The compositional influence on the formation of a clustered glassy structure was examined for Zr-based metallic glasses with multicomponent compositions of Zr₆₀Al₁₀Co_30-x (Ni, Cu, Ag)_x (x = 5–20, at.%) and Zr₅₅Al₁₀Co₁₀Ni₁₀Cu₁₀Ag₅ subjected to long-time annealing at the temperatures above the first-stage crystallization peak temperature (T_p1). The glassy alloys are characterized as two different groups, namely, (1) the irregular bulk glassy type with positive heat of mixing among the solute elements, and (2) the pseudo-high entropy alloys consisting of one major element and four solute elements or more with equiatomic or nearly equiatomic compositions. As-spun ribbons of the irregular type Zr–Al–Co–Ag glasses with 5 at.% and 10 at.% Ag exhibit two exothermic peaks with a wide temperature interval of 220–240 K. Besides, the glassy phase remains unchanged, as seen in the high-resolution TEM images, even after annealing for 1.8–21.6 ks at the temperatures well above T_p1, indicating the formation of the clustered glassy phase. However, no clustered glass is recognized for the other alloys and hence the suitable contents of Co and Ag elements play a dominant role in the formation of the clustered glass. The clustered glassy phase was also formed for Zr₆₀Al₁₀Co₂₅Ag₅ and Zr₆₀Al₁₀Co₂₀Ag₁₀ alloy rods of 1.5 mm in diameter. The clustered glasses exhibit much higher Vickers hardness of ~700 exceeding those for the other crystallized alloys. The formation criteria of the clustered glass with higher thermal stability, hardness and glass-forming ability are useful for future synthesis of an elevated-temperature strength metallic glass.

对于具有Zr ₆₀ Al ₁₀ Co _30-x（Ni，Cu，Ag）_x（x = 5-20，at。％）的多组分组成的Zr基金属玻璃，检查了其对簇状玻璃结构形成的成分影响。 Zr ₅₅ Al ₁₀ Co ₁₀ Ni ₁₀ Cu ₁₀ Ag ₅在高于第一阶段结晶峰温度（T _p1）。这些玻璃态合金的特征是分为两个不同的组，即（1）溶质元素之间具有正混合热的不规则块状玻璃态，以及（2）由一个主要元素和四个溶质元素组成的假高熵合金或等原子或接近等原子的成分。含5at。％和10at。％Ag的不规则Zr-Al-Co-Ag玻璃的初生碳带表现出两个放热峰，温度区间为220-240K。此外，玻璃态保持不变，如高分辨率TEM图像所示，即使在远高于T _p1的温度下退火1.8–21.6 ks之后，表明形成簇状玻璃相。然而，对于其他合金，没有团簇玻璃被识别，因此，Co和Ag元素的合适含量在团簇玻璃的形成中起主要作用。Zr ₆₀ Al ₁₀ Co ₂₅ Ag ₅和Zr ₆₀ Al ₁₀ Co ₂₀ Ag ₁₀的团簇玻璃相也形成了。直径为1.5毫米的合金棒。簇状玻璃表现出的维氏硬度比其他结晶合金要高出约700倍。具有更高的热稳定性，硬度和玻璃形成能力的团簇玻璃的形成标准对于将来合成高温强度金属玻璃是有用的。