Positron Annihilation Study of Structural Relaxation and Crystallization in Metallic Glasses Fe78-xCoxSi9B13 |
| J. Filipecki Institute of Physics, Pedagogical University, Armii Krajowej 13/15, 42-201 Częstochowa, Poland |
| Full Text PDF |
| Results of measurements of positron lifetimes and X-ray diffraction in the annealed metallic glasses Fe78-xCoxSi9B13 (x = 0, 20, 40, 60, 78) before and after the process of crystallization are presented. From the results it follows that the annealing process below the crystallization temperature causes changes in concentrations of positron-trapping areas and can be consistently described as the result of two contributions: topological and chemical short range ordering. The process of crystallization causes precipitation of α-Fe and β-Co crystalline phases and also formation of microvoids in the investigated samples. |
| DOI: 10.12693/APhysPolA.83.303 PACS numbers: 61.43.Dq |