| Crystallization Behaviour and Mechanical Properties of Zr65Cu18Ni9A18 Bulk Metallic Glass |
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| 引用本文： | M.Iqbal J.I.Akhter Haifeng ZHANG Zhuangqi HU. Crystallization Behaviour and Mechanical Properties of Zr65Cu18Ni9A18 Bulk Metallic Glass[J]. 材料科学技术学报, 2007, 23(5): 693-696 |
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| 作者姓名： | M.Iqbal J.I.Akhter Haifeng ZHANG Zhuangqi HU |
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| 作者单位： | [1]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, China [2]Physics Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan |
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| 基金项目： | Acknowledgements M. Iqbal is grateful to Institute of Metal Research, Chinese Academy of Sciences for Ph.D. scholarship. The National Natural Science Foundation of China （50471077） and the Ministry of Science and Technology of China （2006CB605201, 2005DFA50860） supported this work. M. Iqbal is also thankful to Pakistan Atomic Energy Commission for providing opportunity to carry out this research at IMR. Thanks are also due to Profs. W.S.Sun and W.Wei for their helps during the experimental part of the work. |
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| 摘 要： | Designing and synthesis of cost effective bulk metallic glasses （BMGs） has been of considerable interest during the last decade so that they can be made commercially viable. Among these, Zr-based BMGs have been reported extensively due to their attractive properties, An alloy having composition Zr65Cu18Ni9A18 was designed and synthesized using 2-3 N pure materials by Cu mould casting. The alloy was characterized by X- ray diffraction （XRD）, scanning electron microscopy （SEM）, energy dispersive X-ray spectroscopy （EDS） and high temperature differential scanning calorimetry （DSC）. Thermal parameters like supercooled liquid region △Tx, reduced glass transition temperature Trg, γ and δ parameters were evaluated. Mechanical properties like microhardness, nanohardness, elastic modulus and fracture strength were measured. The alloy showed wide supercooled liquid region of 129＋1 K with improved thermal stability. The alloy has considerable fracture strength along with fair amount of ductility.
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| 关 键 词： | 机械性能 晶体 金属 热加工 |
| 收稿时间： | 2006-11-16 |
| 修稿时间： | 2006-11-16 |
Crystallization Behaviour and Mechanical Properties of Zr65Cu18Ni9Al8 Bulk Metallic Glass |
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| M.Iqbal,J.I.Akhter,Haifeng ZHANG,Zhuangqi HU. Crystallization Behaviour and Mechanical Properties of Zr65Cu18Ni9Al8 Bulk Metallic Glass[J]. Journal of Materials Science & Technology, 2007, 23(5): 693-696 |
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| Authors: | M.Iqbal J.I.Akhter Haifeng ZHANG Zhuangqi HU |
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| Affiliation: | Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China... |
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| Abstract: | Designing and synthesis of cost effective bulk metallic glasses (BMGs) has been of considerable interest during the last decade so that they can be made commercially viable. Among these, Zr-based BMGs have been reported extensively due to their attractive properties. An alloy having composition Zr65Cu18Ni9Al8 was designed and synthesized using 2–3 N pure materials by Cu mould casting. The alloy was characterized by Xray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and high temperature differential scanning calorimetry (DSC). Thermal parameters like supercooled liquid region △Tx, reduced glass transition temperature Trg, γ and δ parameters were evaluated. Mechanical properties like microhardness, nanohardness, elastic modulus and fracture strength were measured. The alloy showed wide supercooled liquid region of 129±1 K with improved thermal stability. The alloy has considerable fracture strength along with fair amount of ductility. |
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| Keywords: | Zr-based bulk amorphous alloys Mechanical properties Glass-forming ability Thermal parameters |
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