Approaching the ideal elastic limit of metallic glasses
The ideal elastic limit is the upper bound to the stress and elastic strain a material can withstand. This intrinsic property has been widely studied for crystalline metals, both theoretically and experimentally. For metallic glasses, however, the ideal elastic limit remains poorly characterized and...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2013
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| Online Access: | http://hdl.handle.net/1721.1/82585 https://orcid.org/0000-0002-7841-8058 |
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| author | Tian, Lin Cheng, Yong-Qiang Shan, Zhi-Wei Li, Ju Wang, Cheng-Cai Han, Xiao-Dong Ma, Evan Sun, Jun, 1975- |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Tian, Lin Cheng, Yong-Qiang Shan, Zhi-Wei Li, Ju Wang, Cheng-Cai Han, Xiao-Dong Ma, Evan Sun, Jun, 1975- |
| author_sort | Tian, Lin |
| collection | MIT |
| description | The ideal elastic limit is the upper bound to the stress and elastic strain a material can withstand. This intrinsic property has been widely studied for crystalline metals, both theoretically and experimentally. For metallic glasses, however, the ideal elastic limit remains poorly characterized and understood. Here we show that the elastic strain limit and the corresponding strength of submicron-sized metallic glass specimens are about twice as high as the already impressive elastic limit observed in bulk metallic glass samples, in line with model predictions of the ideal elastic limit of metallic glasses. We achieve this by employing an in situ transmission electron microscope tensile deformation technique. Furthermore, we propose an alternative mechanism for the apparent 'work hardening' behaviour observed in the tensile stress–strain curves. |
| first_indexed | 2024-09-23T16:46:04Z |
| format | Article |
| id | mit-1721.1/82585 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:46:04Z |
| publishDate | 2013 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/825852023-02-26T02:26:27Z Approaching the ideal elastic limit of metallic glasses Tian, Lin Cheng, Yong-Qiang Shan, Zhi-Wei Li, Ju Wang, Cheng-Cai Han, Xiao-Dong Ma, Evan Sun, Jun, 1975- Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Li, Ju The ideal elastic limit is the upper bound to the stress and elastic strain a material can withstand. This intrinsic property has been widely studied for crystalline metals, both theoretically and experimentally. For metallic glasses, however, the ideal elastic limit remains poorly characterized and understood. Here we show that the elastic strain limit and the corresponding strength of submicron-sized metallic glass specimens are about twice as high as the already impressive elastic limit observed in bulk metallic glass samples, in line with model predictions of the ideal elastic limit of metallic glasses. We achieve this by employing an in situ transmission electron microscope tensile deformation technique. Furthermore, we propose an alternative mechanism for the apparent 'work hardening' behaviour observed in the tensile stress–strain curves. National Science Foundation (U.S.) (CMMI-0728069) National Science Foundation (U.S.) (DMR-1008104) National Science Foundation (U.S.) (DMR-1120901) United States. Air Force Office of Scientific Research (FA9550-08-1-0325) 2013-11-25T19:23:44Z 2013-11-25T19:23:44Z 2012-01 2011-08 Article http://purl.org/eprint/type/JournalArticle 2041-1723 http://hdl.handle.net/1721.1/82585 Tian, Lin, Yong-Qiang Cheng, Zhi-Wei Shan, Ju Li, Cheng-Cai Wang, Xiao-Dong Han, Jun Sun, and Evan Ma. “Approaching the ideal elastic limit of metallic glasses.” Nature Communications 3 (January 3, 2012): 609. © 2012 Nature Publishing Group, a division of Macmillan Publishers Limited https://orcid.org/0000-0002-7841-8058 en_US http://dx.doi.org/10.1038/ncomms1619 Nature Communications http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Nature Publishing Group PMC |
| spellingShingle | Tian, Lin Cheng, Yong-Qiang Shan, Zhi-Wei Li, Ju Wang, Cheng-Cai Han, Xiao-Dong Ma, Evan Sun, Jun, 1975- Approaching the ideal elastic limit of metallic glasses |
| title | Approaching the ideal elastic limit of metallic glasses |
| title_full | Approaching the ideal elastic limit of metallic glasses |
| title_fullStr | Approaching the ideal elastic limit of metallic glasses |
| title_full_unstemmed | Approaching the ideal elastic limit of metallic glasses |
| title_short | Approaching the ideal elastic limit of metallic glasses |
| title_sort | approaching the ideal elastic limit of metallic glasses |
| url | http://hdl.handle.net/1721.1/82585 https://orcid.org/0000-0002-7841-8058 |
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