| Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass | |
| Zhang, S. Y.1,2; Zhou, W. H.1,2; Song, L. J.3,4,5; Huo, J. T.3,4,5; Yao, J. H.1; Wang, J. Q.3,4,5; Li, Y.1 | |
| Corresponding Author | Li, Y.(liyi@imr.ac.cn) |
| 2023-01-15 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 223Pages:5 |
| Abstract | The mechanical properties of amorphous materials are closely related to their energy states (enthalpy). Usually, a higher energy state corresponds to larger plasticity and lower hardness. Here, we explore the correlation between the enthalpy and hardness of rejuvenated Au-based metallic glasses (MGs). We found that the rejuvenated MG with a high-energy state presents a hardness variation trend different from before, i.e. the hardness increases instead of keeping on decreasing with increasing enthalpy when the enthalpy is higher than an intermedia value. It is revealed that both the reactivations of 13- and alpha-relaxation are beneficial to increasing the enthalpy but show opposite effect on the hardness. This study shows that this decoupling may be originated from the beginning of the reactivation of alpha-relaxation. Our work provides new insights into designing MGs with excellent mechanical properties by rejuvenating relaxed MGs via the furthest reactivation of 13-relaxation and avoiding reactivation of alpha-relaxation. |
| Keyword | Metallic glass Rejuvenation ?-relaxation Differential scanning calorimetry 13-relaxation |
| Funding Organization | Shenyang Na-tional Laboratory for Materials Science ; National Natural Science Foundation of China |
| DOI | 10.1016/j.scriptamat.2022.115056 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Shenyang Na-tional Laboratory for Materials Science ; National Natural Science Foundation of China ; [52231006] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000877103100006 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/176750 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Y. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China 4.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techno, Ningbo 315201, Peoples R China 5.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, S. Y.,Zhou, W. H.,Song, L. J.,et al. Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass[J]. SCRIPTA MATERIALIA,2023,223:5. |
| APA | Zhang, S. Y..,Zhou, W. H..,Song, L. J..,Huo, J. T..,Yao, J. H..,...&Li, Y..(2023).Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass.SCRIPTA MATERIALIA,223,5. |
| MLA | Zhang, S. Y.,et al."Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass".SCRIPTA MATERIALIA 223(2023):5. |
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