Abstract
The microstructure and phase composition of low-pressure die-cast (LPDC) and high-pressure diecast (HPDC) magnesium alloy AM50 were examined by transmission electron microscopy (TEM) techniques in combination with optical microscopy, scanning electron microscopy (SEM), and electron-probe microanalysis (EPMA). It has been established that the dimensions and morphology of the constituent phases (α-Mg solid solution, Mg17Al12, and Al8Mn5) depend on the processing parameters. The results obtained suggest that there is a ternary eutectic with the aforementioned three phases in the Mg-Al-Mn system. Phase transformations leading to the observed microstructures are discussed.
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Gertsman, V.Y., Li, J., Xu, S. et al. Microstructure and second-phase particles in low- and high-pressure die-cast magnesium alloy AM50. Metall Mater Trans A 36, 1989–1997 (2005). https://doi.org/10.1007/s11661-005-0319-5
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DOI: https://doi.org/10.1007/s11661-005-0319-5