Low-Stability Pretransition States, Order-Disorder Phase Transitions, and Structural Transformations in Cu_3Au Alloy

摘要

Low-stability states and structural changes in the region of phase transitions are investigated for the example of Cu_3Au binary alloy. Thermoactivated structural transformations at the micro, nano, and macro levels are observed in Cu_3Au alloy with deviation from the stoichiometric composition. In the vicinity of the structural-phase transformations in Cu_3Au alloy with 75 at % Cu, low-stability states appear. Such states exhibit a whole spectrum of anomalous phenomena preparing the system for transformation.