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Continuous dynamic recrystallization of extruded NiAl polycrystals during the superplastic deformation process

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Abstract

The tensile deformation behavior and the associated mechanism of extruded Ni50Al50 polycrystals were systemically investigated. The superplastic deformation behavior was observed at certain conditions. The deformation microstructures consisted of subgrains, low-angle grains, and high-angle grains, meaning that a continuous dynamic recrystallization (CDRX) process was operating. This finding suggests that the relative balance between comparable work hardening (dislocation glide) and dynamic work softening (CDRX) results in the occurrence of superplastic deformation process.

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Authors and Affiliations

  1. the Department of Materials Engineering, Shenyang Institute of Aeronautical Engineering, 110034, Shenyang, People’s Republic of China

    Xinghao Du Ph.D. & Baolin Wu (Professor)

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  1. Xinghao Du Ph.D.
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  2. Baolin Wu
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Du, X., Wu, B. Continuous dynamic recrystallization of extruded NiAl polycrystals during the superplastic deformation process. Metall Mater Trans A 36, 3343–3351 (2005). https://doi.org/10.1007/s11661-005-0009-3

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  • DOI: https://doi.org/10.1007/s11661-005-0009-3

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