Hassanpour Afrouz, Hilke Sven, Rösner Harald, Divinski Sergiy V, Wilde Gerhard
Research article (journal)
The impact of severe plastic deformation by high-pressure torsion on the relaxation of the glassy and supercooled liquid states of Pd40Ni40P20 was investigated using a combination of differential scanning calorimetry, low-temperature heat capacity, and fluctuation electronmicroscopy. The changes in the calorimetric signals due to deformation and subsequent heat treatments were analyzed and a correlationbetween deformation (rejuvenation) and annealing (relaxation) was found in relation to medium-range order (MRO). Moreover, acoupling between the occurrence of an exothermic peak in the supercooled liquid state and specific changes in the MRO types were identified.These findings are comprehended in a potential energy landscape scheme offering a new approach for MRO engineering of glasses.
Release year: 2020
Language in which the publication is written: English
Link to the full text: https://aip.scitation.org/doi/10.1063/5.0026950