Fig. 4: Predict elastic limit based on the reversibility of ST events.
From: Anomalous temperature dependence of elastic limit in metallic glasses
a Selected MEPs of the ST Event I at different applied strains within the range \(({\varepsilon }_{\min },{\varepsilon }_{\max })\) where both States ①(initial state) and ② (final state) are metastable. b Energy barrier as functions of the applied strain ε for Event I in forward \({E}_{{{{{{{{\rm{b}}}}}}}}}^{{{{{{{{\rm{fwd}}}}}}}}}(\varepsilon )\) and backward \({E}_{{{{{{{{\rm{b}}}}}}}}}^{{{{{{{{\rm{bwd}}}}}}}}}(\varepsilon )\) directions. The thermal fluctuations at different temperatures are marked as horizontal dashed lines, and the eigen barrier Eeig is illustrated as the red dotted line. c Corresponding stress-strain hysteresis loops of Event I at different temperatures. εeig is the strain corresponding to the eigen barrier Eeig. d Predicted elastic limit \({\varepsilon }_{\lim }(T)\) (solid black line) as a function of temperature and the simulated εlim(T) from MD simulations (red stars).
