The effect of tin addition on the microstructure and mechanical properties of squeeze cast AM60 alloy

Effect of Mg2Sn Intermetallic on the Grain Refinement in As-cast AM Series Alloy

“…It means that the AM and corresponding ATM alloy have the same amounts of Mg 17 Al 12 . The difference between the present result and previous report (Ref 16) probably ascribes to the different casting method. Moreover, from the backscattered scanning electron micrographs and the x-ray line scanning of different elements for ATM910 alloy (Fig 2e and f), it demonstrates that the finer Mg 2 Sn intermetallic (bright spots) formed into the divorced eutectic Mg 17 Al 12 phase (gray convex phase) in ATM alloys.…”

“…Those reports inferred that Mg 2 Sn could act as the nucleation sites for the Mg 17 Al 12 . However, they did not provide any further evidence (such as TEM result or any heterogeneous nucleation theories) to confirm Mg 2 Sn intermetallic served as the heterogeneous nucleation cores for Mg 17 Al 12 (Ref [16][17][18]. In the present work, AM60, AM90, and with addition of 1 wt.% Sn alloys were prepared by traditional casting to investigate the grain refinement mechanism.…”

“…Their results revealed that Mg-Al-Sn series alloy exhibited good mechanical properties which even better than commercial AZ91 alloy. Furthermore, addition of Sn as the micro-alloying element into squeeze-casted AM60 and as-cast AZ91 alloys could improve the strength, enhance the impression creep resistance, and decrease tear susceptibility (Ref [16][17][18]. From the above, it is believed that Sn is an effective alloying element for Mg-Al-based alloys.…”

Solid solution strengthening in polycrystals of Mg–Sn binary alloys

“…The Mg-Sn system shows some characteristics in terms of creep resistance due to the formation of Mg 2 Sn phase with a high melting temperature of 1043 K [1][2][3][4][5][6][7][8][9]. Moreover, with the aid of thermodynamic modeling for Mg-Sn based ternary system [4][5][6], we can better understand the relationship of the phase constituents and compositions to design new alloys.…”

Effect of intensive cooling of alloy AM60 with chromium and vanadium additions on cast microstructure and mechanical properties

“…These alloys characterize in a significantly lower mass than that of light aluminium alloys, but they also have much lower mechanical properties. In order to improve their mechanical properties, magnesium alloys are enriched with different alloy additions [2][3][4][5][6][7][8]12]. In the recent years, research has been made which confirms that a small amount of chromium and vanadium improves the properties of alloy AM60 [9].…”