Crystal plasticity simulations of haynes 230, an analysis of single crystal and polycrystalline experiments

Pietro Giovanni Luccarelli, Stefano Foletti, Garrett Pataky, Huseyin Sehitoglu

Research output: Contribution to journalConference article

Abstract

The behavior of a Ni-based superalloy, Haynes 230, was investigated at macro and micro scale level by means of a Crystal Plasticity (CP) model implemented in an open source Finite Element code, Warp3D. Single Crystal and polycrystalline specimens have been experimentally characterized with Digital Image Correlation (DIC) to identify the local strain field evolution. The results of single crystal’s tensile tests were used to obtain an estimation of the constitutive model parameters. Then a polycrystalline model, reproducing a tensile test with loading/unloading steps, was created starting from the microstructural data obtained with EBSD (electron back-scatter diffraction), which allowed the identification of grains geometry and orientations. The polycrystalline simulations were used to verify the prediction of the CP model over the experiment. The results of this study show that the comparison between experiments and numerical analysis is in good agreement on both global and local scale levels.

Original languageEnglish (US)
Pages (from-to)294-297
Number of pages4
JournalSolid State Phenomena
Volume258
DOIs
StatePublished - Jan 1 2017
Event8th International Conference on Materials Structure and Micromechanics of Fracture, MSMF8 - Brno, Czech Republic
Duration: Jul 27 2016Jul 29 2016

Keywords

  • 3D finite element analysis
  • Crystal plasticity
  • Nickel based alloy
  • Polycrystalline media
  • Single crystal
  • Warp3D

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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