Szczegóły publikacji
Opis bibliograficzny
Recovery and recrystallization in vanadium foil studied by positron annihilation and X-ray methods / Jerzy Dryzek, Mirosław WRÓBEL, Tomasz Czeppe // International Journal of Refractory Metals & Hard Materials ; ISSN 0958-0611. — 2022 — vol. 103 art. no. 105759, s. 1–10. — Bibliogr. s. 10, Abstr. — Publikacja dostępna online od: 2021-12-08
Autorzy (3)
- Dryzek Jerzy
- AGHWróbel Mirosław
- Czeppe Tomasz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 138346 |
|---|---|
| Data dodania do BaDAP | 2021-12-18 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ijrmhm.2021.105759 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | International Journal of Refractory Metals & Hard Materials |
Abstract
The pure vanadium cold-rolled foils were sequentially annealed at elevated temperature, followed by measurements using positron annihilation and XRD techniques. It was found that in the recovery stage in the temperature range from 100 to 450 °C, a significant rearrangement occurs in the dislocation microstructure, which confirms the reduction of the first positron lifetime component. The recrystallization process was beginning at 650 °C and proceeds to 800 °C or more what is associated with the reduction of the intensity of the second positron lifetime associated with vacancy clusters preassembly located at the boundaries of new grains. The determined activation energy of grain migration was equal to 3.12 ± 0.38 eV, and the recrystallization temperature was established at 700 °C. The significant change in the pole figures indicating recrystallization was noticed only at 1100 °C, however, the recrystallization process has been confirmed by the differential thermal analysis. In the temperature range from 100 to 1100 °C, a continuous decrease of the crystalline lattice strain was observed.
