Corrosion characteristics of reduced activation ferritic steel, JLF-1 (8.92Cr-2W) in molten salts Flibe and Flinak

被引：73

作者：

Kondo, Masatoshi ^{[1
,2
]}

Nagasaka, Takuya ^{[2
]}

Xu, Qi ^{[2
]}

Muroga, Takeo ^{[2
]}

Sagara, Akio ^{[2
]}

Noda, Nobuaki

Ninomiya, Daisuke ^{[3
]}

Nagura, Masaru ^{[3
]}

Suzuki, Akihiro ^{[3
]}

Terai, Takayuki ^{[3
]}

Fujii, Naoki ^{[4
]}

机构：

[1] Natl Inst Fus Sci, Fus Engn Res Ctr, Gifu 5025292, Japan

[2] Grad Univ Adv Studies, Gifu, Japan

[3] Univ Tokyo, Tokyo, Japan

[4] Biko Chem Co, Koube, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2009年 / 84卷 / 7-11期

关键词：

Corrosion; Flibe; Flinak; Fluoridation; Blanket; BREEDER; LI2BEF4;

D O I：

10.1016/j.fusengdes.2009.02.046

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：

Static corrosion tests were performed in molten salts, LiF-BeF2 (Flibe) and LiF-NaF-KF (Flinak), at 500 degrees C and 600 degrees C for 1000 h. The purpose is to investigate the corrosion characteristics of reduced activation ferritic steels, JLF-1 (8.92Cr-2W) in the fluids. The concentration of hydrogen fluoride (HF) in the fluids was measured by slurry pH titration method before and after the exposure. The HF concentration determined the fluoridation potential. The corrosion was mainly caused by dissolution of Fe and Cr into the fluids due to fluoridation and/or electrochemical corrosion. Carbon on the surface might be dissolved into the fluids due to the corrosion, and this resulted to the decrease of carbide on the surface. The corrosion depth of the JLF-1 specimen, which was obtained from the weight losses, was 0.637 mu m in Flibe at 600 degrees C and 6.73 mu m in Flinak at 600 degrees C. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1081 / 1085

页数：5

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