In situ TEM and multiscale study of dislocation loop formation in the vicinity of a grain boundary

Preferential formation of dislocation loops near a grain boundary (GB) in pure magnesium was observed under in-situ TEM 200 KV electron irradiation at 300 K. These loops are vacancy in nature. A rate-theory-based model is presented to explain this observation. Specifically, the model considered an i...

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Veröffentlicht in:	Journal of nuclear materials 2020-01, Vol.528, p.151872, Article 151872
Hauptverfasser:	Dong, Qingshan, Saidi, Peyman, Béland, Laurent K., Yao, Zhongwen, Dai, Cong, Daymond, Mark R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Crystal defects Dislocation Dislocation loops Electron irradiation Finite difference method Finite difference methods Free surfaces Grain boundaries Grain boundary Irradiation Magnesium Molecular dynamics Multiscale analysis Radiation Vacancies
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