研究了差压铸造不同工艺参数对A357合金二次枝晶间距的影响。
The effect of counter-pressure casting parameters on secondary dendrite arm spacing (SDAS)of A357 alloy was studied.
用数学回归的方法得到了AZ91镁合金的凝固冷却速度与二次枝晶间距的定量关系式。
The quantitative relationship between secondary dendrite arm spacing and solidification cooling rate of AZ91 was obtained by regressive analysis.
在此基础上，研究AZ31镁合金在一次变形和二次变形后的常温抗拉强度的变化规律。
On this basis, variation law of AZ31 tensile strength at room temperature was studied after the once deformation and twice deformation.
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