Design and characterization of novel Zr-Al-Fe-Y metallic glasses with nanoscale phase separation
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
Autoren
Organisationseinheiten
Externe Organisationseinheiten
- Erich-Schmid-Institut für Materialwissenschaft der Österreichischen Akademie der Wissenschaften
- Amity University
Abstract
We present a new phase-separated Zr-based metallic glass (MG) composition, free of toxic elements (Ni and Cu) prepared in a glass-forming system by alloying addition. The substitution of Y in Zr 70- xAl 12.5Fe 17.5Y x (x = 0–15 at.%) results in phase separation, giving rise to nano-amorphous domains in a glassy matrix. A homogeneous MG feature is observed for low concentrations of Y up to x = 5. Microstructure and thermal property analysis indicate that the glasses with x = 10 and 15 at.% Y exhibit a typical liquid phase separation-induced two-glassy phase (Zr-rich and Y-rich) with droplet-like microstructures (nano-amorphous domains). With increasing Y addition, the domain size increases. The microstructural evolution arising due to phase separation in these alloys is confirmed by a combination of transmission electron microscopy (TEM) and atom probe tomography (APT) analysis. The formation of nanometer-size Y-enriched clusters is confirmed by APT for x = 15.
Details
Originalsprache | Englisch |
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Aufsatznummer | 102104 |
Seitenumfang | 7 |
Fachzeitschrift | Materialia |
Jahrgang | 34.2024 |
Ausgabenummer | May |
Frühes Online-Datum | 24 Apr. 2024 |
DOIs | |
Status | Veröffentlicht - Mai 2024 |