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Manufacturing and Macroscopic Properties of Kinetic Spray Ni-Cr-Al-Y Coating Layer
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 Title & Authors
Manufacturing and Macroscopic Properties of Kinetic Spray Ni-Cr-Al-Y Coating Layer
Kim, Ji Won; Lee, Ji Hye; Jang, Hae Chang; Lee, Kee-Ahn;
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This study attempts to manufacture a Ni-Cr-Al-Y coating layer using a kinetic spray process and investigates the microstructure and physical properties of the manufactured layer. The Ni-22Cr-10Al-1Y (wt.%) composition powder is used, and it has a spherical shape with an average diameter of . Cu plate is used as the substrate. Optical microscope, X-ray diffraction, scanning electron microscope and Vickers hardness test are carried out to characterize the macroscopic properties of the coating layer. Furthermore, the coating layer underwent vacuum heat treatment at temperatures of and for 1 hour to check the effect of heat treatment temperature on the properties. The manufactured coating layer is 1.5 mm thick, and featured identical phases to those found in the powder. The porosity of the coating layer is measured at 2.99%, and the hardness is obtained at . The layer shows reduced porosity as heat treatment temperature increased, and hardness is reduced at but shows a slight increase at . Based on the findings described above, this study also discusses possible manufacturing methods for a Ni-Cr-Al-Y coating layer using the kinetic spray process.
NiCrAlY;MCrAlY;Kinetic spray;Microstructure;
 Cited by
수열합성법을 이용한 NiCrAl 합금 폼 위에 합성된 NiO 촉매 형상 제어,신동요;이은환;박만호;안효진;

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