Reduction method of DBTT shift due to irradiation for reduced-activation ferritic/martensitic steels

被引：15
|
作者：
Wakai, E. [1 ]
Okubo, N. [1 ]
Ando, M. [1 ]
Yamamoto, T. [1 ]
Takada, F. [1 ]
机构：
[1] Japan Atom Energy Agcy, Res Grp Irradiat Field Mat, Div Fuels & Mat Engn, Sci & Engn Directorate, Tokai, Ibaraki 3191195, Japan
来源：
JOURNAL OF NUCLEAR MATERIALS | 2010年 / 398卷 / 1-3期
关键词：
MECHANICAL-PROPERTIES; F82H STEEL; MARTENSITIC STEELS; NEUTRON-IRRADIATION; HEAT-TREATMENT; BORON; BEHAVIOR; EMBRITTLEMENT; NITROGEN; TENSILE;
D O I：
10.1016/j.jnucmat.2009.10.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The method for reducing irradiation-induced DBTT shift of reduced-activation ferritic/martensitic steels was examined. F82H-LN (low nitrogen, 20 ppm), F82H+60 ppm11B+200 ppmN and F82H+60 ppm10B+200 ppmN steels tempered at 780 degrees C for 0.5 h were irradiated at 250 degrees C to 2 dpa, and the results for Charpy impact tests were analyzed. The upper shelf energy of F82H+B-11+N steel was hardly changed by the irradiation, and DBTT shift was very small. From our research, DBTT shift due to irradiation can be reduced by the control of tempered conditions before irradiation, and it is found to be furthermore reduced by impurity doping with 60 ppm(11)B and 200 ppmN to F82H steel. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：64 / 67
页数：4
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