Abstract
A crystal plasticity approach with a phenomenological
shear banding mechanism incorporated in a conventional
dislocation crystal plasticity model is presented. In the
developed framework, the hardening and softening
relations are considered both within and between the
deformation mechanisms. The study aims to increase the
understanding of the importance of hot rolling texture to
the shear banding propensity in martensitic steels. In
the single crystal simulations performed for selected
common rolling textures, it was found that shear band
activation and the magnitude of softening are dependent
on the initial orientation of the crystal. In general,
softening-related shear banding in single crystals was
shown to be well reproduced by the model at high plastic
strains and high strain rates.
Original language | English |
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Pages (from-to) | 5608-5615 |
Journal | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
Volume | 48 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2017 |
MoE publication type | A1 Journal article-refereed |
Keywords
- crystal orientation
- dislocations (crystals)
- hot rolling
- martensitic steel
- plasticity
- single crystals
- strain
- strain rate