Comparative study of He bubble formation in nanostructured reduced activation steel and its coarsen-grained counterpart

W. B. Liu; J. H. Zhang; Y. Z. Ji; L. D. Xia; H. P. Liu; D. Yun; C. H. He; C. Zhang; Z. G. Yang

doi:10.1016/j.jnucmat.2017.12.041

Comparative study of He bubble formation in nanostructured reduced activation steel and its coarsen-grained counterpart

W. B. Liu
, J. H. Zhang
, Y. Z. Ji
, L. D. Xia
, H. P. Liu
, D. Yun
, C. H. He
, C. Zhang
, Z. G. Yang

School of Energy and Power Engineering

Xi'an Jiaotong University
Pennsylvania State University
Tsinghua University
CAS - Institute of Modern Physics

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

High temperature (550 °C) He ions irradiation was performed on nanostructured (NS) and coarsen-grained (CG) reduced activation steel to investigate the effects of GBs/interfaces on the formation of bubbles during irradiation. Experimental results showed that He bubbles were preferentially trapped at dislocations and/or grain boundaries (GBs) for both of the samples. Void denuded zones (VDZs) were observed in the CG samples, while VDZs near GBs were unobvious in NS sample. However, both the average bubble size and the bubble density in peak damage region of the CG sample were significantly larger than that observed in the NS sample, which indicated that GBs play an important role during the irradiation, and the NS steel had better irradiation resistance than its CG counterpart.

Original language	English
Pages (from-to)	213-219
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	500
DOIs	https://doi.org/10.1016/j.jnucmat.2017.12.041
State	Published - Mar 2018

Keywords

Coarsen-grained materials
Grain boundary
He bubble
Nanostructured materials
Reduced activation steel

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10.1016/j.jnucmat.2017.12.041

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@article{8c2422905401448f92d20ce256be3563,

title = "Comparative study of He bubble formation in nanostructured reduced activation steel and its coarsen-grained counterpart",

abstract = "High temperature (550 °C) He ions irradiation was performed on nanostructured (NS) and coarsen-grained (CG) reduced activation steel to investigate the effects of GBs/interfaces on the formation of bubbles during irradiation. Experimental results showed that He bubbles were preferentially trapped at dislocations and/or grain boundaries (GBs) for both of the samples. Void denuded zones (VDZs) were observed in the CG samples, while VDZs near GBs were unobvious in NS sample. However, both the average bubble size and the bubble density in peak damage region of the CG sample were significantly larger than that observed in the NS sample, which indicated that GBs play an important role during the irradiation, and the NS steel had better irradiation resistance than its CG counterpart.",

keywords = "Coarsen-grained materials, Grain boundary, He bubble, Nanostructured materials, Reduced activation steel",

author = "Liu, \{W. B.\} and Zhang, \{J. H.\} and Ji, \{Y. Z.\} and Xia, \{L. D.\} and Liu, \{H. P.\} and D. Yun and He, \{C. H.\} and C. Zhang and Yang, \{Z. G.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = mar,

doi = "10.1016/j.jnucmat.2017.12.041",

language = "英语",

volume = "500",

pages = "213--219",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Comparative study of He bubble formation in nanostructured reduced activation steel and its coarsen-grained counterpart

AU - Liu, W. B.

AU - Zhang, J. H.

AU - Ji, Y. Z.

AU - Xia, L. D.

AU - Liu, H. P.

AU - Yun, D.

AU - He, C. H.

AU - Zhang, C.

AU - Yang, Z. G.

PY - 2018/3

Y1 - 2018/3

N2 - High temperature (550 °C) He ions irradiation was performed on nanostructured (NS) and coarsen-grained (CG) reduced activation steel to investigate the effects of GBs/interfaces on the formation of bubbles during irradiation. Experimental results showed that He bubbles were preferentially trapped at dislocations and/or grain boundaries (GBs) for both of the samples. Void denuded zones (VDZs) were observed in the CG samples, while VDZs near GBs were unobvious in NS sample. However, both the average bubble size and the bubble density in peak damage region of the CG sample were significantly larger than that observed in the NS sample, which indicated that GBs play an important role during the irradiation, and the NS steel had better irradiation resistance than its CG counterpart.

AB - High temperature (550 °C) He ions irradiation was performed on nanostructured (NS) and coarsen-grained (CG) reduced activation steel to investigate the effects of GBs/interfaces on the formation of bubbles during irradiation. Experimental results showed that He bubbles were preferentially trapped at dislocations and/or grain boundaries (GBs) for both of the samples. Void denuded zones (VDZs) were observed in the CG samples, while VDZs near GBs were unobvious in NS sample. However, both the average bubble size and the bubble density in peak damage region of the CG sample were significantly larger than that observed in the NS sample, which indicated that GBs play an important role during the irradiation, and the NS steel had better irradiation resistance than its CG counterpart.

KW - Coarsen-grained materials

KW - Grain boundary

KW - He bubble

KW - Nanostructured materials

KW - Reduced activation steel

UR - https://www.scopus.com/pages/publications/85039992092

U2 - 10.1016/j.jnucmat.2017.12.041

DO - 10.1016/j.jnucmat.2017.12.041

M3 - 文章

AN - SCOPUS:85039992092

SN - 0022-3115

VL - 500

SP - 213

EP - 219

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Comparative study of He bubble formation in nanostructured reduced activation steel and its coarsen-grained counterpart

Abstract

Keywords

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