An investigation of formation of second phases in microalloyed, AZ31 Mg alloys with Ca, Sr and Ce

Structure stability and mechanical properties of Mg–Al-based alloy modified with Y-rich and Ce-rich misch metals

“…However, the stability and decomposition of the main strengthening phase Al 11 [25] reported that the intermetallic phase Al 11 RE 3 have high thermal stability, without decomposition observed. The observations reported here indicate that there is a limit to the thermal stability of Al 11 RE 3 , and it is stable at temperature up to 200 • C within 800 h, while almost all Al 11 RE 3 intermetallics transform to Al 2 RE at higher temperature of 450 • C for 800 h. As to the exact phase transition point (temperature and time) and the effect of different rare earth elements in Al 11 RE 3 on its stability, further work would be required.…”

Effect of Ce on microstructure, mechanical properties and corrosion behavior of high-pressure die-cast Mg–4Al-based alloy

“…Auto manufacturing companies have reduced vehicle weight by the use of magnesium die castings, which account for about 30% of the total reported consumption of Mg alloys [2]. The high-pressure die-cast (HPDC) Mg-Al-based alloys like AZ91D and AM60B are widely used in non-critical parts such as valve covers and instrument panels due to their excellent combination of die castability, room-temperature mechanical properties and corrosion resistance [3,4].…”

“…It has been reported that the elevated temperature properties of Mg-Al alloys can be improved by the addition of elements such as RE [9][10][11][12][13][14][15], Ca [2,6,16], Sr [2,17], Si [4,5,18], Sn [5] and Sb [4,18]. Among them Mg-Al-RE system is a major development in heat-resistant Mg-Al-based alloys.…”

Corrosion resistance of Mg–5Al–xSr alloys

“…The rapid solidification process refines the microstructure to optimize the composition, which improves the corrosion resistance, creep resistance, tensile yield strength and castability. This process also allows for the addition of more active elements with similar reduction potentials to Mg, such as alkaline [52] and rare earth [53][54][55][56][57][58][59][60][61][62] alloying additions.…”