Aerospace Engineering, Materials Science and Engineering, Mechanical Engineering, Chemical and Biological Engineering, Physics and Astronomy, Ames Laboratory
Journal or Book Title
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.
Sharma, Aayush; Levitas, Valery I.; Signh, Prashant; Basak, Anup; Balasubramanian, Ganesh; and Johnson, Duane D., "Twinning-induced pseudoelastic behavior in (MoW)85(TaTi)7.5Zr7.5" (2018). Materials Science and Engineering Publications. 308.