Stresses at grain boundaries: The maximum incompatibility stress in an infinitely extended elastic bicrystal under uniaxial loading

Liu, K.; Sluiter, M.H.F.

doi:10.1016/j.scriptamat.2023.115570

Stresses at grain boundaries

Title

Stresses at grain boundaries: The maximum incompatibility stress in an infinitely extended elastic bicrystal under uniaxial loading

Author

Liu, K. (TU Delft Team Marcel Sluiter)
Sluiter, M.H.F. (TU Delft Team Marcel Sluiter; Universiteit Gent)

Date

2023

Abstract

In a material under stress, grain boundaries may give rise to stress discontinuities. Stress localization is crucial to materials' behavior such as segregation, precipitation, and void nucleation. Here, the stress state at a grain boundary perpendicular to a uniaxial external stress is studied systematically. The grain boundary with the most extreme stress discontinuity is determined for cubic materials within the elastic limit for a bicrystal model. Additionally, grain boundaries with negligible stress discontinuity are identified. The influence of the elastic tensor components, C₁₁, C₁₂, and C₄₄, and grain orientation is studied quantitatively.

Subject

Anisotropy
Grain boundary
Incompatibility stress
Orientation
Texture

To reference this document use:

http://resolver.tudelft.nl/uuid:b40bad58-614c-41f4-8660-21a56ade6fb6

DOI

https://doi.org/10.1016/j.scriptamat.2023.115570

ISSN

1359-6462

Source

Scripta Materialia, 234

Part of collection

Institutional Repository