Strain-induced abnormal grain growth of Fe foils

Published on Feb 5, 2021in Journal of Alloys and Compounds4.65
· DOI :10.1016/J.JALLCOM.2020.157390
Sunghwan Jin12
Estimated H-index: 12
(UNIST: Ulsan National Institute of Science and Technology),
Byungchul Kang5
Estimated H-index: 5
+ 3 AuthorsRodney S. Ruoff165
Estimated H-index: 165
Abstract Abnormal grain growth of polycrystalline iron (Fe) foil up to grains of 1 cm × 2.2 cm in size, is reported. Pre-strain generated by plastic deformation promoted the abnormal grain growth during post-strain annealing, resulting in large area regions close to single crystal within the foil. The number of nucleus/nuclei and maximum grain size for the abnormal grain growth were highly affected by the plastic deformation conditions as they cause different stored energies in the foils. These stored energies were estimated from the intragranular orientation spread using electron back scatter diffraction, and the relationship between this spread and the abnormal grain growth was investigated.
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