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Formation of nanophases in a Cu–Zn alloy under high current density electropulsing

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Abstract

The microstructure of samples before and after a high current density electropulsing treatment was characterized by using high-resolution transmission electron microscopy. It has been found that in the coarse-grained Cu–Zn alloy subjected to the electropulsing treatment, two nanophases were formed, α–Cu(Zn) and β′–(CuZn), the average grain size of which is about 11 nm. A possible mechanism for the formation of nanophases was proposed. The experimental results indicated that electropulsing, as an instantaneous high-energy input, plays an important role in the nonequilibrium microstructural changes in materials and serves as a potential processing approach to synthesize nanostructured materials.

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Authors and Affiliations

  1. Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110015, People's Republic of China

    W. Zhang, M. L. Sui, K. Y. Hu & D. X. Li

  2. International Center for Materials Physics, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110015, People's Republic of China

    X. N. Guo, G. H. He & B. L. Zhou

Authors
  1. W. Zhang
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  2. M. L. Sui
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  3. K. Y. Hu
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  4. D. X. Li
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  5. X. N. Guo
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  6. G. H. He
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  7. B. L. Zhou
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Correspondence to M. L. Sui.

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Zhang, W., Sui, M.L., Hu, K.Y. et al. Formation of nanophases in a Cu–Zn alloy under high current density electropulsing. Journal of Materials Research 15, 2065–2068 (2000). https://doi.org/10.1557/JMR.2000.0295

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  • DOI: https://doi.org/10.1557/JMR.2000.0295

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