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| Research of magnetron sputtered Al–Mg alloy coatings on high-speed electro-galvanizing steel |
| GU Xunlei1; SHAN Yuqiao1; LIU Changsheng1; YU Xiaozhong2 |
1.Key Laboratory for Anisotropy and Texture of Materials; Ministry of Education; Northeastern University; Shenyang 110004
2.Metal Protection Center of Northeastern University; Shenyang 110004 |
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Cite this article:
GU Xunlei SHAN Yuqiao LIU Changsheng YU Xiaozhong. Research of magnetron sputtered Al–Mg alloy coatings on high-speed electro-galvanizing steel. Chin J Mater Res, 2009, 23(5): 529-533.
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Abstract The Al–Mg alloy coatings were deposited on high-speed electro-galvanizing steel by double-target DC magnetron sputtering process. The morphologies and compositions were analyzed, and the influences of target power and substrate temperature on corrosion-resistance properties were investigated by electrochemical measurement and neutral salt spray test. The results show that the coatings
distribute dense with increasing the substrate temperature, but excessively high temperature cause more granular particles and slightly higher corrosion current density. The optimal corrosion-resistance properties can be achieved by synthetic adjustment of target power and substrate temperature. The corrosion current density is approximately 4 μAcm−2 and anti–salt spray time is 120 h. The structure of coatings is determined to be Al12Mg17.
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Received: 17 February 2009
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| Fund: Supported by the Program for Changjiang Scholars and Innovative Research Team in University No.IRT0713. |
| 1 B.A.Shedden, M.Samandi, B.Window, Stoichiometry of unbalanced magnetron sputtered Al-Mg alloy coatings, Surf. Coat. Technol., 97, 557(1997)
2 B.Enders, H.Martin, G.K.Wolf, Corrosion and wear properties of multipurpose coatings deposited by ion-beamassisted deposition, Surf. Coat. Technol., 60, 556(1993)
3 P.J.Kelly, R.D.Arnell, Magnetron sputtering: a review of recent developments and applications, Vacuum, 56, 159(2000)
4 R.D.Arnell, R.Bates, The deposition of highly supersaturated metastable aluminium-magnesium alloys by unbalanced magnetron sputtering from composite targets, Vacuum, 43(1-2), 105(1992)
5 K.R.Baldwin, R.I.Bates, R.D.Arnell, C.J.E.Smith, Aluminium-magnesium alloys as corrosion resistant coatings for steel, Corros. Sci., 38(1), 155(1996)
6 R.I.Bates, R.D.Arnell, Microstructure of novel corrosionresistant coatings for steel components by unbalanced magnetron sputtering, Surf. Coat. Technol., 89, 204(1997)
7 K.L.Moore, J.M.Sykes, S.C.Hogg, P.S.Grant, Pitting corrosion of spray formed Al-Li-Mg alloys, Corros. Sci., 50, 3221(2008)
8 John A.Thornton, The microstructure of sputterdeposited coatings, J. Vac. Sci. Technol. A, 4(6), 3059(1986)
9 O.Lunder, J.E.Lein, T.Kr.Aune, K.Nisancioglu, The role of Mg17Al12–phase in the corrosion of Mg alloy AZ91, Corrosion, 45(9), 741(1989)
10 Zhao Mingchun, Liu Ming, Song Guangling, A.Atrens, Influence of the β–phase morphology on the corrosion of the Mg alloy AZ91, Corros. Sci., 50, 1939(2008)
11 K.L.Moore, J.M.Sykes, S.C.Hogg, P.S.Grant, Pitting corrosion of spray formed Al–Li–Mg alloys, Corros. Sci., 50, 3221(2008)
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