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<p>In this research, electroplastic test with and without stress relaxation is utilized to decouple the rate-dependent component of stress drop. The stress relaxation exhausts the effect of rate-dependent component by dislocation overcoming the short-range obstacle. The net contribution due to electric current after stress relaxation is rate-independent or athermal. No additional assumptions are included to derive the athermal component. The methodology is successfully demonstrated through electric-assisted deformation tests using AA1050 alloy samples.</p>

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A Novel Methodology to Estimate the Athermal Contribution During Electric-Assisted Deformation of AA 1050 Alloy

  • 期刊论文

  • 发表日期：

    2025年6月22日

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  • Devendra Nagpure,
  • Jai Tiwari,
  • Hariharan Krishnaswamy,
  • Murugaiyan Amirthalingam

摘要

In this research, electroplastic test with and without stress relaxation is utilized to decouple the rate-dependent component of stress drop. The stress relaxation exhausts the effect of rate-dependent component by dislocation overcoming the short-range obstacle. The net contribution due to electric current after stress relaxation is rate-independent or athermal. No additional assumptions are included to derive the athermal component. The methodology is successfully demonstrated through electric-assisted deformation tests using AA1050 alloy samples.