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Effect of the Addition of Trace TiB2 Particles on the Microstructure and Properties of SLM-Formed AlSi10Mg: Effect of the Addition of Trace TiB2 Particles on the Microstructure and Properties of SLM-Formed AlSi10Mg: Zhao, Jiang, Yang, Lin, Y. Zeng, Li, Y. Wang, G. Wang, L. Zeng, Hong, and Zhang

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Title: Effect of the Addition of Trace TiB2 Particles on the Microstructure and Properties of SLM-Formed AlSi10Mg: Effect of the Addition of Trace TiB2 Particles on the Microstructure and Properties of SLM-Formed AlSi10Mg: Zhao, Jiang, Yang, Lin, Y. Zeng, Li, Y. Wang, G. Wang, L. Zeng, Hong, and Zhang
Authors: Zhao, Yuying1 (AUTHOR), Jiang, Lihong1 (AUTHOR), Yang, Qilin2 (AUTHOR), Lin, Xiaoying3 (AUTHOR), Zeng, Yida1 (AUTHOR) zyd_welding@163.com, Li, Zhiyong4 (AUTHOR), Wang, Yan4 (AUTHOR), Wang, Guangping4 (AUTHOR), Zeng, Longfei4 (AUTHOR), Hong, Xin4 (AUTHOR), Zhang, Youfu4 (AUTHOR)
Source: JOM: The Journal of The Minerals, Metals & Materials Society (TMS). May2025, Vol. 77 Issue 5, p3694-3706. 13p.
Subjects: Optical microscopes, Selective laser melting, Crystal grain boundaries, Microhardness testing, Energy density
Abstract: Nearly complete-density AlSi10Mg/TiB2 composites were successfully prepared using selective laser melting technology by adding 3 wt.% reinforcement and optimizing the parameters. Microstructure characterization and a microhardness test were conducted on the formed samples. As the laser energy density increased, the resulting density initially rose, reached a peak, and then declined (the highest peak value was 99.22%). Nearly fully dense specimens were eventually obtained. X-ray diffraction results showed that the increase in laser energy density reduced the interplanar spacing, and abundant Si atoms were dissolved to cause lattice distortion. Optical microscope and scanning electron microscope observations revealed that the microstructure of the matrix was fine and that a limited amount of Si particles precipitated from the grain boundaries. Moreover, the surface of the TiB2 reinforcement was smooth, and the TiB2 particles were uniformly distributed. The increase in microhardness may be ascribed to the combined effects of dislocation strengthening, fine-grain and Orowan strengthening, and load transfer. [ABSTRACT FROM AUTHOR]
Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Effect of the Addition of Trace TiB<subscript>2</subscript> Particles on the Microstructure and Properties of SLM-Formed AlSi10Mg: Effect of the Addition of Trace TiB<subscript>2</subscript> Particles on the Microstructure and Properties of SLM-Formed AlSi10Mg: Zhao, Jiang, Yang, Lin, Y. Zeng, Li, Y. Wang, G. Wang, L. Zeng, Hong, and Zhang
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  Data: Nearly complete-density AlSi10Mg/TiB2 composites were successfully prepared using selective laser melting technology by adding 3 wt.% reinforcement and optimizing the parameters. Microstructure characterization and a microhardness test were conducted on the formed samples. As the laser energy density increased, the resulting density initially rose, reached a peak, and then declined (the highest peak value was 99.22%). Nearly fully dense specimens were eventually obtained. X-ray diffraction results showed that the increase in laser energy density reduced the interplanar spacing, and abundant Si atoms were dissolved to cause lattice distortion. Optical microscope and scanning electron microscope observations revealed that the microstructure of the matrix was fine and that a limited amount of Si particles precipitated from the grain boundaries. Moreover, the surface of the TiB2 reinforcement was smooth, and the TiB2 particles were uniformly distributed. The increase in microhardness may be ascribed to the combined effects of dislocation strengthening, fine-grain and Orowan strengthening, and load transfer. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Selective laser melting
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      – SubjectFull: Crystal grain boundaries
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