The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix
When a transformable B2 precipitate is embedded in an amorphous matrix, it is often experimentally observed that the crystalline-amorphous interface not only serves as an initiation site for the martensitic transformation due to local stress concentrations, but also as an inhibitor to stabilize the...
| Main Authors: | , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/173750 |
| _version_ | 1826112807242825728 |
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| author | Fu, Xiaoling Lin, Yujun Zhu, Mixun Wang, Kai Wu, Jiaqing Tong, Xing Song, Wenli Tan, Ming Jen Yang, Yuanzheng Shen, Jun Wang, Gang Shek, Chan Hung Ritchie, Robert O. |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Fu, Xiaoling Lin, Yujun Zhu, Mixun Wang, Kai Wu, Jiaqing Tong, Xing Song, Wenli Tan, Ming Jen Yang, Yuanzheng Shen, Jun Wang, Gang Shek, Chan Hung Ritchie, Robert O. |
| author_sort | Fu, Xiaoling |
| collection | NTU |
| description | When a transformable B2 precipitate is embedded in an amorphous matrix, it is often experimentally observed that the crystalline-amorphous interface not only serves as an initiation site for the martensitic transformation due to local stress concentrations, but also as an inhibitor to stabilize the transformation, the latter being attributed to the “confinement effect” exerted by the amorphous matrix, according to the Eshelby solution. These two seemingly incongruous factors are examined in this study using molecular dynamics simulations from an atomic interaction perspective. An innate strain gradient in the vicinity of the crystalline-amorphous interface is identified. The actual interface, the compressive/dilatative transition, and the interfacial maximum strain are investigated to differentiate from the conventional “interface” located within a distance of a few nanometers. Our innate interfacial elastic strain field model is applicable for the design of materials with a higher degree of martensitic transformation and controllable stress concentration, even in cryogenic environments. |
| first_indexed | 2024-10-01T03:13:08Z |
| format | Journal Article |
| id | ntu-10356/173750 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:13:08Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1737502024-03-02T16:47:52Z The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix Fu, Xiaoling Lin, Yujun Zhu, Mixun Wang, Kai Wu, Jiaqing Tong, Xing Song, Wenli Tan, Ming Jen Yang, Yuanzheng Shen, Jun Wang, Gang Shek, Chan Hung Ritchie, Robert O. School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Engineering Linear transformations Molecular dynamics When a transformable B2 precipitate is embedded in an amorphous matrix, it is often experimentally observed that the crystalline-amorphous interface not only serves as an initiation site for the martensitic transformation due to local stress concentrations, but also as an inhibitor to stabilize the transformation, the latter being attributed to the “confinement effect” exerted by the amorphous matrix, according to the Eshelby solution. These two seemingly incongruous factors are examined in this study using molecular dynamics simulations from an atomic interaction perspective. An innate strain gradient in the vicinity of the crystalline-amorphous interface is identified. The actual interface, the compressive/dilatative transition, and the interfacial maximum strain are investigated to differentiate from the conventional “interface” located within a distance of a few nanometers. Our innate interfacial elastic strain field model is applicable for the design of materials with a higher degree of martensitic transformation and controllable stress concentration, even in cryogenic environments. Published version The work was supported by the National Natural Science Foundation of China (No. 51601019, 52001184, 52071089, 52071217); the Guangdong Major Project of Basic and Applied Basic Research (Grant No.2019B030302010); the Guangdong Basic and Applied Basic Research Foundation (No. 2022A1515010233, 2019A1515110472). 2024-02-26T06:47:28Z 2024-02-26T06:47:28Z 2023 Journal Article Fu, X., Lin, Y., Zhu, M., Wang, K., Wu, J., Tong, X., Song, W., Tan, M. J., Yang, Y., Shen, J., Wang, G., Shek, C. H. & Ritchie, R. O. (2023). The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix. Npj Computational Materials, 9(1), 226-. https://dx.doi.org/10.1038/s41524-023-01182-6 2057-3960 https://hdl.handle.net/10356/173750 10.1038/s41524-023-01182-6 2-s2.0-85179844943 1 9 226 en npj Computational Materials © 2023 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http:// creativecommons.org/licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering Linear transformations Molecular dynamics Fu, Xiaoling Lin, Yujun Zhu, Mixun Wang, Kai Wu, Jiaqing Tong, Xing Song, Wenli Tan, Ming Jen Yang, Yuanzheng Shen, Jun Wang, Gang Shek, Chan Hung Ritchie, Robert O. The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix |
| title | The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix |
| title_full | The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix |
| title_fullStr | The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix |
| title_full_unstemmed | The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix |
| title_short | The innate interfacial elastic strain field of a transformable B2 precipitate embedded in an amorphous matrix |
| title_sort | innate interfacial elastic strain field of a transformable b2 precipitate embedded in an amorphous matrix |
| topic | Engineering Linear transformations Molecular dynamics |
| url | https://hdl.handle.net/10356/173750 |
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