Ultrastrong yet ductile additively manufactured multicomponent alloy-based composite strengthened by triple nanoprecipitates
A high-performance multicomponent alloy composite was fabricated through laser powder bed fusion (L-PBF) using a blended powder strategy followed by aging treatment. The resulting material exhibits an exceptional strength–ductility synergy, achieving a tensile strength of ∼1700MPa and total elongation of ∼12%. Rapid solidification during L-PBF refined in-situ nano-carbides/borides, while subsequent aging induced dense coherent L12 nanoprecipitates. The triple nanoparticles (Cr2B, TiC and L12) provide synergistic strengthening, and coherent L12/matrix interfaces help maintain ductility by alleviating stress concentration. This approach integrates in-situ precipitation during additive manufacturing with post-heat treatment to achieve high-performance metal matrix composites.
Authors
- Ruiguang Chen (ORCID: https://orcid.org/0000-0002-7266-3781)
- Shuo Qu (ORCID: https://orcid.org/0000-0001-7152-5806)
- Boxuan Cao (ORCID: https://orcid.org/0000-0001-8221-1749)
- Pengkun Guo
- Zhe Yang (ORCID: https://orcid.org/0000-0002-0695-9015)
- Yunfeng Jia (ORCID: https://orcid.org/0009-0008-2630-0008)
- Xu Song (ORCID: https://orcid.org/0000-0001-9811-9883)
- Suzhu Yu (ORCID: https://orcid.org/0000-0002-2230-0886)
- Rongpei Shi (ORCID: https://orcid.org/0000-0002-5007-4249)
- Weijian Zhang (ORCID: https://orcid.org/0000-0002-3267-6131)
- Jun Wei (ORCID: https://orcid.org/0000-0002-9583-1346)
- Weihong Liu (ORCID: https://orcid.org/0000-0002-0308-0259)
- Yilu Zhao (ORCID: https://orcid.org/0000-0002-2663-6926)
Institutions
- Chinese University of Hong Kong (HK)
- Harbin Institute of Technology (CN)
Publication Details
- Journal
- Materials Research Letters
- Published
- 2025-12-08
- DOI
- https://doi.org/10.1080/21663831.2025.2596923
- Citations
- 1
- Primary Topic
- Additive Manufacturing Materials and Processes
- Type
- article
- Field-Weighted Citation Impact
- 0.71