Dynamic mechanical relaxation in LaCe-based metallic glasses: influence of the chemical composition
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
The mechanical relaxation behavior of the (La0.5Ce0.5)65Al10(CoxCu1-x)25 at% (x = 0, 0.2, 0.4, 0.6, and 0.8) metallic glasses was probed by dynamic mechanical analysis. The intensity of the secondary ß relaxation increases along with the Co/Cu ratio, as has been reported in metallic glasses where the enthalpy of mixing for all pairs of atoms is negative. Furthermore, the intensity of the secondary ß relaxation decreases after physical aging below the glass transition temperature, which is probably due to the reduction of the atomic mobility induced by physical aging.
CitationLiu, M. [et al.]. Dynamic mechanical relaxation in LaCe-based metallic glasses: influence of the chemical composition. "Metals", 17 Setembre 2019, vol. 9, p. 1013:1-1013:11.