Journal article
Slow aging dynamics and avalanches in a gold-cadmium alloy investigated by x-ray photon correlation spectroscopy
L Müller, M Waldorf, C Gutt, G Grübel, A Madsen, TR Finlayson, U Klemradt
Physical Review Letters | AMER PHYSICAL SOC | Published : 2011
Abstract
Results of a x-ray photon correlation spectroscopy experiment on the very weakly first order martensitic transformation of a Au50.5Cd 49.5 single crystal are presented. Slow non-equilibrium-dynamics are observed in a narrow temperature interval in the direct vicinity of the otherwise athermal phase transformation. These dynamics are associated with the martensite-aging effect. The dynamical aging is accompanied by an avalanchelike behavior which is identified with an incubation-time phenomenon. © 2011 American Physical Society.