Abstract
We study plastic deformation at triple junctions in columnar-grained nickel, where there is no out-of-plane grain constraint, under tension. In addition to orientation and slip trace analysis, we map surface topography and in-plane strains. Several local accommodation modes are observed, including the activation of relatively compatible slip systems that deviate from single crystal responses, change in slip intensity, out-of-plane relative rotation between grains across grain boundaries, and changes in lattice rotation towards the triple junction.
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This project is mainly supported by the RPI Knowledge and Innovation Program.
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Manuscript submitted February 28, 2018.
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Li, M., Duquette, D.J. & Chen, Y. Deformation Accommodation at Triple Junctions in Columnar-Grained Nickel. Metall Mater Trans A 50, 52–57 (2019). https://doi.org/10.1007/s11661-018-4998-0
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DOI: https://doi.org/10.1007/s11661-018-4998-0