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Lecture

Dislocation Evolution Model of Nano Indentation in connection with Hydrogen Embrittlement

Wednesday (26.09.2018)
15:00 - 15:15 S1/01 - A4
Part of:


An effort is made to specify the effect of hydrogen on mobility and nucleation of dislocations in Nano Indentation. Using phenomenological equations for dislocation nucleation, multiplication and transformation terms, the Orowan equation is used to connect development and multiplication of dislocations to plastic strain during nanoindentation. Several dislocation velocity and nucleation criteria are tested, the model is validated using existing nanoscale indentation data.

Speaker:
Jan Inge Meling
Norwegian University of Science and Technology NTNU
Additional Authors:
  • Prof. Dr. Afrooz Barnoush
    Norwegian University of Science and Technology NTNU