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has been cited by the following article:

• TITLE: Study on Helium Bubble Coalescence in Titanium with Dislocations

  AUTHORS: Baoling Zhang, Xue Su, Chongyang Li, Junwei Zhang

  KEYWORDS: Helium Bubble, Coalescence, Dislocation, Molecular Dynamics Simulation

  JOURNAL NAME: World Journal of Nuclear Science and Technology, Vol.11 No.2, April 1, 2021

  ABSTRACT: Dislocation and grain boundary have great influence on helium behavior in materials. In this paper, the helium bubble coalescence in titanium with dislocations was simulated using molecular dynamics method. The results show that, when the second helium bubble nucleates near the slip plane, it grows toward the first helium bubble which lies at the dislocation core till they coalesce with each other. However, it is not easy for the coalescence to occur if the two helium bubbles lie in different atomic layers in (001) plane. If the second helium bubble is nucleated on the side of the slip plane with full atomic layers, the second helium bubble growth could lead to the movement of the first helium bubble toward the other sides of the slip plane. The growth rate and direction of the second helium bubble are closely related to the pressure around it.