Cavitation erosion resistance of microarc oxidation coating on aluminium alloy

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Cavitation erosion resistance of microarc oxidation coating on aluminium alloy
	Cheng, Feng 1; Jiang, Shuyun 1; Liang J(梁军)2
刊名	Applied Surface Science
	2013
卷号	280 页码:287-296
关键词	Microarc oxidation coating a-Al2O3 Cavitation erosion resistance Pits
ISSN号	0169-4332
通讯作者	Jiang, Shuyun
英文摘要	Two ceramic coatings are prepared on 2124 aluminum alloy by microarc oxidation (MAO) technology. To explore the cavitation erosion resistance of the MAO coating, cavitation tests were performed by using a rotating-disk test rig. The mass losses, surface morphologies, chemical compositions and the phase constituents of the samples after cavitation tests were examined by using digital balance, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD), respectively. The results indicate that the MAO coatings can extend the incubation period of aluminum alloy, and thus enhance the cavitation erosion resistance as compared to the untreated aluminum alloy samples. After duration of 63 h cavitation test, a lot of erosion pits and the particles in various shapes can be observed on the surfaces of the aluminum alloy samples, while only a few erosion pits are observed on the MAO coatings. Moreover, the mean depths of erosion on the MAO coatings are lower in the first 30 h and are independent on erosion time. The results show that the cavitation erosion of MAO coating is governed by water mechanical impaction, resulting from the effects of brittle fracture of the MAO coating.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (grant nos. 50775036;11172065);the Jiangsu University-Industry Collaboration Project ((grant no. BY2012199)
语种	英语
WOS记录号	WOS:000321045700044
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/18240]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Southeast Univ, Sch Mech Engn, Nanjing 211189, Jiangsu, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Feng,Jiang, Shuyun,Liang J. Cavitation erosion resistance of microarc oxidation coating on aluminium alloy[J]. Applied Surface Science,2013,280:287-296.
APA	Cheng, Feng,Jiang, Shuyun,&Liang J.(2013).Cavitation erosion resistance of microarc oxidation coating on aluminium alloy.Applied Surface Science,280,287-296.
MLA	Cheng, Feng,et al."Cavitation erosion resistance of microarc oxidation coating on aluminium alloy".Applied Surface Science 280(2013):287-296.