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

页码：575 / 578

页数：4

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