The microstructure and mechanical properties of permanent-mould cast Mg–5wt%Sn–(0–2.6)wt%Di alloys

Effect of addition of Sn on the microstructure and mechanical properties of Mg–MM (misch-metal) alloys

“…The EDS result shows that the stiochiometry of the small rod-shaped particles is close to Mg 3 RE 1 Sn 1 . The small rod-shaped phase in the present study is similar to the secondary solidification phase reported in the Mg-Sn-didymium alloys [12]. However, the composition of the small rod-shaped particles, (Sn x (Nd, Pr) y ) reported in the Mg-Sn-didymium alloys is not consistent with the composition observed in the present study.…”

“…Recently, Y. Chan et al reported that addition of didymium (neodymium-praseodymium mixed metal) in Mg-5% Sn alloy results in the formation of the small rod-shaped Sn x (Nd, Pr) y phase on the grain boundaries leading to an increase in strength and elongation [12]. Considering the beneficial effect of RE and Sn addition in magnesium alloys, it is strongly required to investigate Mg-RE-Sn system for casting products as well as wrought products.…”

Investigations of the properties of Mg–5Al–0.3Mn–xCe (x=0–3, wt.%) alloys

“…The possibility to form metallic compound can be predicted from the electronegativity differences between two elements [24,25]. The more the differences between two elements, the stronger the bonding force between two elements, and the easier the formation of a metallic compound.…”

Effects of Sb, Sm, and Sn additions on the microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloy

“…Therefore, according to the solidification thermodynamics of metallic melt, Al-Sm, Sb(Sn)-Y, and Sb(Sn)-Nd compounds can be formed preferentially. Al atoms attract RE more strongly than Mg in the Mg-Al alloy and ordered phase tends to form in clusters [11][12]. When Sb/Sn is added to the Mg-6Al-1.2Y-0.9Nd alloy, Sb-Y or Sn-Nd compounds are formed, then Al 2 Y, Al 3 Nd phases decrease in amount and disperse in the alloy, and Al-RE phases tend to disperse in granules.…”