Journal
JOURNAL OF APPLIED PHYSICS
Volume 128, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0026950
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Funding
- DFG via WI [1899/29-1]
- DFG [211/719-1 FUGG]
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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 electron microscopy. The changes in the calorimetric signals due to deformation and subsequent heat treatments were analyzed and a correlation between deformation (rejuvenation) and annealing (relaxation) was found in relation to medium-range order (MRO). Moreover, a coupling 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.
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