Szczegóły publikacji
Opis bibliograficzny
Thermal stability and two-step devitrification of melt-spun $Cr_{16}Mn_{16}Fe_{16}Co_{16}Ni_{16}P_{20}$ high-entropy metallic glass / Krzysztof Ziewiec, Artur BŁACHOWSKI, Krystian Prusik, Aneta ZIEWIEC // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944 . — 2026 — vol. 19 iss. 14, art. no. 3034, s. 1-13. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 12-13, Abstr. — Publikacja dostępna online od: 2026-07-14
Autorzy (4)
- Ziewiec Krzysztof
- AGHBłachowski Artur
- Prusik Krystian
- AGHZiewiec Aneta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 169324 |
|---|---|
| Data dodania do BaDAP | 2026-09-11 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma19143034 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
The thermal stability and devitrification pathway of melt-spun high-entropy Cr16Mn16Fe16Co16Ni16P20 metallic glass were investigated using transmission electron microscopy/selected-area electron diffraction (TEM/SAED), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and Fe-57 M & ouml;ssbauer spectroscopy. TEM/SAED confirmed an amorphous ribbon structure, with diffuse rings and radial maxima at k(1) = 0.84799 nm(-1) and k(2) = 1.44459 nm(-1). Non-isothermal DSC revealed two exothermic events, Peak I at similar to 716-752 K and Peak II at similar to 881-930 K, both shifting to higher temperatures with increasing heating rate. Kissinger analysis yielded apparent activation energies of Ea(1) = 359.2 kJ/mol for Peak I and Ea(2) = 414.9 kJ/mol for Peak II. Specimens heated in the DSC under argon at 20 K/min to selected target temperatures were examined ex situ. The XRD patterns are consistent with the onset of crystallization during Peak I, with reflections tentatively attributed to an Fe3P-type phase and an FCC solid solution. Peak II is associated with further phase evolution, including the development of reflections compatible with MnNi-type and Co2P-type phases. Because of peak overlap in this multicomponent alloy, the proposed phase sequence should be regarded as a plausible interpretation based on combined DSC, XRD, and M & ouml;ssbauer evidence rather than as a uniquely resolved quantitative phase analysis. M & ouml;ssbauer spectra reveal three paramagnetic Fe environments. With increasing DSC target temperature, the high-QS Fe3 component, representing a highly distorted Fe environment, decreases systematically, whereas the low-QS Fe1 component, associated with a more symmetric, nearly cubic Fe environment, becomes dominant. The high apparent activation energies indicate a larger effective kinetic barrier than in many simpler transition-metal-phosphorus amorphous alloys.
