Cr precipitation in neutron irradiated industrial purity Fe-Cr model alloys

被引：105
作者：
Kuksenko, V.
Pareige, C. [1 ]
Pareige, P.
机构：
[1] Univ Rouen, Grp Phys Mat, Ave Univ,BP 12, F-76801 St Etienne Du Rouvray, France
来源：
JOURNAL OF NUCLEAR MATERIALS | 2013年 / 432卷 / 1-3期
关键词：
FERRITIC-MARTENSITIC ALLOYS; HEAVY-ION IRRADIATIONS; PRESSURE-VESSEL STEELS; CROSS-CUTTING RESEARCH; 3D ATOM-PROBE; COPPER PRECIPITATION; DAMAGE EVOLUTION; GENERATION-IV; THIN-FOILS; BEHAVIOR;
D O I：
10.1016/j.jnucmat.2012.07.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure of four neutron irradiated Fe-Cr model alloys of industrial purity (Fe-2.5%Cr, Fe-5%Cr, Fe-9%Cr and Fe-12%Cr) has been characterized by atom probe tomography (APT). Irradiation has been performed at 300 degrees C up to 0.6 dpa in MTR reactor. APT investigations confirmed the enhanced precipitation of alpha' clusters as these clusters have only been observed in supersaturated model alloys. In addition a nonexpected family of clusters has been revealed due to irradiation induced segregation of impurities: NiSiPCr-enriched clusters. They might be associated to defect clusters invisible by transmission electron microscopy (TEM). A quantitative description of these objects is presented in this paper and results are compared with TEM and SANS data of the literature obtained on the same model alloy. (c) 2012 Elsevier B.V. All rights reserved.
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收藏
页码：160 / 165
页数：6
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