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Effect of Cu on the Microstructure, Hardness and Tensile Property of 15 wt.%Mg2Si/Al-La Composites

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Abstract

The effect of different Cu contents (0~5%) on the microstructure and mechanical properties of 15wt.%Mg2Si/Al-La composite was investigated in the present work. The results show that Cu addition had a refining effect on the primary Mg2Si particles. The smallest particle size was acquired when 2% Cu was added. The UTS exhibited a parabolic tendency, which increased from 173 MPa to 227 MP by 31.21% and then decreased with further increasing Cu content. The UTS enhancement could be attributed to the appropriate content of Cu (2%) addition, which led to the formation of Cu-rich phases. When the Cu content was further increased, the UTS of the composite decreased for the coarsening of the Mg2Si particles and the increasing fraction of hard brittle phases.

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Acknowledgements

Thanks to the financial supports from the Scientific Research Fund project of Liaoning Education Department in 2021 (No. LJKZ0121), Research capacity cultivation Fund of Shenyang University of Technology (No. 200005742) and Enterprise Cooperation Projects (No. 2021-0-43-188).

Funding

This work was supported by Scientific Research Fund project of Liaoning Education Department in 2021 (No. LJKZ0121), Research capacity cultivation Fund of Shenyang University of Technology (No. 200005742) and Enterprise Cooperation Projects (No. 2021-0-43-188).

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  1. School of Materials Science and Engineering, Shenyang University of Technology, 111 Shenliao West Road, Shenyang, 110870, People’s Republic of China

    Tongyu Liu, Xue Zou, Chao Yang, Weihua Liu, Ying Pan & Yingmin Li

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Liu, T., Zou, X., Yang, C. et al. Effect of Cu on the Microstructure, Hardness and Tensile Property of 15 wt.%Mg2Si/Al-La Composites. Inter Metalcast 18, 1496–1507 (2024). https://doi.org/10.1007/s40962-023-01094-7

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