Abstract
In the present study, a DDD-FEM analysis is conducted on the dislocation behavior in the γ/γ' microstructure of Ni-based superalloys. Tensile/compressive stress is applied on the γ' precipitates in the FEM, in order to clarify the effect of internal stress due to the lattice misfit. The dislocation approaching the γ' precipitate is decelerated by the negative stress of γ', while that is accelerated by the positive stress. Detail observation on the distribution of shear stress suggests that the stress becomes negative near the γ/γ' interface, resulting in the repalsive force on the approaching dislocation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
