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对比分析了无振动和振动条件下试样壁厚对ZL101合金组织与性能的影响,并分析了其作用机理。结果表明,随着试样壁厚的增加,无振动和振动条件下ZL101合金的晶粒尺寸均不断增大,相对而言,同一壁厚的振动条件下的ZL101合金中初生α-Al相更加细小、均匀,形状更加圆整;相较于无振动,同样壁厚的振动条件下的ZL101合金的晶粒尺寸和二次枝晶臂间距更小,而初生相形状系数相对较大;随着试样壁厚增加,振动条件下ZL101合金的抗拉强度、屈服强度、硬度和伸长率都表现为逐渐降低的趋势,但相对于未振动的ZL101合金,同样壁厚的经振动处理的合金试样的抗拉强度、屈服强度、硬度和伸长率都有大幅度提升。
The influence of sample wall thickness on the microstructure and properties of ZL101 alloy under vibration and vibration conditions was analyzed and compared. The mechanism of action was also analyzed. The results show that with the increase of sample wall thickness, the grain size of ZL101 alloy increases continuously under the condition of no vibration and vibration. In contrast, the primary α-Al phase in ZL101 alloy with the same wall thickness is more The grain size and secondary dendrite arm spacing of ZL101 alloy are smaller than those without vibration and the same wall thickness, while the shape coefficient of primary phase is relatively large. With the increase of The wall thickness increases and the tensile strength, yield strength, hardness and elongation of ZL101 alloy show a trend of decreasing gradually under the vibration condition. However, compared with the unstimulated ZL101 alloy, the same wall thickness of the alloy treated by vibration Tensile strength, yield strength, hardness and elongation have greatly improved.