Fig. 8
Fitting lines: a relationship between ln σ(ɛ s )/σ 0 and ln (1 + ɛ s /ɛ 0); b relationship between \({ \ln }\sigma \left( {\varepsilon_{s} ,\dot{\varepsilon }_{s} } \right)/g\left( {\varepsilon_{s} } \right)\) and \(ln \left( {1 + \dot{\varepsilon }_{s} /\dot{\varepsilon }_{0} } \right)\); c relationship between \(\sigma \left( {\varepsilon_{s} ,\dot{\varepsilon }_{s} , T} \right)/g\left( {\varepsilon_{s} } \right) \times \varGamma \left( {\dot{\varepsilon }_{s} } \right)\) and T