In a multi-principal-element VCoNi alloy, premature necking during Lüders banding has been harnessed to produce rapid dislocation multiplication, leading to both forest hardening and hardening induced by regions of local chemical order. The result is ductility of 20% and a yield strength of 2 GPa, during room-temperature and cryogenic deformation.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
Valiev, R. Z., Alexandrov, I. V., Zhu, Y. T. & Lowe, T. C. Paradox of strength and ductility in metals processed by severe plastic deformation. J. Mater. Res. 17, 5–8 (2002). This paper reports the yield strength–ductility paradox in ultrafine-grained metals.
Chen, X. F. et al. Direct observation of chemical short-range order in a medium-entropy alloy. Nature 592, 712–716 (2021). This paper reports the local chemical orders in the VCoNi alloy.
He, B. B. et al. High dislocation density-induced large ductility in deformed and partitioned steels. Science 357, 1029–1032 (2017). This paper reports the Lüders banding in an ultrahigh-strength steel.
Zhu, Y. T. & Wu, X. L. Heterostructured materials. Prog. Mater. Sci. 131, 101019 (2023). A review article that presents extra work hardening in heterostructured metals and alloys.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Xu, B. et al. Harnessing instability for work hardening in multi-principal element alloys. Nat. Mater. https://doi.org/10.1038/s41563-024-01871-7 (2024).
Rights and permissions
About this article
Cite this article
Synergistic work hardening by rapid multiplication of dislocations in a multi-principal-element alloy. Nat. Mater. (2024). https://doi.org/10.1038/s41563-024-01891-3
Published:
DOI: https://doi.org/10.1038/s41563-024-01891-3