Gas desorption properties of low-activation ferritic steel as a blanket or a vacuum vessel material

被引：9

作者：

Hirohata, Y ^{[1
]}

Suzuki, K ^{[1
]}

Hino, T ^{[1
]}

机构：

[1] Hokkaido Univ, Dept Nucl Engn, Kita Ku, Sapporo, Hokkaido 060, Japan

来源：

FUSION ENGINEERING AND DESIGN | 1998年 / 39-40卷

关键词：

D O I：

10.1016/S0920-3796(97)00170-1

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The gas desorption properties of low-activation ferritic steel (F82H) were evaluated by thermal desorption spectroscopy (TDS), and compared with those of austenitic steels (316SS and 316LSS). The major desorbed gas species of F82H were CO, H(2)O, CO(2) and H(2). The fraction of oxygen-containing species such as CO, CO(2) and H(2)O to the total outgassing amount was 98%. The gas desorption behavior was very similar to the case of 316SS. The gas desorption spectra for F82H show the required prebaking temperature becomes higher than 700 K. For the F82H sample exposed to atmosphere, the gas desorption properties were examined. As the time of exposure increase, desorption amounts of H(2)O and CO largely increased. This increase may be due to the corrosion in atmosphere. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：485 / 491

页数：7