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Metallurgical and Materials Transactions A

, Volume 50, Issue 1, pp 52–57 | Cite as

Deformation Accommodation at Triple Junctions in Columnar-Grained Nickel

  • Mingjie Li
  • David J. Duquette
  • Ying ChenEmail author
Communication
  • 118 Downloads

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.

Notes

This project is mainly supported by the RPI Knowledge and Innovation Program.

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2018

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringRensselaer Polytechnic InstituteTroyUSA

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