Abstract
Three different orientation specimens (P-ND30, P-ND60 and P-TD) prepared from the rolled AZ80 magnesium alloy plates were immersed in simulated body fluid (SBF) for 384 h. Electrochemical impedance spectroscopy (EIS) tests were measured at 24 h, 96 h, 192 h, 288 h, and 384 h during immersion. The corrosion morphology and chemical composition of the three orientation specimens were investigated using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). X-ray diffractometer (XRD) was used to evaluate the phase composition of the surface of the specimen at different immersion stages. The results indicated that the P-ND30 and P-ND60 specimens had similar corrosion behavior. The P-TD specimen showed the best corrosion resistance. A degradation evolution model was established, and the effect of initial orientation on corrosion behavior was discussed.
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The authors gratefully acknowledge the project sponsored by the support from National Natural Science Foundation of China (Nos. 51775502, 51275472) and the Natural Science Foundation of Zhejiang Province (No. LY20E050024).
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Zhu, T., Gong, X., Xiong, Y. et al. Effect of Initial Orientation on Corrosion Behavior of AZ80 Magnesium Alloy in Simulated Body Fluid. Met. Mater. Int. 27, 2645–2655 (2021). https://doi.org/10.1007/s12540-020-00611-1
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DOI: https://doi.org/10.1007/s12540-020-00611-1