Resistance of WE43 and ZRE1 Magnesium Alloys to Gas Corrosion

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In spite of the fact that in most applications, magnesium alloys are intended for operation in environments with room temperature, these alloys are subject to elevated temperature and oxidizing atmosphere in various stages of preparation (casting, welding, thermal treatment). At present, the studies focus on development of alloys with magnesium matrix, intended for plastic forming. The paper presents results of studies on oxidation rate of WE43 and ZRE1 magnesium foundry alloys in dry and humidified atmosphere of N2+1%O2. Measurements of the oxidation rate were carried out using a Setaram thermobalance in the temperature range of 350-480°C. Corrosion products were analyzed by SEM-SEI, BSE and EDS. It was found that the oxide layer on the WE43 alloy has a very good resistance to oxidation. The high protective properties of the layer should be attributed to the presence of yttrium in this alloy. On the other hand, a porous, two-layer scale with a low adhesion to the substrate forms on the ZRE1 alloy. The increase in the sample mass in dry gas is lower than that in humidified gas.

[1] Medved, J., Primoz, C., Mrvar C. & Voncina M. (2009). Oxidation Resistance of Cast Magnesium Alloys. Oxidation Materials. 71, 257-270.

[2] Czerwiński, F. (2004). Factors Affecting the Oxidation Nature of Magnesium Alloys. JOM. 29-31.

[3] Zhang, Y., Zeng, X., Liu, L., Lu, Ch., Zhou, H., Li, Q. & Zhu Y. (2004). Effects of Yttrium on Microstructure and Mechanical Properties of Hot-extruded Mg92,3Zn5,8Y1,2Zr0,7 Alloys. Materials Science and Engineering. A 373, 320-327.

[4] Liu, X.B., Chen, R. S. & Han, E. H. (2008). Effects of Ageing Treatment on Microstructures and Properties of Mg86,3Gd10Y3Zr0,7 Alloys with and Without Zn Additions. Journal of Alloys and Compounds. 465, 232-238.

[5] Liu, J., Li, Y. & Wang, Y. F. (2009). The High Temperature Oxidation Behavior of Mg88,5Gd10Y2Zr0,5 Alloy, Oxidation Materials. 71, 319-334.

[6] Spassov, T., Alves, H. & Köster U. (2002). Oxidation of Rapidly Solidified Mg87Ni12Y1 Alloy. Journal of Alloys and Compounds. 336, 163-169.

[7] Zeng, X. Q., Wang, Q. D., Lu, Y. Z., Ding, W. J., Lu, C., Zu, Y. P,. Zhai, C. Q. & Xu, X. P. (2000). Kinetic study on the surface oxidation of the molten Mg90,29Al9Zn0,5Be0,3, alloy. Journal of Materials Science. 36, 2499-2504

[8] Fourneir, V., Marcus P. & Olefjord, I. (2002). Oxidation of magnesium. Surf. Interface Anal. 34, 494.

[9] Seong-Ho, Ha., Jin-Kyu, Lee, & Shae, K. Kim. (2008). Effect of CaO on Oxidation Resistance and Microstructure of Pure Mg. Materials Transactions. 49(5), 1081-1083.

[10] Przeliorz, R. & Piątkowski J. (2015). Corrosion of the WE43 and MSR-B Magnesium Alloys in CO2. Metalurgija. 55(3), 429-432.

[11] Czerwiński, F. (2003). The Oxidation of Mg Alloys In Solid And Semisolid States. Metals & Materials Society. 30-42.

[12] Gaboriaud, R.J. (1980). Self-diffusion of Yttrium in Monocrystaline Yttrium Oxide Y2O3. Journal of Solid Chemistry. 35, 252-261.

[13] Wang, X.M., Zeng, X.Q., Wu, G.S., Yao, S.S. & Li, L.B. (2007). Surface Oxidation Behavior of MgNd Alloys. Applied Surface Science. 253, 9017-9023.

[14] Czerwinski, F. (2002). The Oxidation Behavior of an AZ91D Magnesium Alloy at High Temperatures. Acta Materialia. 50, 2639-2654.

[15] Wang, X.M., Zeng, X.Q., Zhou, Y., Wu, G.S., Yao, S.S. & Lai Y.J. (2008). Early Oxidation Behaviors of Mg-Y Alloys at High Temperatures. Journal of Alloys and Compounds. 460, 368-374.

Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

Journal Information

CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2016: 0.192
Source Normalized Impact per Paper (SNIP) 2016: 0.316


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