学術雑誌論文

学術雑誌論文

text

Computational Materials Science. 2023, 231, p. 112568

Morphology prediction of elastically interacting Zr hydride precipitates and cracks in α -Zr using atomistically informed Eshelby’s ellipsoidal inclusion

Ishii, Akio

Elsevier BV

英語

text

2023-10-21

https://doi.org/10.1016/j.commatsci.2023.112568

Ishii Akio. Morphology prediction of elastically interacting Zr hydride precipitates and cracks in α-Zr using atomistically informed Eshelby’s ellipsoidal inclusion. Computational Materials Science 231, 112568 (2023); https://doi.org/10.1016/j.commatsci.2023.112568.

We propose an atomistically informed Eshelby’s inclusion analysis to investigate the morphology of secondary phases, which elastically interacted with each other through their respective local strain fields. Using the proposed method, we predict the morphology of 𝛿-hydride precipitates and cracks, which interacted in the 𝛼–Zr matrix. Planar cracks nucleate along the basal-normal 𝛿-hydride disk. And at the crack tip, the prismaticnormal 𝛿-hydride disk also nucleates depending on the stress condition around the crack, constructing the hydride-crack network. The findings contribute to the understanding of the fracture mechanism of Zr alloys, such as delayed hydride cracking, which is caused by Zr hydride.

This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

92835

Morphology prediction of elastically interacting Zr hydride precipitates and cracks in α -Zr using atomistically informed Eshelby’s ellipsoidal inclusion

Ishii, Akio

Elsevier BV

英語

2023-10-21

Computational Materials Science

231

112568

https://doi.org/10.1016/j.commatsci.2023.112568

https://hdl.handle.net/11094/92835