摘要
采用增重法和电化学方法分别研究了金属铀表面经CO处理后的抗热氧化腐蚀能力和抗化学介质腐蚀的能力。结果表明 :金属铀表面经CO处理后的抗氧化能力有所提高 ,抛物线氧化阶段其氧化速率比未处理样品的氧化速率低 2 5 %~ 60 % ;电化学研究表明 :金属铀表面经CO处理后 ,其抗化学介质腐蚀的能力增强 ;在实验所用CO剂量范围内 。
In order to develop the corrosion resistance of metallic uranium, carbon monoxide (CO) was used to react with fresh uranium in a sealed vessel at different conditions, the effect of CO on uranium was investigated using the weight gain method and the electrochemical measurement to evaluate the oxidation resistance of uranium in dry air at 70℃ and the electrochemical corrosion resistance in solution of 14 mmol/L Cl - respectively. The result indicated that the oxidation resistance in dry air at 70℃ is improved after reaction of uranium with CO, and its oxidation rate is 25%~60% lower than that of fresh uranium at initial stage of oxidation; The electrochernical measurement demonstrated the electrochernical corrosion resistance in solution of 14 mmol/L Cl - is also enhanced. In addition, corrosion resistance of uranium increases as the dose of CO increases in the experimental range.
出处
《材料保护》
CAS
CSCD
北大核心
2001年第10期13-14,共2页
Materials Protection