The microstructure of neutron-irradiated Fe-Cr alloys: A small-angle neutron scattering study

被引：50
作者：
Heintze, C. [1 ]
Bergner, F. [1 ]
Ulbricht, A. [1 ]
Eckerlebe, H. [2 ]
机构：
[1] Forschungszentrum Dresden Rossendorf, D-01314 Dresden, Germany
[2] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany
来源：
JOURNAL OF NUCLEAR MATERIALS | 2011年 / 409卷 / 02期
关键词：
HEAVY-ION IRRADIATIONS; MARTENSITIC STEELS; DAMAGE EVOLUTION; THIN-FOILS; REACTORS; IRON;
D O I：
10.1016/j.jnucmat.2010.09.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Cr on the irradiation-induced microstructure of neutron-irradiated Fe-Cr alloys is not yet known in detail. Small-angle neutron scattering was applied in order to provide the characteristics of nm-sized defects averaged over macroscopic volumes. Results are reported for a set of Fe-Cr alloys of Cr levels of 2.5, 5, 9 and 12.5 at.%, irradiated at 300 degrees C up to neutron exposures of 0.6 and 1.5 dpa. We have found that the incoherent magnetic scattering of the unirradiated alloys exhibits a systematic variation with the Cr content and that there is an irradiation-induced increase of the coherent magnetic scattering for each of the irradiated conditions. The effect of Cr on size and type of irradiation-induced scatterers is discussed. For 12.5 at.%Cr, the scatterers are unambiguously identified as alpha' particles. For 2.5 and 5 at.%Cr, the scatterers are tentatively interpreted as clusters enriched with alloying Cr and impurity C. For 9 at.%Cr, a mixture of both kinds of scatterers explains the experimental findings. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：106 / 111
页数：6
相关论文
共 22 条
  • [1] FERROMAGNETISM IN IRON-CHROMIUM ALLOYS .2. NEUTRON-SCATTERING STUDIES
    ALDRED, AT
    RAINFORD, BD
    KOUVEL, JS
    HICKS, TJ
    [J]. PHYSICAL REVIEW B, 1976, 14 (01): : 228 - 234
  • [2] Small-angle neutron scattering study of neutron-irradiated iron and an iron-nickel alloy
    Bergner, F.
    Ulbricht, A.
    Hernandez-Mayoral, M.
    Pranzas, P. K.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2008, 374 (1-2) : 334 - 337
  • [3] Estimation of the solubility limit of Cr in Fe at 300 °C from small-angle neutron scattering in neutron-irradiated Fe-Cr alloys
    Bergner, F.
    Ulbricht, A.
    Heintze, C.
    [J]. SCRIPTA MATERIALIA, 2009, 61 (11) : 1060 - 1063
  • [4] User-friendly software for SANS data reduction
    Biemann, P
    Haese-Seiller, M
    Staron, P
    [J]. PHYSICA B, 2000, 276 : 156 - 157
  • [5] Materials research for fusion energy
    Cook, I
    [J]. NATURE MATERIALS, 2006, 5 (02) : 77 - 80
  • [6] Investigation of microstructural evolution under neutron irradiation in Eurofer97 steel by means of small-angle neutron scattering
    Coppola, R.
    Lindau, R.
    May, R. P.
    Moeslang, A.
    Valli, M.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2009, 386-88 : 195 - 198
  • [7] Microstructural investigation, using polarized neutron scattering, of a martensitic steel for fusion reactors
    Coppola, R
    Kampmann, R
    Magnani, M
    Staron, P
    [J]. ACTA MATERIALIA, 1998, 46 (15) : 5447 - 5456
  • [8] European cross-cutting research on structural materials for Generation IV and transmutation systems
    Fazio, C.
    Alamo, A.
    Almazouzi, A.
    De Grandis, S.
    Gomez-Briceno, D.
    Henry, J.
    Malerba, L.
    Rieth, M.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2009, 392 (02) : 316 - 323
  • [9] DETERMINATION OF PARTICLE-SIZE DISTRIBUTION-FUNCTIONS FROM SMALL-ANGLE SCATTERING DATA BY MEANS OF THE INDIRECT TRANSFORMATION METHOD
    GLATTER, O
    [J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1980, 13 (FEB) : 7 - 11
  • [10] Microstructural analysis of 9% Cr martensitic steels containing 0.5 at.% helium
    Henry, J
    Mathon, MH
    Jung, P
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2003, 318 : 249 - 259
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