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Resistance of WE43 and ZRE1 Magnesium Alloys to Gas Corrosion

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
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.
Rocznik
Strony
217--221
Opis fizyczny
Bibliogr. 15 poz., tab., wykr., wzory
Twórcy
autor
  • Faculty of Materials Engineering and Metallurgy, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland
  • Faculty of Materials Engineering and Metallurgy, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland
Bibliografia
  • [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.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-88225c9b-86f5-4d1f-a982-7d5ee15dac26
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