论文信息 - Oxidation Behaviour of WE54 and Elektron 21 Magnesium Alloys

Oxidation Behaviour of WE54 and Elektron 21 Magnesium Alloys

In the present study, the isothermal early oxidation behaviour of the WE54 and Elektron 21 alloys were studied at a temperature of 773 K in pure O2 up to 150 min. The results showed that the oxidation kinetics depending on the chemical composition and microstructure of the investigated alloys. The oxidation kinetics of these alloys in as-cast and T6 conditions obtained a parabolic law, while in supersaturated state these alloys exhibited a linear kinetics. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses indicated that an oxide film, composed of MgO and (Y,Dy)2O3 in WE54 alloy and (Nd,Gd)2O3 in Elektron 21 alloy, had been formed.

T. Rzychoń | A. Kiełbus | R. Przeliorz

[1] E. Otero,et al. Influence of temperature on oxidation behaviour of ZE41 magnesium alloy , 2010 .

[2] Xiangqun Zeng,et al. Early oxidation behaviors of Mg-Y alloys at high temperatures , 2008 .

[3] Xinling Wang,et al. Surface oxidation behavior of MgNd alloys , 2007 .

[4] W. Ding,et al. Cyclic oxidation behaviour of cerium implanted AZ31 magnesium alloys , 2007 .

[5] M. Suéry,et al. Correlation between ignition and oxidation behaviours of AZ91 magnesium alloy , 2005 .

[6] B. Mordike,et al. Structure and Morphology of Effective Obstacles in High Performance Mg — Rare Earth Base Alloys , 2005 .

[7] Zhicheng Li,et al. Growth and morphology of beta phase in an Mg-Y-Nd alloy , 2004 .

[8] F. Czerwinski. The early stage oxidation and evaporation of Mg–9%Al–1%Zn alloy , 2004 .

[9] M. Suéry,et al. Effect of alloying elements on the ignition resistance of magnesium alloys , 2003 .

[10] B. You,et al. The effect of calcium additions on the oxidation behavior in magnesium alloys , 2000 .

[11] M.-L. Boussion,et al. L’oxydation du magnésium par l’air entre 350 et 500° C , 1957 .

[12] K. Sefiane,et al. DIFFUSION IN SOLIDS AND LIQUIDS III , 2008 .

[13] E. A. Gulbransen. The Oxidation and Evaporation of Magnesium at Temperatures from 400° to 500° C , 1945 .