Overcoming strength-ductility tradeoff with high pressure thermal treatment
Conventional material processing approaches often achieve strengthening of materials at the cost of reduced ductility. Here, we show that high-pressure and high-temperature (HPHT) treatment can help overcome the strength-ductility trade-off in structural materials. We report an initially strong-yet-...
| 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/10356/179591 |
| _version_ | 1811690600146141184 |
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| author | Tang, Yao Wang, Haikuo Ouyang, Xiaoping Wang, Chao Huang, Qishan Zhao, Qingkun Liu, Xiaochun Zhu, Qi Hou, Zhiqiang Wu, Jiakun Zhang, Zhicai Li, Hao Yang, Yikan Yang, Wei Gao, Huajian Zhou, Haofei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Tang, Yao Wang, Haikuo Ouyang, Xiaoping Wang, Chao Huang, Qishan Zhao, Qingkun Liu, Xiaochun Zhu, Qi Hou, Zhiqiang Wu, Jiakun Zhang, Zhicai Li, Hao Yang, Yikan Yang, Wei Gao, Huajian Zhou, Haofei |
| author_sort | Tang, Yao |
| collection | NTU |
| description | Conventional material processing approaches often achieve strengthening of materials at the cost of reduced ductility. Here, we show that high-pressure and high-temperature (HPHT) treatment can help overcome the strength-ductility trade-off in structural materials. We report an initially strong-yet-brittle eutectic high entropy alloy simultaneously doubling its strength to 1150 MPa and its tensile ductility to 36% after the HPHT treatment. Such strength-ductility synergy is attributed to the HPHT-induced formation of a hierarchically patterned microstructure with coherent interfaces, which promotes multiple deformation mechanisms, including dislocations, stacking faults, microbands and deformation twins, at multiple length scales. More importantly, the HPHT-induced microstructure helps relieve stress concentration at the interfaces, thereby arresting interfacial cracking commonly observed in traditional eutectic high entropy alloys. These findings suggest a new direction of research in employing HPHT techniques to help develop next generation structural materials. |
| first_indexed | 2024-10-01T06:06:34Z |
| format | Journal Article |
| id | ntu-10356/179591 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:06:34Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1795912024-08-17T16:48:25Z Overcoming strength-ductility tradeoff with high pressure thermal treatment Tang, Yao Wang, Haikuo Ouyang, Xiaoping Wang, Chao Huang, Qishan Zhao, Qingkun Liu, Xiaochun Zhu, Qi Hou, Zhiqiang Wu, Jiakun Zhang, Zhicai Li, Hao Yang, Yikan Yang, Wei Gao, Huajian Zhou, Haofei School of Mechanical and Aerospace Engineering Institute of High Performance Computing, A*STAR Engineering Thermotherapy Structure analysis Conventional material processing approaches often achieve strengthening of materials at the cost of reduced ductility. Here, we show that high-pressure and high-temperature (HPHT) treatment can help overcome the strength-ductility trade-off in structural materials. We report an initially strong-yet-brittle eutectic high entropy alloy simultaneously doubling its strength to 1150 MPa and its tensile ductility to 36% after the HPHT treatment. Such strength-ductility synergy is attributed to the HPHT-induced formation of a hierarchically patterned microstructure with coherent interfaces, which promotes multiple deformation mechanisms, including dislocations, stacking faults, microbands and deformation twins, at multiple length scales. More importantly, the HPHT-induced microstructure helps relieve stress concentration at the interfaces, thereby arresting interfacial cracking commonly observed in traditional eutectic high entropy alloys. These findings suggest a new direction of research in employing HPHT techniques to help develop next generation structural materials. Agency for Science, Technology and Research (A*STAR) Nanyang Technological University Published version Y.T. acknowledges financial support from the National Natural Science Foundation of China (12202381) and China Postdoctoral Science Foundation (2022M712758). H.Z. acknowledges financial support from the National Natural Science Foundation of China (12222210, 12172324) and Zhejiang University K. P. Chao’s High Technology Development Foundation. H.W. acknowledges financial support from the National Natural Science Foundation of China (52073254). H.G. acknowledges a start-up grant from Nanyang Technological University and Agency for Science, Technology and Research (A*STAR). 2024-08-12T06:24:44Z 2024-08-12T06:24:44Z 2024 Journal Article Tang, Y., Wang, H., Ouyang, X., Wang, C., Huang, Q., Zhao, Q., Liu, X., Zhu, Q., Hou, Z., Wu, J., Zhang, Z., Li, H., Yang, Y., Yang, W., Gao, H. & Zhou, H. (2024). Overcoming strength-ductility tradeoff with high pressure thermal treatment. Nature Communications, 15(1), 3932-. https://dx.doi.org/10.1038/s41467-024-48435-6 2041-1723 https://hdl.handle.net/10356/179591 10.1038/s41467-024-48435-6 38729936 2-s2.0-85192458320 1 15 3932 en NTU SUG Nature Communications © 2024 The Author(s). Open Access. 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/ licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering Thermotherapy Structure analysis Tang, Yao Wang, Haikuo Ouyang, Xiaoping Wang, Chao Huang, Qishan Zhao, Qingkun Liu, Xiaochun Zhu, Qi Hou, Zhiqiang Wu, Jiakun Zhang, Zhicai Li, Hao Yang, Yikan Yang, Wei Gao, Huajian Zhou, Haofei Overcoming strength-ductility tradeoff with high pressure thermal treatment |
| title | Overcoming strength-ductility tradeoff with high pressure thermal treatment |
| title_full | Overcoming strength-ductility tradeoff with high pressure thermal treatment |
| title_fullStr | Overcoming strength-ductility tradeoff with high pressure thermal treatment |
| title_full_unstemmed | Overcoming strength-ductility tradeoff with high pressure thermal treatment |
| title_short | Overcoming strength-ductility tradeoff with high pressure thermal treatment |
| title_sort | overcoming strength ductility tradeoff with high pressure thermal treatment |
| topic | Engineering Thermotherapy Structure analysis |
| url | https://hdl.handle.net/10356/179591 |
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