Y_2O_3改性细晶Ni_3Al合金涂层在900℃下的循环氧化性能

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Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 22; no. 8; pp. 2041 - 2048
Main Author 周月波 张海军
Format Journal Article
LanguageEnglish
Published 2012
Subjects
Ni3Al
循环氧化
活性元素效应
电镀
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ISSN1003-6326

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Bibliography:ZHOU Yue-bo, ZHANG Hai-jun College of Materials Science and Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China
43-1239/TG
Ni3Al coatings with and without Y2O3 particles were developed by annealing the electrodeposited Ni-Al composite coatings with and without Y2O3 particles at 800 °C for 3 h. The microstructures and cyclic oxidation performances of the produced Ni3Al coatings were comparatively investigated, with the emphasis on the effect of Y2O3. SEM/EDAX and TEM characterizations showed that the dispersion of Y2O3 refines the grains. Oxidation at 900 °C for 100 h showed that the addition of Y2O3 significantly improved the cyclic oxidation resistance of Ni3Al coating. The effect of Y2O3 on the microstructure and the oxidation of the Ni3Al coating were discussed in detail.
electrodeposition; Ni3Al; cyclic oxidation; reactive element effect
ISSN:1003-6326