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Preparation of Al72Ni8Ti8Zr6Nb3Y3 amorphous powders and bulk materials

文献类型：期刊论文

作者Wu, Yu; Wang, Xin-fu; Han, Fu-sheng
刊名INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
出版日期2016-10-01
卷号23期号:10页码:1187-1195
关键词Amorphous Alloys Mechanical Alloying Thermal Stability Pressing Vickers Hardness
DOI10.1007/s12613-016-1338-5
文献子类Article
英文摘要Amorphous Al72Ni8Ti8Zr6Nb3Y3 powders were successfully fabricated by mechanical alloying. The microstructure, glass-forming ability, and crystallization behavior of amorphous Al72Ni8Ti8Zr6Nb3Y3 powders were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), and differential scanning calorimetry (DSC). The isothermal crystallization kinetics was analyzed by the Johnson-Mehl-Avrami equation. In the results, the supercooled liquid region of the amorphous alloy is as high as 81 K, as determined by non-isothermal DSC curves. The activation energy for crystallization is as high as 312.6 kJ center dot mol(-1) obtained by Kissinger and Ozawa analyses. The values of Avrami exponent (n) imply that the crystallization is dominated by interface-controlled three-dimensional growth in the early stage and the end stage and by diffusion-controlled two- or three-dimensional growth in the middle stage. In addition, the amorphous Al72Ni8Ti8Zr6Nb3Y3 powders were sintered under 2 GPa at temperatures of 673 K and 723 K. The results show that the Vickers hardness of the compacted powders is as high as Hv 1215.
WOS关键词GLASS-FORMING ABILITY ; METALLIC GLASSES ; CRYSTALLIZATION KINETICS ; THERMAL-STABILITY ; MECHANICAL-PROPERTIES ; ALLOY ; CONSOLIDATION ; BEHAVIOR ; SYSTEM ; MATRIX
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000385203400009
资助机构National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167) ; National Natural Science Foundation of China(51371167)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/30172]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Yu,Wang, Xin-fu,Han, Fu-sheng. Preparation of Al72Ni8Ti8Zr6Nb3Y3 amorphous powders and bulk materials[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2016,23(10):1187-1195.
APA Wu, Yu,Wang, Xin-fu,&Han, Fu-sheng.(2016).Preparation of Al72Ni8Ti8Zr6Nb3Y3 amorphous powders and bulk materials.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,23(10),1187-1195.
MLA Wu, Yu,et al."Preparation of Al72Ni8Ti8Zr6Nb3Y3 amorphous powders and bulk materials".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 23.10(2016):1187-1195.

入库方式： OAI收割

来源：合肥物质科学研究院

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