Tritium behavior at the interface of oxidized metal under high temperature water

为了了解核反应堆中氧化引发氚在钢或镍等金属中的渗透，研究了氘在高温高压重水中的行为。采用热解吸法和辉光放电元素光谱法分别测定了热重水氧化样品中元素的氘量和深度分布。结果发现，金属在氧化物处氧化过程中产生的氘气会引发氘渗入材料。金属界面。用镍作为防腐蚀金属，用镀金作为防渗透涂层，可以较有效地防止氘渗入金属。

Deuterium behavior into the metals soaked in pressurized high temperature heavy water has been investigated in order to understand the oxidation initiated tritium infiltration in the nuclear reactor such as steel or nickel. Deuterium amount and depth distribution of elements in samples oxidized in hot heavy water were measured by the thermal desorption method and a glow discharge optical elemental spectroscopy method, respectively. As the results, it was found that deuterium infiltration into the material would be initiated by the deuterium gas generated at the oxidation process of metal at the oxide. metal interface. Nickel as the anti corrosion metal and gold plating as the permeation reduction coating could be relatively effective to prevent deuterium infiltration into the metal.