We present results from some dynamic biaxial loading experiments on the transition between two homogeneously deformed variants of martensite in single crystals of Cu-14wt%Al-4wt%Ni. Observations of the microstructural changes during loading show that the main mechanism by which one variant grows at the expense of another is a tip-splitting event; the tips of martensite needles present in the specimen suddenly split. We present a simple kinetic model of this phenomenon which captures the main qualitative results of these experiments. This is a preliminary report of results which will appear in complete form in a forthcoming paper by the authors (Abeyaratne, Chu and James, 1994).
|Number of pages
|American Society of Mechanical Engineers, Applied Mechanics Division, AMD
|Published - 1994
|Proceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
Duration: Nov 6 1994 → Nov 11 1994