The β→α-phase transformation of pure tin has been studied using transmission electron microscopy. A preferred orientational relationship was found between the two phases, with the β being parallel to the α. The transformation front did not proceed into regions of foil below a critical thickness and this may have been the result of surface energy differences between the two phases. The general absence of a specific three-dimensional orientational relationship and observations regarding the nature of the interface suggest strongly that the transformation is massive in nature.
|Number of pages
|Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
|Published - 1 Jan 1991