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Influence of aging treatment on mechanical properties of CNT/Al–Cu–Mg rolled composites

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Abstract

Influence of aging treatment on mechanical properties was investigated in the CNT/Al–Cu–Mg rolled composites. The tensile strength of composites was strongly dependent on the aging annealing treatment, and stronger aging effect was observed in the composites compared with matrix alloy. The ultimate tensile strength was highest in the CNT/Al–Cu–Mg composites with peak-aging treatment, however, it sharply decreased when samples were over-aged. In addition to the load transfer and grain refinement, CNTs addition introduced strong back stress, and the aging nanoprecipitation strengthening promoted the strain hardening capability, which both significantly improved the ultimate tensile strength of composites.

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Acknowledgments

This work was financial supported by the Natural Science Foundation of China (Nos. 51671130, 51871149), National Postdoctoral Program for Innovative Talents (No. BX201700148), the Innovation Foundation of Shanghai Aerospace Science and Technology (No. SAST2018-064), Shanghai Science & Technology Committee (Nos. 17ZR1441500, 19ZR1474900), and GuangDong Basic and Applied Basic Research Foundation (No. 2020A1515110134). Dr. Shuyan Zhang and Peng Zhang also acknowledge the support from the Program for Guangdong Introducing Innovative and Entrepreneurial Teams (No. 2016ZT06G025).

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Authors and Affiliations

  1. State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China

    Chao Yuan, Zhiming Zhang, Zhanqiu Tan, Genlian Fan & Zhiqiang Li

  2. Centre of Excellence for Advanced Materials, Dongguan, 523808, Guangdong, China

    Chao Yuan, Shuyan Zhang & Peng Zhang

  3. Shanghai Aerospace Equipments Manufacturer, Shanghai, 200245, China

    Tongliang Du & Ying Li

Authors
  1. Chao Yuan
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  2. Zhiming Zhang
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  3. Tongliang Du
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  4. Ying Li
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  5. Shuyan Zhang
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  6. Zhanqiu Tan
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  7. Genlian Fan
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  8. Peng Zhang
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  9. Zhiqiang Li
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Correspondence to Zhanqiu Tan or Zhiqiang Li.

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Yuan, C., Zhang, Z., Du, T. et al. Influence of aging treatment on mechanical properties of CNT/Al–Cu–Mg rolled composites. MRS Communications 11, 249–255 (2021). https://doi.org/10.1557/s43579-021-00044-w

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  • DOI: https://doi.org/10.1557/s43579-021-00044-w

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