Thermal Stability and Transformation-mediated Deformability of Cu-Zr-Al-Ni Bulk Metallic Glass Composite

被引：0
|
作者：
Meiting Xie [1 ]
Pengna Zhang [2 ]
Kaikai Song [3 ,4 ]
机构：
[1] School of Mechanical Engineering, Binzhou Polytechnic
[2] College of Math and Physics, Nanjing University of Information Science and Technology
[3] IFW Dresden, Institut für Komplexe Materialien
[4] TU Dresden, Institut für Werkstoffwissenschaft
来源：
JournalofMaterialsScience&Technology | 2013年 / 29卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Amorphous; Activation energy; Martensitic transformation; Mechanical properties;
D O I：
暂无
中图分类号：
TB331 [金属复合材料];
学科分类号：
0805 ; 080502 ;
摘要：
The glass-forming ability and the thermal stabilityof Cu45Zr45Al5Ni5 metallic glass were systematically investigated by the differential scanning calorimetry.The activation energies for the glass transition and the onset crystallization and the crystallization peak were calculated to be 255.1,308.7 and 311.5 kJ/mol,respectively,while the corresponding liquid fragility was determined to be 23.4.By controlling the casting process,Cu45Zr45Al5Ni5 bulk metallic glass composite with the presence of ductile B2 CuZr phase was fabricated.The composite shows a pronounced plastic strain of 6.8 0.05% with obvious work hardening,which results from the formation of multiple shear bands and the deformation-induced martensitic transformation.
引用
收藏
页码：868 / 872
页数：5
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