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dc.contributor.authorA. Srichenen_US
dc.contributor.authorC. Banjongpraserten_US
dc.description.abstractThermal spray coating is one of the technologies used to prevent corrosion and wear by creating a protective layer on the substrate. From previous research, the microstructure of arc-sprayed nickel-chromium-molybdenum-aluminium (Ni-Cr-Mo-Al) after heat treatment at 1100°C was investigated. It was found that the corrosion rate of this coating under 20vol%H2SO4 was reduced by 97%. However, the heat treatment at high temperatures is still limited to industrial applications. Therefore, this research will focus on studying microstructure and properties after heat treatment at moderately high temperatures, which are in a range of service temperature. Specimens were arc sprayed and heat treated at 300, 400, 500, 600 and 700°C and characterized by Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS) technique. Phases were analyzed by X-ray diffraction (XRD). There was no significant change of γ-Ni grains after heat treated at 600°C for 10 days from the Electron Backscattered Diffraction (EBSD) study. The hardness of the coatings increased after heat treatments due to a reduction in porosity, an increase of oxides and the formation of MoSi2.en_US
dc.subjectPhysics and Astronomyen_US
dc.titleEffects of heat treatments on the microstructure and hardness of thermally sprayed Ni-Cr-Mo-Al alloy coatingen_US
dc.typeConference Proceedingen_US
article.title.sourcetitleJournal of Physics: Conference Seriesen_US
article.volume1719en_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

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