Grain size effects on He bubbles distribution and evolution

doi:10.1016/j.jnucmat.2014.11.036

	Grain size effects on He bubbles distribution and evolution
	Wang, J.1,2,3; Gao, X.1; Gao, N.1; Wang, Z. G.1; Cui, M. H.1; Wei, K. F.1; Yao, C. F.1; Sun, J. R.1; Li, B. S.1; Zhu, Y. B.1
刊名	JOURNAL OF NUCLEAR MATERIALS
	2015-02-01
卷号	457 页码:182-185
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2014.11.036
文献子类	Article
英文摘要	Grain boundary and grain size effects on He bubble distribution and evolution were investigated by He implantation into nanometer-size-grained T91 obtained by Surface Mechanical Attrition Treatment (SMAT) and the conventional coarse-grained T91. It was found that bubbles in the nanometer-size-grained T91 were smaller than those in the conventional coarse-grained T91 in as-implanted case, and bubbles in the matrix of nanograins were undetectable while those at nanograin boundaries (GBs) coalesced and filled in GBs after heat treatment. These results suggested that the grain size of structural material should be larger than the mean free path of bubble's Brownian motion and/or denuded zone around GBs in order to prevent bubbles accumulation at GBs, and multiple instead of one type of defects should be introduced into structural materials to effectively reduce the susceptibility of materials to He embrittlement and improve the irradiation tolerance of structural materials. (C) 2014 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[U1232121]
WOS关键词	NANOSTRUCTURED FERRITIC ALLOY ; MECHANICAL ATTRITION TREATMENT ; HELIUM BUBBLES ; ION IRRADIATION ; RADIATION-DAMAGE ; STEELS ; BOUNDARIES ; METALS ; DPA
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000349169100024
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/50081]
专题	中国科学院近代物理研究所
通讯作者	Wang, Z. G.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, J.,Gao, X.,Gao, N.,et al. Grain size effects on He bubbles distribution and evolution[J]. JOURNAL OF NUCLEAR MATERIALS,2015,457:182-185.
APA	Wang, J..,Gao, X..,Gao, N..,Wang, Z. G..,Cui, M. H..,...&Xie, E. Q..(2015).Grain size effects on He bubbles distribution and evolution.JOURNAL OF NUCLEAR MATERIALS,457,182-185.
MLA	Wang, J.,et al."Grain size effects on He bubbles distribution and evolution".JOURNAL OF NUCLEAR MATERIALS 457(2015):182-185.