INFLUENCE OF CHROMIUM OXIDE LAYER ON SURFACE TRITIUM CONTAMINATION OF TYPE 316 STAINLESS STEEL

被引：11

作者：

Ozeki, Yohei ^{[1
]}

Hatano, Yuji ^{[1
]}

Taniguchi, Haruka ^{[1
]}

Matsuyama, Masao ^{[1
]}

机构：

[1] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama 9308555, Japan

来源：

FUSION SCIENCE AND TECHNOLOGY | 2011年 / 60卷 / 04期

关键词：

DECONTAMINATION; SORPTION; SS316; WATER;

D O I：

10.13182/FST11-A12716

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：

Sheet type specimens of type 316 stainless steel covered by Cr oxide layers were exposed to tritium gas at 300 degrees C together with the specimens covered by Fe-rich oxide layers and pure Fe specimens to compare tritium behaviors in oxide films with different Cr contents. Tritium concentration in the oxide layers decreased with increasing Cr content due to reduction in concentrations of hydroxyl species and adsorbed water. In addition, release rate of tritium from Cr oxide layers was larger than that from Fe-rich oxide layers. It was concluded that preparation of thin Cr oxide layer is effective to reduce surface tritium contamination of austenitic stainless steels.

引用

页码：1499 / 1502

页数：4

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