Size Effect of Thermal Stability of Zr47Ti12.9Cu11Ni9.6Be16.7Nb2.8 Metallic Glass

被引：1

作者：

Wang Meiling ^{[1
]}

Hui Xidong ^{[2
]}

Feng Qiang ^{[1
,2
]}

Chen Guoliang ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Zr47Ti12.9Cu11Ni9.6Be16.7Nb2.8; metallic glasses; thermal stability; size effect; CRYSTALLIZATION; CU; NANOCRYSTALLIZATION; CRYSTAL; FLOW;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The bulk glassy cylinders with a diameter of 5 mm and the ribbons of 30 mu m in thickness of Zr47Ti12.9Cu11Ni9.6Be16.7Nb2.8 metallic glass were prepared by suction casting and melt spinning, respectively. The thermal stability parameters such as glass transition temperature T-g, onset crystallization temperature T-x, glass transition and crystallization activation energies E-g, E-x, etc., were measured by Differential Scanning Calorimetry and the Kissinger equation. The results reveal that the thinner ribbon sample has higher thermal stability and the metallic glass exhibits a "the smaller, the more stable" characteristic. The crystallization behaviors of different size samples also verify the above mentioned characteristic further: in the case of the crystallization of the bulk cylinder being lower than that of the glassy ribbon, the cylinder is crystallized more easily, and its crystallization microstructure is more integral than that of the glassy ribbon.

引用

页码：2217 / 2221

页数：5

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