Chinese Physics B, Volume. 29, Issue 9, (2020)
Size effect of He clusters on the interactions with self-interstitial tungsten atoms at different temperatures
The behaviors of helium clusters and self-interstitial tungsten atoms at different temperatures are investigated with the molecular dynamics method. The self-interstitial tungsten atoms prefer to form crowdions which can tightly bind the helium cluster at low temperature. The crowdion can change its position around the helium cluster by rotating and slipping at medium temperatures, which leads to formation of combined crowdions or dislocation loop locating at one side of a helium cluster. The combined crowdions or dislocation loop even separates from the helium cluster at high temperature. It is found that a big helium cluster is more stable and its interaction with crowdions or dislocation loop is stronger.
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Jinlong Wang, Wenqiang Dang, Daping Liu, Zhichao Guo. Size effect of He clusters on the interactions with self-interstitial tungsten atoms at different temperatures[J]. Chinese Physics B, 2020, 29(9):
Received: Mar. 31, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Wang Jinlong (530262320@qq.com)