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Materials Research Letters Volume 10, 2022 - Issue 10
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Original Reports

The role of in-situ nano-TiB2 particles in improving the printability of noncastable 2024Al alloy

Tengteng Suna State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaView further author information
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Hongze Wanga State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;d Department of Mechanical Engineering, University College London, London, UK;e Research Complex at Harwell, Harwell Campus, Oxfordshire, UKCorrespondence[email protected] [email protected] [email protected]
View further author information
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Zhenyang Gaoa State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaView further author information
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Yi Wua State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;c Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei, People’s Republic of ChinaView further author information
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Mingliang Wanga State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaView further author information
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Xinyuan Jina State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaView further author information
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Chu Lun Alex Leungd Department of Mechanical Engineering, University College London, London, UK;e Research Complex at Harwell, Harwell Campus, Oxfordshire, UKView further author information
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P.D. Leed Department of Mechanical Engineering, University College London, London, UK;e Research Complex at Harwell, Harwell Campus, Oxfordshire, UKView further author information
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Yanan Fuf Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, People’s Republic of ChinaView further author information
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Haowei Wanga State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, People’s Republic of China;b School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaView further author information
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Pages 656-665 | Received 14 Mar 2022, Published online: 30 May 2022
 
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Abstract

In-situ pre-decorated different content of TiB2 particle reinforced 2024 Al matrix composites (xTiB2/2024Al composite, x = 0, 1, 2, 4, 6, 8 wt.%) were printed by laser powder bed fusion (LPBF). A quantitative equation was established to quantify heterogeneous nucleating potency by TiB2 nanoparticles on the grain size of the LPBFed samples. Optimized mechanical properties were obtained in the as-printed 4TiB2/2024Al alloy which proved the feasibility of replacing the wrought part with the LPBFed one. This manuscript provides a method to determine the optimized content of TiB2 nanoparticles to change the noncastable material to the printable one.

GRAPHICAL ABSTRACT

IMPACT STATEMENT

This manuscript provides a method to determine the optimized TiB2 content to change the noncastable material to the printable one, and can potentially guide the introduction of many other nanoparticles.

Acknowledgements

This work is sponsored by National Natural Science Foundation of China (52075327 and 52004160), Shanghai Sailing Program (20YF1419200), Natural Science Foundation of Shanghai (20ZR1427500) and Major Science and Technology Project of Huaibei (Z2020001).This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 896742.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by National Natural Science Foundation of China: [Grant Number 52004160, 52075327].
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