Design and characterization of novel Zr-Al-Fe-Y metallic glasses with nanoscale phase separation

被引：4

作者：

Singh, Devinder ^{[1
,2
]}

Ramasamy, Parthiban ^{[1
]}

Jelinek, Anna Sophie ^{[3
]}

Bhattacharya, Rahul ^{[1
]}

Chen, Zhuo ^{[1
]}

Fellner, Simon ^{[1
]}

Gammer, Christoph ^{[1
]}

Zhang, Zaoli ^{[1
]}

Eckert, Juergen ^{[1
]}

机构：

[1] Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria

[2] Amity Univ, Amity Sch Appl Sci, Lucknow 226028, India

[3] Univ Leoben, Dept Mat Sci, Franz Josef Str 18, A-8700 Leoben, Austria

来源：

MATERIALIA | 2024年 / 34卷

基金：

奥地利科学基金会;

关键词：

Metallic glasses; Zr-alloys; Phase separation; Microstructure; Nano -amorphous domain; MECHANICAL-BEHAVIOR; THERMAL-STABILITY; MICROSTRUCTURE; CRYSTALLIZATION; HETEROGENEITY; PLASTICITY; DIFFERENCE;

D O I：

10.1016/j.mtla.2024.102104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 Zr70-xAl12.5Fe17.5Yx (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 (Zrrich 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.

引用

页数：7

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