Effect of alpha-Al(2)O(3) on the properties of cold sprayed Al/alpha-Al(2)O(3) composite coatings on AZ91D magnesium alloy

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	Effect of alpha-Al(2)O(3) on the properties of cold sprayed Al/alpha-Al(2)O(3) composite coatings on AZ91D magnesium alloy
	Y. S. Tao; T. Y. Xiong; C. Sun; H. Z. Jin; H. Du; T. F. Li
	2009
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	256 期号:1 页码:261-266
摘要	Composite coatings using pure Al powder blended with alpha-Al(2)O(3) as feedstock were deposited on AZ91D magnesium alloy substrates by cold spray (CS). The content of alpha-Al(2)O(3) in the feedstock was 25 wt.% and 50 wt.%, respectively. The effects of alpha-Al(2)O(3) on the porosity, microhardness, adhesion and tensile strength of the coatings were studied. Electrochemical tests were carried out in neutral 3.5 wt.% NaCl solution to evaluate the effect of alpha-Al(2)O(3) on the corrosion behavior of the coatings. The results showed that the composite coatings possessed lower porosity, higher adhesion strength and tensile strength than cold sprayed pure Al coating. The corrosion current densities of the composite coatings were similar to that of the pure Al coating and much higher than that of bare AZ91D magnesium alloy. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[tao, yongshan; xiong, tianying; sun, chao; jin, huazi; du, hao; li, tiefan] chinese acad sci, inst met res, state key lab corros & protect, beijing 110016, peoples r china.;xiong, ty (reprint author), chinese acad sci, inst met res, state key lab corros & protect, beijing 110016, peoples r china;tyxiong@imr.ac.cn
关键词	Cold Spray Porosity Corrosion Az91d Composite Coatings High Corrosion-resistance Kinetic Spray Aluminum Coatings Deposition Behavior Particles Microstructure Films
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32328
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. S. Tao,T. Y. Xiong,C. Sun,et al. Effect of alpha-Al(2)O(3) on the properties of cold sprayed Al/alpha-Al(2)O(3) composite coatings on AZ91D magnesium alloy[J]. Applied Surface Science,2009,256(1):261-266.
APA	Y. S. Tao,T. Y. Xiong,C. Sun,H. Z. Jin,H. Du,&T. F. Li.(2009).Effect of alpha-Al(2)O(3) on the properties of cold sprayed Al/alpha-Al(2)O(3) composite coatings on AZ91D magnesium alloy.Applied Surface Science,256(1),261-266.
MLA	Y. S. Tao,et al."Effect of alpha-Al(2)O(3) on the properties of cold sprayed Al/alpha-Al(2)O(3) composite coatings on AZ91D magnesium alloy".Applied Surface Science 256.1(2009):261-266.