Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis
We demonstrate a novel materials design approach to achieve unprecedented properties by utilizing nanoscale chemo-mechanical coupling. In particular, by using computer simulations we demon- strate how to engineer ultralow modulus (12 GPa), nearly hysteresis- free, and linear super-elastic metals wit...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Royal Society of Chemistry (RSC)
2019
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| Online Access: | http://hdl.handle.net/1721.1/120306 https://orcid.org/0000-0002-7841-8058 |
| _version_ | 1826200472067768320 |
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| author | Zhu, Jiaming Gao, Yipeng Li, Ju Zhang, Tong-Yi Wang, Yunzhi Wang, Dong, 1975- |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Zhu, Jiaming Gao, Yipeng Li, Ju Zhang, Tong-Yi Wang, Yunzhi Wang, Dong, 1975- |
| author_sort | Zhu, Jiaming |
| collection | MIT |
| description | We demonstrate a novel materials design approach to achieve unprecedented properties by utilizing nanoscale chemo-mechanical coupling. In particular, by using computer simulations we demon- strate how to engineer ultralow modulus (12 GPa), nearly hysteresis- free, and linear super-elastic metals with a giant elastic strain limit (2.7%) by creating appropriate concentration modulations (CMs) at the nanoscale in the parent phase and by pre-straining to regulate the stress-induced martensitic transformation (MT). The nanoscale CMs created via spinodal decomposition produce corresponding phase stability modulations, suppress autocatalysis in nucleation, impose nano-confinements on growth, and hinder long-range ordering of transformation strain during the MT, which changes the otherwise sharp first-order transition into a smeared, macroscopically conti- nuous transition over a large stress range. The pre-straining generates retained martensitic particles that are stable at the test temperature after unloading and act as operational nuclei in subsequent load cycles, eliminating the stress–strain hysteresis and offering an ultra- low apparent Young’s modulus. Materials with a high strength and an ultralow apparent Young’s modulus have great potential for applica- tion in orthopaedic implants. |
| first_indexed | 2024-09-23T11:37:01Z |
| format | Article |
| id | mit-1721.1/120306 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:37:01Z |
| publishDate | 2019 |
| publisher | Royal Society of Chemistry (RSC) |
| record_format | dspace |
| spelling | mit-1721.1/1203062023-02-26T03:40:45Z Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis Zhu, Jiaming Gao, Yipeng Li, Ju Zhang, Tong-Yi Wang, Yunzhi Wang, Dong, 1975- Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Li, Ju Wang, Yunzhi We demonstrate a novel materials design approach to achieve unprecedented properties by utilizing nanoscale chemo-mechanical coupling. In particular, by using computer simulations we demon- strate how to engineer ultralow modulus (12 GPa), nearly hysteresis- free, and linear super-elastic metals with a giant elastic strain limit (2.7%) by creating appropriate concentration modulations (CMs) at the nanoscale in the parent phase and by pre-straining to regulate the stress-induced martensitic transformation (MT). The nanoscale CMs created via spinodal decomposition produce corresponding phase stability modulations, suppress autocatalysis in nucleation, impose nano-confinements on growth, and hinder long-range ordering of transformation strain during the MT, which changes the otherwise sharp first-order transition into a smeared, macroscopically conti- nuous transition over a large stress range. The pre-straining generates retained martensitic particles that are stable at the test temperature after unloading and act as operational nuclei in subsequent load cycles, eliminating the stress–strain hysteresis and offering an ultra- low apparent Young’s modulus. Materials with a high strength and an ultralow apparent Young’s modulus have great potential for applica- tion in orthopaedic implants. National Science Foundation (U.S.) (Grant No. DMR-1410322) United States. Department of Energy (Grant No. DE-SC0001258) National Science Foundation (U.S.) (Grant No. DMR-1410636) State Administration of Foreign Experts Affairs (China) (111 project (No. D16002)) 2019-02-11T12:53:01Z 2019-02-11T12:53:01Z 2018-12 2018-09 Article http://purl.org/eprint/type/JournalArticle 2051-6347 2051-6355 http://hdl.handle.net/1721.1/120306 Zhu, Jiaming, Yipeng Gao, Dong Wang, Ju Li, Tong-Yi Zhang, and Yunzhi Wang. “Making Metals Linear Super-Elastic with Ultralow Modulus and Nearly Zero Hysteresis.” Materials Horizons (2019). https://orcid.org/0000-0002-7841-8058 en_US http://dx.doi.org/10.1039/C8MH01141A Materials Horizons Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Royal Society of Chemistry (RSC) Royal Society of Chemistry (RSC) |
| spellingShingle | Zhu, Jiaming Gao, Yipeng Li, Ju Zhang, Tong-Yi Wang, Yunzhi Wang, Dong, 1975- Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis |
| title | Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis |
| title_full | Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis |
| title_fullStr | Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis |
| title_full_unstemmed | Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis |
| title_short | Making metals linear super-elastic with ultralow modulus and nearly zero hysteresis |
| title_sort | making metals linear super elastic with ultralow modulus and nearly zero hysteresis |
| url | http://hdl.handle.net/1721.1/120306 https://orcid.org/0000-0002-7841-8058 |
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