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首页> 外文期刊>Journal of Materials Engineering and Performance >An Experiment on Magnetic Pulse Uniaxial Tension of AZ31 Magnesium Alloy Sheet at Room Temperature
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An Experiment on Magnetic Pulse Uniaxial Tension of AZ31 Magnesium Alloy Sheet at Room Temperature

机译：AZ31镁合金薄板室温下电磁脉冲单轴拉伸实验

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摘要

Formability of magnesium alloys at room temperature or slightly elevated temperatures is low, and exhibiting poor resistance to strain localization and failure. However, it is possible to improve the formability of AZ31 magnesium alloy sheet at high strain rate such as by electromagnetic forming (or magnetic pulse forming). In this study, experimental investigation of uniaxial tension of AZ31 sheet by magnetic pulse forming at room temperature was presented. The approximate rectangular flat spiral coil was employed to carry out the experiments. The specimens used in the tension test by magnetic pulse forming were same as the quasi-static uniaxial test. The samples were placed close to the outside of coil where an approximately homogenous magnetic field distribution prevailed. The experimental results indicate that the total elongation of AZ31 sheet improves about 37% compared with the quasi-static case. Non-uniform deformation occurs in the specimen. The maximum strain takes place on the area C, where is plotted on the specimen. The major and minor principal strains at most increase by approximately 112 and 96% under 5.12 kJ energy. The experimental results obtained in this study provide the fundamentals for the investigation of high speed forming of AZ31 magnesium alloy sheets.
机译：镁合金在室温或略微升高的温度下的可成形性低，并且对应变局部化和破坏的抵抗力差。然而，可以通过诸如电磁成形（或磁脉冲成形）的高应变速率来改善AZ31镁合金板的成形性。在这项研究中，在室温下通过磁脉冲形成的AZ31片材的单轴张力的实验研究被提出。采用近似矩形的扁平螺旋线圈进行实验。通过磁脉冲成形进行拉伸试验的试样与准静态单轴试验相同。将样品放置在靠近线圈外部的位置，在此处线圈周围分布大致均匀的磁场。实验结果表明，与准静态情况相比，AZ31薄板的总伸长率提高了约37％。样品中发生不均匀变形。最大应变发生在区域C上，并在样本上绘制。在5.12 kJ能量下，主要和次要主应变最多增加约112％和96％。本研究获得的实验结果为研究AZ31镁合金薄板的高速成形提供了基础。

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