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Chinese Journal of High Pressure Physics  > 2001  >  15(2): 146-150 .
PENG Jian-Xiang, LI Da-Hong. The Influence of Temperature and Strain Rate on the Flow Stress of Tantalum[J]. Chinese Journal of High Pressure Physics, 2001, 15(2): 146-150 . doi: 10.11858/gywlxb.2001.02.012
Citation: PENG Jian-Xiang, LI Da-Hong. The Influence of Temperature and Strain Rate on the Flow Stress of Tantalum[J]. Chinese Journal of High Pressure Physics, 2001, 15(2): 146-150 . doi: 10.11858/gywlxb.2001.02.012
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The Influence of Temperature and Strain Rate on the Flow Stress of Tantalum

doi: 10.11858/gywlxb.2001.02.012
  • 1.

    Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China;

  • 2.

    Graduate School of CAEP, Mianyang 621900, China

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  • Corresponding author: PENG Jian-Xiang
  • Received Date: 03 Nov 2000
  • Rev Recd Date: 02 Jan 2001
  • Publish Date: 05 Jun 2001
    Abstract
  • The influence of temperature and strain rate on the flow stress of tantalum under temperature range from -100 ℃ to 400 ℃ and strain rate from 10-5 s-1 to 5103 s-1 was studied. The results showed that the flow stress of tantalum was very sensitive to the changes of temperature and strain rate. Two theoretical methods were compared, and Zerilli-Armstrong model was found to be more satisfactory to describe the dependence of the flow stress on temperature and strain rate.

     

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