Abstract
The kinetics of the martensitic transition in In-Tl alloys has been studied by x-ray- and neutron-diffraction methods. A characteristic waiting time appears at fixed temperature above , the normal martensitic phase transition start temperature. A similar waiting time is also seen for inverse phase transitions. A peculiar temperature , which is above , but below , is found to exist. The time development of x-ray-diffraction patterns shows a very different behavior whether the temperature is above or below . It is found that ideal nucleation and growth take place between and . Between and , the kinetics of the phase transition is more complicated. In order to understand the kinetics of the phase transition, the temperature-dependent waiting time curve in In-Tl alloys is calculated using the Roitburd method [A. L. Roitburd, Mater. Sci. Eng. A127, 229 (1990)] and is found to be in good agreement with experimental results.
- Received 25 April 1994
DOI:https://doi.org/10.1103/PhysRevB.50.9020
©1994 American Physical Society