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Article
Understanding the Effect of Grain Boundary Character on Dynamic Recrystallization in Stainless Steel 316L
Metallurgical and Materials Transactions A
  • Megan Beck, Boise State University
  • Michael Morse, Boise State University
  • Caleb Corolewski, Boise State University
  • Koyuki Fritchman, Boise State University
  • Chris Stifter, Boise State University
  • Callum Poole, Boise State University
  • Michael Hurley, Boise State University
  • Megan Frary, Boise State University
Document Type
Article
Publication Date
8-1-2017
DOI
http://dx.doi.org/10.1007/s11661-017-4133-7
Abstract

Dynamic recrystallization (DRX) occurs during high-temperature deformation in metals and alloys with low to medium stacking fault energies. Previous simulations and experimental research have shown the effect of temperature and grain size on DRX behavior, but not the effect of the grain boundary character distribution. To investigate the effects of the distribution of grain boundary types, experimental testing was performed on stainless steel 316L specimens with different initial special boundary fractions (SBF). This work was completed in conjunction with computer simulations that used a modified Monte Carlo method which allowed for the addition of anisotropic grain boundary energies using orientation data from electron backscatter diffraction (EBSD). The correlation of the experimental and simulation work allows for a better understanding of how the input parameters in the simulations correspond to what occurs experimentally. Results from both simulations and experiments showed that a higher fraction of so-called ‘‘special’’ boundaries (e.g., Σ3 twin boundaries) delayed the onset of recrystallization to larger strains and that it is energetically favorable for nuclei to form on triple junctions without these so-called ‘‘special’’ boundaries.

Citation Information
Megan Beck, Michael Morse, Caleb Corolewski, Koyuki Fritchman, et al.. "Understanding the Effect of Grain Boundary Character on Dynamic Recrystallization in Stainless Steel 316L" Metallurgical and Materials Transactions A (2017)
Available at: http://works.bepress.com/michael_hurley/22/