Metallurgical Transactions

, Volume 2, Issue 1, pp 261–264 | Cite as

The rheological properties of annealed tantalum

  • K. G. Hoge
  • P. P. Gillis
Mechanical Behaviour
Received:

Abstract

The influence of strain rate on the mechanical behavior of 99.9 pct pure, fully recrystallized tantalum is examined. Stress-strain curves in tension are obtained from strain rates of 10−5 to almost 104 sec−1. The rate dependence of the upper and lower yield stresses is closely predicted by the Johnston-Gilman model. However, the model does not adequately describe the postyield hardening behavior of the metal.

Keywords

Yield Drop Average Dislocation Velocity 
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Copyright information

© The Metallurgical Society of American Institute of Mining 1971

Authors and Affiliations

  • K. G. Hoge
    • 1
  • P. P. Gillis
    • 2
  1. 1.University of California Lawrence Radiation LaboratoryLivermore
  2. 2.University of KentuchkyLexington

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