Effect of Glycerin on Micro Arc Oxidation Process and Performance of Ceramic Coatings at the Surface of Magnesium Alloy AZ61

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Effects of addition of glycerin in the electrolyte on the micro arc oxidation process have been investigated with a bipolar asymmetric pulse power supply, which involves peak value of pulse current, voltage, thickness and hardness of ceramic films of AZ61 magnesium alloy as well as surface roughness and structures. The results reveal that addition of a proper amount of glycerin helps to the decrease of positive pulse current peak and voltage, formation of a much dense ceramic coating with increase of the hardness, decrease of the surface roughness and good crystallization. When the amount of glycerin is more than 10ml/l, the growth of ceramic coatings begins to be inhibited and the performance of ceramic coatings seriously turns worse.

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Edited by:

Kai Cheng, Yingxue Yao and Liang Zhou

Pages:

396-400

Citation:

L. Q. Li et al., "Effect of Glycerin on Micro Arc Oxidation Process and Performance of Ceramic Coatings at the Surface of Magnesium Alloy AZ61", Applied Mechanics and Materials, Vols. 10-12, pp. 396-400, 2008

Online since:

December 2007

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$38.00

[1] A.L. Yerokhin, X. Nie, A. Leyland, A. Mattews and et al: Surface coatings technology. Vol. 122 (1999), pp.73-93.

[2] X. Nie, A. Wilson. A. Leyland and et al: Surface coatings technology, Vol. 121 (2000), pp.506-513.

[3] A.L. Yerikhin, A. Leyland and A. Mattews: Applied Surface science. Vol. 200 (2002), pp.172-184.

[4] C. Blawert, V. Heitmann, W. Dietzel and et al: Surface Coatings Technology, Vol. 200 (2005), pp.68-72.

[5] H.P. Duan, K.Q. Du, C.W. Yan and et al: Electrochimica Aata. Vol. 51 (2006), pp.2898-2908.

[6] S. Verdier, M. Boinet, S. Maximovitch and et al: Corrosion Science. Vol. 47 (2005), pp.1429-1444.

[7] H.F. Guo, M.Z. An, H.B. Huo and et al: Applied surface science, Vol. 252 (2006), pp.7911-7916.

[8] F.Y. Jin, P. K, Chu, G.D. Xu and et al: Materials Science Engineering A, Vol. 435-436 (2006), pp.123-126.

[9] Y.Q. Wang, K. Wu and M.Y. Zheng: Surface Coatings Technology. Vol. 201 (2006), pp.353-360.

[10] T. Qiu, X.L. Wu, F.Y. Jin and et al: Applied surface science, Vol. 253 (2007), pp.3987-3990.

[11] Q.Z. Cai, L.S. Wang, B.K. Wei and et al: Surface Coatings Technology, Vol. 200 (2006), pp.3727-3733.

[12] M. Tarakci, K. korkmaz, Y. Vencer and et al: Surface Coatings Technology, Vol. 199 (2005), pp.205-212.

[13] K.I. Schiffmann, R. Bethke and N. Kristen: Surface Coatings Technology, Vol. 200 (2005), pp.2348-2357. Revised Version: December (2007).

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