Abstract
Constitutive equations obtained from the creep behaviour of 99.9 wt % pure Bi and from Sn–10 wt % Bi single-phase solid solution are applied in the continuum mechanics creep model of Tanaka et al. [1] to predict the creep behaviour of a eutectic Bi–42 wt % Sn alloy. At low stresses, Bi is the load bearing phase, while at high stresses, Sn–10 wt % Bi is the load bearing phase. The continuum mechanics creep model is able to predict the shape of the steady-state versus strain curves. However, the model predicts creep rates that are generally lower than the data. This inconsistency may be caused by a phase boundary sliding contribution to the creep rate, which is unaccounted for by the model. Creep tests done on Sn–42 wt % Bi samples having various microstructural morphologies support this conclusion, where the more spheroidized microstructure creeps faster. © 1998 Kluwer Academic Publishers
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Raeder, C.H., Mitlin, D. & Messler, R.W. Modelling the creep rates of eutectic Bi–Sn solder using the data from its constitutive phases. Journal of Materials Science 33, 4503–4508 (1998). https://doi.org/10.1023/A:1004439931547
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DOI: https://doi.org/10.1023/A:1004439931547