Effect of Tritium and Dissolved Oxygen on Anodic Polarization of SUS304 Stainless Steel in Sulfuric Acid Solution
Effect of Tritium and Dissolved Oxygen on Anodic Polarization of SUS304 Stainless Steel in Sulfuric Acid Solution
复制标题
氚和溶解氧对SUS304不锈钢在硫酸溶液中阳极极化的影响
DOI：
10.1080/18811248.2011.9711773
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发表时间：
2011
影响因子：
1.2
通讯作者：
Toshihiko Yamanishi
中科院分区：
文献类型：
--
作者：
Makoto Oyaidzu;Kanetsugu Isobe;Takumi Hayashi;Toshihiko Yamanishi
由于可以预期不锈钢在氚化水中的外来腐蚀，因此在电解质中的不同浓度的氚和溶解氧（以下称为DO）下，在约5wt%硫酸溶液中进行SUS304不锈钢样品的阳极极化。即使在电解质中的氚浓度低至2.2 kBq cm−3时，也可以在DO的情况下观察到氚对钝化的抑制作用。随着氚浓度的增加，这种效应变得更加明显。有人认为，取决于氚浓度的抑制反应将与取决于DO浓度（以下简称[DO]）的自钝化竞争，因为发现在每个氚浓度下存在自钝化的阈值[DO]。
Since exotic corrosion of stainless steels in tritiated water can be expected, the anodic polarization of a SUS304 stainless steel sample in approximately 5 wt% sulfuric acid solution was performed at various concentrations of tritium and dissolved oxygen (hereafter DO) in the electrolyte. The inhibitory effect of tritium on the passivation could be observed with DO even at a tritium concentration in the electrolyte of as low as 2.2 kBq cm−3. This effect became more pronounced as the tritium concentration increased. It was suggested that the inhibitory reaction depending on tritium concentration would compete with the self-passivation depending on the DO concentration (hereafter [DO]), since it was found that there is a threshold [DO] for self-passivation at each tritium concentration.