| Dynamic mechanical response of ZrCu-based bulk metallic glasses | |
| Tao, K.1; Qiao, J. C.1,2; Zhang, L.3; Pelletier, J. M.4 | |
| Corresponding Author | Qiao, J. C.(qjczy@nwpu.edu.cn) ; Pelletier, J. M.(jean-marc.pelletier@insa-lyon.fr) |
| 2021-12-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
 |
| ISSN | 0020-7403 |
| Volume | 211Pages:15 |
| Abstract | The thermal stability and the dynamic mechanical relaxation behavior of (Zr50Cu40Al10)(100-x)Dy-x (at.%) (x = 0 or 2) metallic glasses were investigated by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). In the case of the (Zr50Cu40Al10)(100-x)Dy-x (x = 0 or 2) metallic glasses, atomic mobility increases by introduction of the Dy element. The activation energy of the the main a relaxation process and fragility index were discussed according to the DMA measurements. With the help of the time-temperature superposition (TTS) principle, the master curves of the model alloys were established, the Kohlrausch-Williams-Watts (KWW) function and quasi-point defects (QPD) theory were used to descirbe the master curves of the metallic glasses. The characteristic parameters related to microstructural heterogeneity in the KWW equation and the QPD model, Kohlrausch exponent beta(KWW) and the correlation factor chi were evaluated. In parallel, the elastic, viscoelastic and viscoplastic responses of the model alloys have been analyzed based on the DMA results. Our investigations demonstrated that introduction of the Dy increases the structure heterogeneity of the (Zr50Cu40Al10)(100-x)Dy-x (x = 0 or 2) glassy system, which plays an important role in tailoring the dynamic relaxation behavior and mechanical properties of the metallic glasses. |
| Keyword | Metallic glass Mechanical relaxation process Microstructure heterogeneity Quasi-point theory Physical aging |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Prov-ince ; Natural Science Foundation of Chongqing |
| DOI | 10.1016/j.ijmecsci.2021.106770 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51971178] ; National Natural Science Foundation of China (NSFC)[52171164] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Prov-ince[2021JC-12] ; Natural Science Foundation of Chongqing[cstc2020jcyj-jqX0001] |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| WOS ID | WOS:000696620900001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166960 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Qiao, J. C.; Pelletier, J. M. |
| Affiliation | 1.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China 2.NPU, Chongqing Sci & Technol Innovat Ctr, Chongqing 401135, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Univ Lyon, INSA Lyon, UMR CNRS5510, MATEIS, Bat B Pascal, F-69621 Villeurbanne, France |
| Recommended Citation GB/T 7714 | Tao, K.,Qiao, J. C.,Zhang, L.,et al. Dynamic mechanical response of ZrCu-based bulk metallic glasses[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2021,211:15. |
| APA | Tao, K.,Qiao, J. C.,Zhang, L.,&Pelletier, J. M..(2021).Dynamic mechanical response of ZrCu-based bulk metallic glasses.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,211,15. |
| MLA | Tao, K.,et al."Dynamic mechanical response of ZrCu-based bulk metallic glasses".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 211(2021):15. |
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