Szczegóły publikacji
Opis bibliograficzny
Microstructural anisotropy, phase composition and magnetic properties of as-cast and annealed $Ni-Mn-Ga-Co-Cu$ melt-spun ribbons / A. Brzoza, M. Kowalczyk, A. Wierzbicka-Miernik, P. Czaja, W. Maziarz, A. Wójcik, J. Wojewoda-Budka, M. SIKORA, J. Dutkiewicz, M. J. Szczerba // Journal of Alloys and Compounds ; ISSN 0925-8388 . — 2019 — vol. 776, s. 319–325. — Bibliogr. s. 324–325, Abstr. — Publikacja dostępna online od: 2018-10-19. — A. Wójcik, A. Brzoza – afiliacja: Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Kraków, Poland
Autorzy (10)
- Brzoza-Kos Agnieszka
- Kowalczyk Maciej
- Wierzbicka-Miernik Anna
- Czaja Paweł
- Maziarz Wojciech
- Wójcik Anna
- Wojewoda-Budka Joanna
- AGHSikora Marcin
- Dutkiewicz Jan
- Szczerba Maciej Jakub
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 118314 |
|---|---|
| Data dodania do BaDAP | 2018-11-30 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jallcom.2018.10.231 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Alloys and Compounds |
Abstract
Ni-Mn-Ga-Co-Cu melt spun ribbons were investigated in the as-cast and annealed states. The initial microstructure of the ribbons was highly anisotropic along the growing direction and was characterized by three different regions of equiaxed, columnar and dendritic grains. At ambient temperature, the microstructure was composed of two martensitic phases, i.e. non-modulated and seven-layer modulated, and the high temperature L21 austenite phase. The stabilization of the austenite phase was a consequence of a strong grain size reduction, especially close to the “contact” side of the ribbons. Subsequent annealing at 823 K triggered atomic ordering, which promoted an improvement in the magnetization. Additional annealing at 1173 K brought about a substantial refinement of the microstructure. The ribbon structure changed to a single non-modulated martensite phase, whereas on a microstructural level, the grains and martensitic plates coarsened considerably. The annealed ribbons resembled oligo-crystalline materials and may cause interest for magnetic field-induced strain applications. © 2018 Elsevier B.V.
