- Tytuł:
- Thermal Stability and Crystallization οf Iron and Cobalt - Based Bulk Amorphous Alloys
- Autorzy:
-
Olszewski, J.
Zbroszczyk, J.
Sobczyk, K.
Ciurzyńska, W.
Brągiel, P.
Nabiałek, M.
Świerczek, J.
Hasiak, M.
Łukiewska, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1811616.pdf
- Data publikacji:
- 2008-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.50.Kj
75.50.Bb
76.80.+y - Opis:
- Microstructure by the Mössbauer spectroscopy and approach to magnetic saturation in the bulk amorphous $Fe_{61}Co_{10}Me_7Y_2B_{20}$ ($Me_7$=$Y_7$, $Y_6Ti_1$ or $Zr_{2.5}Hf_{2.5}W_2$) alloys are investigated. The bulk amorphous $Fe_{61}Co_{10}Zr_{2.5}Hf_{2.5}W_2Y_2B_{20}$ alloy exhibits the best thermal stability and remains amorphous up to 901 K. Moreover, the quasi-dislocations dipoles present in this amorphous alloy have the largest width equal to 6.7 nm. After annealing this alloy below the crystallization temperature the enhancement of both the average hyperfine field and its standard deviation is observed which points to the increase in the atom packing density due to the decay of quasi-dislocation dipoles. After the annealing at 901 K the small amount of the crystalline α-FeCo phase is presented in this alloy. The same crystalline phase appears in the bulk $Fe_{61}Co_{10}Y_8Ti_1B_{20}$ and $Fe_{61}Co_{10}Y_9B_{20}$ alloys after annealing at 750 K and 840 K, respectively.
- Źródło:
-
Acta Physica Polonica A; 2008, 114, 6; 1659-1666
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł