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Dissociated prismatic loop punching by bubble growth in FCC metals
Materials performance can be significantly degraded due to bubble generation. In this work, the bubble growth process is elaborated in Cu by atomistic modeling to bridge the gap of experimental observations. Upon continuous He implantation, bubble growth is accommodated first by nucleation of disloc...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8213783/ https://www.ncbi.nlm.nih.gov/pubmed/34145305 http://dx.doi.org/10.1038/s41598-021-92219-7 |
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author | Jin, Miaomiao Gao, Yipeng Zhang, Yongfeng Jiang, Chao Gan, Jian |
author_facet | Jin, Miaomiao Gao, Yipeng Zhang, Yongfeng Jiang, Chao Gan, Jian |
author_sort | Jin, Miaomiao |
collection | PubMed |
description | Materials performance can be significantly degraded due to bubble generation. In this work, the bubble growth process is elaborated in Cu by atomistic modeling to bridge the gap of experimental observations. Upon continuous He implantation, bubble growth is accommodated first by nucleation of dislocation network from bubble surface, then formation of dissociated prismatic dislocation loop (DPDL), and final DPDL emission in [Formula: see text] directions. As the DPDL is found capable of collecting He atoms, this process is likely to assist the formation of self-organized bubble superlattice, which has been reported from experiments. Moreover, the pressurized bubble in solid state manifests the shape of an imperfect octahedron, built by Cu [Formula: see text] surfaces, consistent with experiments. These atomistic details integrating experimental work fill the gap of mechanistic understanding of athermal bubble growth in Cu. Importantly, by associating with nanoindentation testings, DPDL punching by bubble growth arguably applies to various FCC (face-centered cubic) metals such as Au, Ag, Ni, and Al. |
format | Online Article Text |
id | pubmed-8213783 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82137832021-06-22 Dissociated prismatic loop punching by bubble growth in FCC metals Jin, Miaomiao Gao, Yipeng Zhang, Yongfeng Jiang, Chao Gan, Jian Sci Rep Article Materials performance can be significantly degraded due to bubble generation. In this work, the bubble growth process is elaborated in Cu by atomistic modeling to bridge the gap of experimental observations. Upon continuous He implantation, bubble growth is accommodated first by nucleation of dislocation network from bubble surface, then formation of dissociated prismatic dislocation loop (DPDL), and final DPDL emission in [Formula: see text] directions. As the DPDL is found capable of collecting He atoms, this process is likely to assist the formation of self-organized bubble superlattice, which has been reported from experiments. Moreover, the pressurized bubble in solid state manifests the shape of an imperfect octahedron, built by Cu [Formula: see text] surfaces, consistent with experiments. These atomistic details integrating experimental work fill the gap of mechanistic understanding of athermal bubble growth in Cu. Importantly, by associating with nanoindentation testings, DPDL punching by bubble growth arguably applies to various FCC (face-centered cubic) metals such as Au, Ag, Ni, and Al. Nature Publishing Group UK 2021-06-18 /pmc/articles/PMC8213783/ /pubmed/34145305 http://dx.doi.org/10.1038/s41598-021-92219-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Jin, Miaomiao Gao, Yipeng Zhang, Yongfeng Jiang, Chao Gan, Jian Dissociated prismatic loop punching by bubble growth in FCC metals |
title | Dissociated prismatic loop punching by bubble growth in FCC metals |
title_full | Dissociated prismatic loop punching by bubble growth in FCC metals |
title_fullStr | Dissociated prismatic loop punching by bubble growth in FCC metals |
title_full_unstemmed | Dissociated prismatic loop punching by bubble growth in FCC metals |
title_short | Dissociated prismatic loop punching by bubble growth in FCC metals |
title_sort | dissociated prismatic loop punching by bubble growth in fcc metals |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8213783/ https://www.ncbi.nlm.nih.gov/pubmed/34145305 http://dx.doi.org/10.1038/s41598-021-92219-7 |
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