AZ91D alloy behaviour

Mathieu S., Kazan J., Rapin C., Steinmetz P. (2000), Corrosion behaviour of die cast and thixocast AZ91D Alloys - the use of sodium linear carboxylates as corrosion inhibitors , in E. Aghion and D. Eliezer (eds). Mg 2000, Proceedings of the Second Israeli International Conference on Mg Science and Technology, Dead Sea, Israel, pp 339-346. 

S Mathieu, C Rapin, J Kazan, P Steinmetz, Corrosion behaviour of high pressure die-cast and semi-solid cast AZ91D alloys. Corrosion Science, 2002, 44, 2131-2156. 

A. M. Fekry, M.Z. Fatayerji, Electrochemical corrosion behaviour of AZ91D alloy in ethylene glycol , Electrochim. Acta 54 (2009) 6522-6528. 

Song G.-L., Atrens A. (1998), Corrosion behaviour of skin layer and interior of diecast AZ91D , International Conference on Magnesium Alloys and their Applications, Wolfsburg, pp 415-419. 

The possible types of behaviour are summarised by the corrosion rate data in Table 3.3 for HP Mg and Mg alloys corroding at their free corrosion potentials in 1M NaCl at pH 11. HP Mg, taken as standard for comparison, showed a corrosion rate of 1.1 mm/yr. A higher corrosion rate was shown by the interior of diecast AZ91D and by the HP sand-cast AZ91. The 3-phase accelerated the corrosion. In contrast, the surface of diecast AZ91D had a corrosion rate lower than that of HP Mg. The 3-phase provided protection as is clear from the still lower corrosion rate shown by pure p. 

JW Chang, XW Guo, PH Fu, A Atrens, LM Peng, WJ Ding, XS Wang, A comparison of the corrosion behaviour in 5% NaCl solution of Mg alloys NZ30K and AZ91D, Journal of Applied Electrochemistry, 2008, 38, 207. 

R. Ambat, N.N. Aung and W. Zhou, Evaluation of microstructural effects on corrosion behaviour of AZ91D magnesium alloy . Corrosion Science, 42, (2000), 1433-1455. 

Y. Li, T. Zhang and F. Wang (2006), Effect of microcrystallization on the corrosion behaviour of AZ91D magnesium alloy , Electrochim. Acta, 51 2845-50. 

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