Shim, Jae-Hyeok Kwon, Sang Chul Kim, Whung Whoe Wirth, Brian D. 2024-01-21T00:34:15Z 2024-01-21T00:34:15Z 2021-09-02 2007-08-01 0022-3115 https://pubs.kist.re.kr/handle/201004/134209 The effect of a helium atom on the migration of self-interstitial dislocation loops with a Burgers vector 1/2 (1 1 1) in bcc Fe has been investigated using molecular statics and molecular dynamics simulations. It is found that an interstitial He atom hinders the migration and coalescence behavior of dislocation loops by strongly binding to the loop on the edge sites. An unstable interstitial He atom on the loop plane easily moves to the stable edge sites by interstitial diffusion. A substitutional He atom does not significantly disturb the migration of dislocation loops, showing weak binding. (c) 2007 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV HELIUM-VACANCY CLUSTERS COMPUTER-SIMULATION IRON Atomistic modeling of the interaction between self-interstitial dislocation loops and He in bcc Fe Article 10.1016/j.jnucmat.2007.03.005 1 JOURNAL OF NUCLEAR MATERIALS, v.367, pp.292 - 297 JOURNAL OF NUCLEAR MATERIALS 367 292 297 scie scopus 000249033000050 2-s2.0-34447575716 Materials Science, Multidisciplinary Nuclear Science & Technology Materials Science Nuclear Science & Technology Article; Proceedings Paper HELIUM-VACANCY CLUSTERS COMPUTER-SIMULATION IRON Radiation damage Dislocation loop He Reduced activation steel Molecular dynamics