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Twinning-induced pseudoelastic behavior in (MoW)85(TaTi)7.5Zr7.5
  • Aayush Sharma, Iowa State University
  • Valery I. Levitas, Iowa State University
  • Prashant Signh, Ames Laboratory
  • Anup Basak, Iowa State University
  • Ganesh Balasubramanian, Lehigh University
  • Duane D. Johnson, Iowa State University and Ames Laboratory
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We provide a critical atomistic evidence of pseudoelastic behavior in complex solid-solution BCC Mo-W-Ta-Ti-Zr alloy. Prior to this work, only limited single-crystal BCC solids of pure metals and quaternary alloys have shown pseudoelastic behavior at low temperatures and high strain rates. The deformation mechanisms investigated using classical molecular simulations under tensile-compressive loading reveal temperature-dependent pseudoelastic behavior aided by twinning during the loading-unloading cycle. The pseudoelasticity is found to be independent of loading directions with identical cyclic deformation characteristics during uniaxial loading. Additionally, temperature variation from 77 to 1500 K enhances the elastic strain recovery in the alloy.


This is a pre-print of the article Sharma, Aayush, Valery I. Levitas, Prashant Singh, Anup Basak, Ganesh Balasubramanian, and Duane D. Johnson. "Twinning-induced pseudoelastic behavior in (MoW)85(TaTi)7.5Zr7.5." arXiv preprint arXiv:1809.06822 (2018). Posted with permission.

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Aayush Sharma, Valery I. Levitas, Prashant Signh, Anup Basak, et al.. "Twinning-induced pseudoelastic behavior in (MoW)85(TaTi)7.5Zr7.5" arXiv (2018)
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