Environmental effects on irradiation creep behavior of highly purified V-4Cr-4Ti alloys (NIFS-Heats) irradiated by neutrons

被引：9
|
作者：
Fukumoto, K. [1 ]
Narui, M. [2 ]
Matsui, H. [2 ]
Nagasaka, T. [3 ]
Muroga, T. [3 ]
Li, M. [4 ]
Hoelzer, D. T. [4 ]
Zinkle, S. J. [4 ]
机构：
[1] Univ Fukui, Grad Sch Nucl Power & Energy Safety Engn, Fukui 9108507, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[3] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan
[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
来源：
JOURNAL OF NUCLEAR MATERIALS | 2009年 / 386-88卷
关键词：
BIAXIAL THERMAL CREEP; 700-DEGREES-C;
D O I：
10.1016/j.jnucmat.2008.12.180
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to investigate the effect of the environment on the irradiation creep properties of highly purified V-4Cr-4Ti alloys, neutron irradiation experiments with sodium-enclosed irradiation capsules in Joyo and lithium-enclosed irradiation capsules in HFIR-17J were carried out using pressurized creep tubes (PCTs). It was found that the creep strain rate exhibited a linear relationship with the effective stress up to 150 Mpa at 458 and 598 degrees C in the Joyo irradiation experiments. For HFIR-17J irradiation at 425 degrees C, the creep strain rate also exhibited a linear relationship with the effective stress up to 150 Mpa. The activation energy of the irradiation creep and irradiation creep stress factor were estimated to be 46 kJ/mol K and 1-2, respectively. No significant difference in the irradiation creep behavior between liquid-sodium and liquid-lithium environments could be seen. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：575 / 578
页数：4
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