Enhanced mechanical properties of Zr-Cu-Al-Ni bulk amorphous alloys by Ag and O doping

被引：0

作者：

Xie, Shenghui ^{[1
]}

Zhao, Jianxin ^{[1
]}

Li, Song ^{[2
]}

Su, Jiaxin ^{[1
]}

机构：

[1] College of Materials Science and Engineering, Shenzhen University, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics and Shenzhen Key Laboratory of Special Functional Materials, Shenzhen,518060, China

[2] Powder Metallurgy Research Institute, Central South University, Changsha,410083, China

来源：

Journal of Alloys and Compounds | 2023年 / 957卷

关键词：

Microstructure;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The microstructure and properties of amorphous alloys are very sensitive to oxygen content, so the extremely stringent atmospheric condition is required for their production, which also significantly increases the production costs. In this work, the strength and plasticity of Zr52Cu23Ni10.5Al14.5 amorphous alloy rods with a diameter of 2 mm are severely deteriorated after the addition of 0.15 at% O due to the formation of micrometer scale crystalline phases in glassy matrix. In contrast, the combined addition of 1 at% Ag and 0.15 at% O can substantially improve its fracture strength and plasticity. This synergy effect is mainly attributed to the fact that minor Ag addition can enhance the uniform distribution of nanocrystalline phases and refine their sizes. The present results can provide ideas for the industrial production and large-scale commercial applications of amorphous alloys in the future. © 2023

引用

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