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Enhanced strength–ductility synergy in ultrafine-grained eutectic high-entropy alloys by inheriting microstructural lamellae
Open accessAbstract
Realizing improved strength–ductility synergy in eutectic alloys acting as in situ composite materials remains a challenge in conventional eutectic systems, which is why eutectic high-entropy alloys (EHEAs), a newly-emerging multi-principal-element eutectic category, may offer wider in situ composite possibilities. Here, we use an AlCoCrFeNi 2.1 EHEA to engineer an ultrafine-grained duplex microstructure that deliberately inherits its composite lamellar nature by tailored thermo-mechanical processing to achieve property combinations which are not accessible to previously-reported reinforcement methodologies. The as-prepared samples exhibit hierarchically-structural heterogeneity due to phase decomposition, and the improved mechanical response during deformation is attributed to both a two-hierarchical constraint effect and a self-generated microcrack-arresting mechanism. This work provides a pathway for strengthening eutectic alloys and widens the design toolbox for high-performance materials based upon EHEAs.
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Cited by
Strong yet ductile nanolamellar high-entropy alloys by additive manufacturing
Ren, J., Zhang, Y., Zhao, D., Chen, Y., Guan, S., Liu, Y., Liu, L., Peng, S., Kong, F., Poplawsky, J. D., et al. (2022) · Nature · doi:10.1038/s41586-022-04914-8 · Cited by 747
Hierarchical crack buffering triples ductility in eutectic herringbone high-entropy alloys
Shi, P., Li, R., Li, Y., Wen, Y., Zhong, Y., Ren, W., Shen, Z., Zheng, T., Peng, J., Liang, X., et al. (2021) · Science · doi:10.1126/science.abf6986 · Cited by 678
Self-citationFeng, G., Ning, F., Song, J., Shang, H., Zhang, K., Ding, Z., Gao, P., Chu, W., & Xia, D. (2021) · Journal of the American Chemical Society · doi:10.1021/jacs.1c07643 · Cited by 560
High-entropy alloys in electrocatalysis: from fundamentals to applications
Ren, J.-T., Chen, L., Wang, H.-Y., & Yuan, Z.-Y. (2023) · Chemical Society Reviews · doi:10.1039/d3cs00557g · Cited by 551
About metastable cellular structure in additively manufactured austenitic stainless steels
Kong, D., Dong, C., Wei, S., Ni, X., Zhang, L., Li, R., Wang, L., Man, C., & Li, X. (2021) · Additive Manufacturing · doi:10.1016/j.addma.2020.101804 · Cited by 528
Metadata
- Authors
- Shi, P., Ren, W., Zheng, T., Ren, Z., Hou, X., Peng, J., Hu, P., Gao, Y., Zhong, Y., & Liaw, P. K.
- Venue
- Nature Communications
- Published
- 2019-01-30
- Volume
- 10
- Issue
- 1
- Pages
- 489-489
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2911870840
- Cited by
- 954
- References
- 0
- FWCI
- 48.01
- Type
- journal article
- Language
- en
- Open access
- gold
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- CoChat. (2026). Citation check: Enhanced strength–ductility synergy in ultrafine-grained eutectic high-entropy alloys by inheriting microstructural lamellae. https://app.cochat.ai/papers/10.1038/s41467-019-08460-2
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- Shi, P., Ren, W., Zheng, T., Ren, Z., Hou, X., Peng, J., Hu, P., Gao, Y., Zhong, Y., & Liaw, P. K. (2019). Enhanced strength–ductility synergy in ultrafine-grained eutectic high-entropy alloys by inheriting microstructural lamellae. Nature Communications. https://doi.org/10.1038/s41467-019-08460-2
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