Dataset: Anomalous strain-energy-driven macroscale translation of grains during nonisothermal annealing

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Published: 3 years ago Views: 455 Downloads: 150 DOI: 10.13011/m3-tnfb-4654 License: No license Size: 2.15 GB
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Anomalous strain-energy-driven macroscale translation of grains during nonisothermal annealing 6
  • Jiwoong Kang
  • Matthew Higgins
  • Guanglong Huang
  • David Montiel
  • Ning Lu
  • Yufeng Shen
  • Phil Staublin
  • Jun-Sang Park
  • Jonathan Almer
  • Peter Kenesei
  • Paul Sanders
  • Robert Suter
  • Katsuyo Thornton
  • Ashwin Shahani

We report a mode of grain growth, involving the macroscopic translation of grain centers during nonisothermal annealing. Through synchrotron high-energy x-ray diffraction microscopy, we find dissolution of semicoherent precipitates generates dislocations, thereby raising the stored strain energy within grains. The subsequent evolution of grains shows unexpected grain translations over length scales of 10–100 μm. Phase-field simulations reveal that such translations are not uncommon in strain-energy-driven grain growth, wherein different regions of a grain may grow and shrink simultaneously

National Science Foundation under Award No. DMR-2003719.

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