Dynamic Void Growth and Shrinkage in Mg under Electron Irradiation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

  • W. Z. Xu
  • Y. F. Zhang
  • G. M. Cheng
  • W. W. Jian
  • P. C. Millett
  • C. C. Koch
  • S. N. Mathaudhu

Detail(s)

Original languageEnglish
Pages (from-to)176-183
Journal / PublicationMaterials Research Letters
Volume2
Issue number3
Online published1 Apr 2014
Publication statusPublished - 2014
Externally publishedYes

Link(s)

Abstract

We report in situ atomic-scale investigation of late-stage void evolution, including growth, coalescence and shrinkage, under electron irradiation. With increasing irradiation dose, the total volume of voids increased linearly, while the nucleation rate of new voids decreased slightly and the total number of voids decreased. Some voids continued to grow while others shrank to disappear, depending on the nature of their interactions with nearby self-interstitial loops. For the first time, surface diffusion of adatoms was observed to be largely responsible for the void coalescence and thickening. These findings provide fundamental understanding to help with the design and modeling of irradiation-resistant materials. © 2014 The Author(s). Published by Taylor & Francis.

Research Area(s)

  • Coalescence, Electron irradiation, Growth, Magnesium, Void

Citation Format(s)

Dynamic Void Growth and Shrinkage in Mg under Electron Irradiation. / Xu, W. Z.; Zhang, Y. F.; Cheng, G. M. et al.
In: Materials Research Letters, Vol. 2, No. 3, 2014, p. 176-183.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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