240-243
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.866.240
• Online since: June 2017
• Authors: Nuchjira Dejang*
• Keywords: Core-Shell, Feedstock Powder, NiAl-Cu, Thermal Spray

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