Enhanced strength and toughness in boron nitride nanosheets/Ti composites through in-situ interfacial nano-TiBw manipulation

Ni Xiong, Hongmei Zhang*, Xingwang Cheng, Xiaonan Mu, Ke Feng, Hongqiang Duan, Yu Wang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

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摘要

Achieving intrinsic strengthening of boron nitride nanosheets (BNNSs) in Ti matrix composites was still an unsettled issue due to its severe and uncontrollable interface reaction. In the present study, high-performance BNNSs/Ti composites were fabricated by using the warm compaction (WC) technique and rapid heat treatment (HT) strategy on the basis of interfacial nano-TiBw design. The intrinsic structure of BNNSs was well-retained and nano-TiBw on partially reacted BNNSs led to a brilliant interface bonding and BNNSs intrinsic strengthening. Tensile tests revealed that 0.1 wt.%BNNSs/Ti composites exhibited the tensile strength (UTS) of 876 MPa (61 % higher than pure Ti) and the fracture elongation of 22.6 %, demonstrating the well-balanced property. By employing the in-situ TEM experiment, we solve an existing debate, uncovering the synergistic toughening effect from BNNSs and interfacial nano-TiBw which effectively inhibited the micro-cracks propagation on BNNSs and heterogeneous interface. This work paves a new way for developing high-performance BNNSs/Ti composites by reaction interface manipulation and underscores the importance of maintaining BNNSs intrinsic structure in the Ti matrix.

源语言英语
页(从-至)173-188
页数16
期刊Journal of Materials Science and Technology
219
DOI
出版状态已出版 - 1 6月 2025

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Xiong, N., Zhang, H., Cheng, X., Mu, X., Feng, K., Duan, H., & Wang, Y. (2025). Enhanced strength and toughness in boron nitride nanosheets/Ti composites through in-situ interfacial nano-TiBw manipulation. Journal of Materials Science and Technology, 219, 173-188. https://doi.org/10.1016/j.jmst.2024.07.048