In Situ Scattering Studies of Crystallization Kinetics in a Phase-Separated Zr–Cu–Fe–Al Bulk Metallic Glass

被引：0

作者：

Sinan Liu ^{[1
]}

Jiacheng Ge ^{[1
]}

Huiqaing Ying ^{[1
]}

Chenyu Lu ^{[2
]}

Dong Ma ^{[3
,4
]}

XunLi Wang ^{[5
,6
]}

Xiaobing Zuo ^{[7
]}

Yang Ren ^{[7
]}

Tao Feng ^{[8
]}

Jun Shen ^{[9
]}

Horst Hahn ^{[8
,10
]}

Si Lan ^{[8
,6
]}

机构：

[1] Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering , Nanjing University of Science and Technology

[2] Department of Physics , City University of Hong Kong

[3] Neutron Sciences Platform,Songshan Lake Materials Laboratory

[4] Neutron Sciences Directorate , Oak Ridge National Laboratory , Bethel Valley Road

[5] Department of Physics , City University of Hong Kong, Tat Chee Avenue

[6] Center of Neutron Scattering , City University of Hong Kong Shenzhen Research Institute

[7] X-Ray Science Division , Argonne National Laboratory

[8] Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering , Nanjing University of Science and Technology, Xiaolingwei Avenue

[9] College of Mechatronics and Control Engineering , Shenzhen University

[10] Institute for Nanotechnology , Karlsruhe Institute of Technology

来源：

Acta Metallurgica Sinica(English Letters) | 2022年 / 35卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TG139.8 [];

学科分类号：

080502 ;

摘要：

Thermal stability and the crystallization kinetics of a phase-separated Zr–Cu–Fe–Al bulk metallic glass were investigated using in situ high-energy synchrotron X-ray and neutron diff raction, as well as small-angle synchrotron X-ray scattering. It was revealed that this glass with excellent glass-forming ability possesses a two-step crystallization behavior. The crystalline products and their evolution sequence are more complicated than a homogeneous Zr–Cu–Al glass with average glass-forming ability. The experimental results indicate that a fi nely distributed nanometer-sized cubic Zr2 Cu phase forms fi rst and then transforms to a tetragonal Zr2 Cu phase, while the matrix transforms to an orthorhombic Zr3 Fe phase. The strength of the Zr–Cu–Fe–Al composite containing cubic Zr2 Cu phase and glass matrix increases, and the plasticity also improves compared to the as-cast Zr–Cu–Fe–Al bulk metallic glass. Our results suggest that the formation of multiple and complex crystalline products would be the characteristics of the Zr–Cu–Fe–Al glass with better glass-forming ability. Our study may shed light on the synthesis of bulk-sized glass–nanocrystals composites of high strength and good plasticity.

引用

页码：103 / 114

页数：12

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