Viscoelastic behavior of 80In15Pb5Ag and 50Sn50Pb alloys: Experiment and modeling
نویسندگان
چکیده
Dynamic and creep behavior of 80In15Pb5Ag and 50Sn50Pb were studied isothermally over nine decades of time and frequency. 80In15Pb5Ag was examined at 26, 21, and 50 °C, and 50Sn50Pb was examined at 21 °C. Viscoelastic behavior was observed at strains less than 10 as a function of temperature and time/frequency. At the small strain used in the study, the alloys exhibit linear viscoelasticity rather than the viscoplasticity observed at larger strain. Viscoelasticity was subject to constitutive modeling. The creep followed a superposition of a stretched exponential and a power law in time, and an Arrhenius form in temperature. Behavior was thermorheologically simple over at least nine decades of true time and frequency. © 2000 American Institute of Physics. @S0021-8979~00!02203-9#
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