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<p>Tungsten alloy has excellent physical properties and is widely used in aerospace, medical, military and other fields. However, it is difficult to achieve efficient and high-quality processing. The use of electroplasticization technology can improve the plasticity and processability of tungsten alloys. On the other hand, the effect of pulse current on the properties of tungsten alloy materials is still unclear. This article takes 93W Ni Fe tungsten alloy as an example and studies the effect of electroplasticity on the mechanical properties of the alloy through uniaxial tensile tests. The effect of pulse current on the elongation and cross-sectional shrinkage of tungsten alloy is studied. It describes how flow stress and pulse parameters are interrelated. Finally, a flow stress model based on the Johnson Cook model is used to investigate the effects of effective current density and pulse frequency on stress.</p>

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The Electroplastic Behavior and Rheological Stress Model of Tungsten Alloys under the Action of Electrical Pulses

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Xiongfei Jia,
  • Bo Zhang,
  • Gaofeng Hu,
  • Hong Wei,
  • Guangjun Chen

摘要

Tungsten alloy has excellent physical properties and is widely used in aerospace, medical, military and other fields. However, it is difficult to achieve efficient and high-quality processing. The use of electroplasticization technology can improve the plasticity and processability of tungsten alloys. On the other hand, the effect of pulse current on the properties of tungsten alloy materials is still unclear. This article takes 93W Ni Fe tungsten alloy as an example and studies the effect of electroplasticity on the mechanical properties of the alloy through uniaxial tensile tests. The effect of pulse current on the elongation and cross-sectional shrinkage of tungsten alloy is studied. It describes how flow stress and pulse parameters are interrelated. Finally, a flow stress model based on the Johnson Cook model is used to investigate the effects of effective current density and pulse frequency on stress.