Dislocation loops in ultra-high purity Fe(Cr) alloys after 7.2 MeV proton irradiation

doi:10.1016/j.jnucmat.2018.02.042

	Dislocation loops in ultra-high purity Fe(Cr) alloys after 7.2 MeV proton irradiation
	Chen, J.1; Duval, F.2; Jung, P.1; Schaublin, R.3; Gao, N.4; Barthe, M. F.2
刊名	JOURNAL OF NUCLEAR MATERIALS
	2018-05-01
卷号	503 页码:81-90
关键词	Irradiation High purity Fe(Cr) alloys TEM observation Dislocation
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2018.02.042
英文摘要	Ultra-high purity Fe(Cr) alloys (from 0 wt% Cr to 14 wt% Cr) were 3D homogeneously irradiated by 0-7.2 MeV protons to 0.3 dpa at nominal temperatures from 270 degrees C to 500 degrees C. Microstructural changes were observed by transmission electron microscopy (TEM). The results showed that evolution of dislocation loops depends on the Cr content. Below 300 degrees C, large 1/2 a(0) < 111 > loops are dominating. Above 300 degrees C, a(0) < 100 > loops with a habit plane {100} appear. Loop sizes of both types are more or less the same. At temperatures from 310 degrees C to 400 degrees C, a(0) < 100 > loops form clusters with the same {100} habit plane as the one of the loops forming them. This indicates that < 100 > loops of the same variant start gliding under mutual elastic interaction. At 500 degrees C, dislocation loops form disc shaped clusters about 1000 nm in diameter and sitting on {111} and/or {100} planes in the pure Fe samples. Based on these observations a quantitative analysis of the dislocation loops configurations and their temperature dependence is made, leading to an understanding of the basic mechanisms of formation of these loops. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11675230] ; National Natural Science Foundation of China[11375242]
WOS关键词	FE-CR ALLOYS ; HEAVY-ION IRRADIATIONS ; NEUTRON-IRRADIATION ; ALPHA-IRON ; PURE IRON ; INTERSTITIAL CLUSTERS ; TEM CHARACTERIZATION ; DAMAGE EVOLUTION ; FERRITIC STEEL ; THIN-FOILS
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:000429498200009
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47505]
专题	中国科学院近代物理研究所
作者单位	1.Paul Scherrer Inst, Dept Nucl Energy & Safety, CH-5232 Villigen, Switzerland 2.Univ Orleans, CNRS, CEMHTI, 3A Rue Ferollerie, F-45071 Orleans 2, France 3.ETH, Sci Ctr Opt & Electron Microscopy, CH-8093 Zurich, Switzerland 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Chen, J.,Duval, F.,Jung, P.,et al. Dislocation loops in ultra-high purity Fe(Cr) alloys after 7.2 MeV proton irradiation[J]. JOURNAL OF NUCLEAR MATERIALS,2018,503:81-90.
APA	Chen, J.,Duval, F.,Jung, P.,Schaublin, R.,Gao, N.,&Barthe, M. F..(2018).Dislocation loops in ultra-high purity Fe(Cr) alloys after 7.2 MeV proton irradiation.JOURNAL OF NUCLEAR MATERIALS,503,81-90.
MLA	Chen, J.,et al."Dislocation loops in ultra-high purity Fe(Cr) alloys after 7.2 MeV proton irradiation".JOURNAL OF NUCLEAR MATERIALS 503(2018):81-90.