Unusual plasticity and strength of metals at ultra-short load durations

G. I. Kanel, E. B. Zaretsky, S. V. Razorenov, S. I. Ashitkov, V. E. Fortov

Research output: Contribution to journalReview articlepeer-review

64 Scopus citations


This paper briefly reviews recent experimental results on the temperature-rate dependences of flow and fracture stresses in metals under high strain rate conditions for pulsed shock- wave loads with durations from tens of picoseconds up to microseconds. In the experiments, ultimate (ideal') values of the shear and tensile strengths have been approached and anomalous growth of the yield stress with temperature at high strain rates has been confirmed for some metals. New evidence is obtained for the intense dislocation multiplication immediately originating in the elastic precursor of a compression shock wave. It is found that under these conditions inclusions and other strengthening factors may have a softening effect. Novel and unexpected features are observed in the evolution of elastoplastic compression shock waves.

Original languageEnglish
Pages (from-to)490-508
Number of pages19
Issue number5
StatePublished - 1 Jan 2017


  • Dynamics of dislocations
  • High-rate fracture
  • High-rate straining
  • Ideal strength Anomalous thermal hardening, polycrystalline metals and single crystals
  • Shock waves in solids

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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