Novel Technique for Quantitative Measurement of Localized Stresses Near Dislocation Channel—Grain Boundary Interaction Sites in Irradiated Stainless Steel

  • D. C. JohnsonEmail author
  • G. S. Was
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


A process for quantitatively measuring the residual stress near dislocation channel—grain boundary interaction sites has been developed especially for irradiated stainless steel using High Resolution Electron Backscatter Diffraction (HREBSD). Tensile stress acting normal to the grain boundary at 15 different discontinuous channel—grain boundary sites were observed to be highly elevated, with peak stresses reaching ~2 GPa, which is roughly an order of magnitude greater than the stresses observed at sites where slip transfer occurred at the grain boundary. A clearly observable difference can be made between the stress profiles present at discontinuous and continuous channel—grain boundary interaction sites. This difference is consistent with the theory that high tensile stress at the grain boundary may be a key driving factor for the initiation of irradiation assisted stress corrosion cracks.


Irradiation assisted stress corrosion cracking Localized deformation High resolution electron backscatter diffraction Austenitic steel 



The authors would like to acknowledge Alexander Flick for his assistance conducting constant extension rate tests in the High Temperature Corrosion Laboratory at the University of Michigan as well as the staff of the University of Michigan Ion Beam Laboratory, Ovidiu Toader, Fabian Naab, Thomas Kubley, and Ethan Uberseder for assistance in performing proton irradiations. This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under grant DE-FG02-08ER46525.


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Department of Nuclear Energy and Radiological SciencesUniversity of MichiganAnn ArborUSA

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