Abstract
High temperature third and fourth stage grain growth has been found to conform to the theoretical rate equation\(^2 - {\text{ }}\overline D _0^2 {\text{ = }}K {\text{(}}t{\text{ - }}t_{\text{0}} {\text{)}}\). The activation energy for fourth stage grain growth has been measured and found to be similar to that of grain boundary self-diffusion. The activation energy for third stage grain growth is considerably larger and is comparable to that of volume self-diffusion.
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Formerly Graduate Student, University of Toronto.
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Simpson, C.J., Aust, K.T. & Winegard, W.C. Activation energies for normal grain growth in lead and cadmium base alloy. Metall Trans 2, 993–997 (1971). https://doi.org/10.1007/BF02664230
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DOI: https://doi.org/10.1007/BF02664230