Magnesium alloy standard tensile specimens was simulated by the Anycasting software to understand effects of processing parameters including pouring temperature

squeezing pressure and mould temperature on mechanical properties of the squeezing casting AZ91D magnesium alloy.Meanwhile

grain size in the alloy was observed.The results reveal that with increasing in pouring temperature or mould temperature

mechanical properties of the alloy are firstly increased and then decreased

and with increasing in squeezing force

it is gradually increased.The desirable mechanical properties

such as tensile strength of 235MPa

elongation of 4.6% and Vikers hardness of approximately 62

can be obtained in the squeezing casting AZ91 Dalloy with pouring temperature of 670 ℃ and mould temperature of 200 ℃ as well as squeezing force of 120MPa.Under-cooling rate of AZ91D alloy during solidification process is increased by pressure

which raises the cooling rate of alloy and increases the thermal conductivity

refining obviously grain size and improving mechanical properties of alloy as a result of increasing nucleation rate.