中国低活化马氏体钢CLAM在液态锂铅中腐蚀的初步实验研究

Preliminary experimental study on the corrosion of China low activation martensitic steel in liquid lithium lead

液态金属锂铅包层是最具发展潜力的聚变堆包层之一,其首选结构材料为低活化铁素体/马氏体钢,而它与液态锂铅的相容性是聚变堆材料研究领域的关键问题之一。本文介绍中国低活化马氏体钢CLAM在液态金属锂铅回路DRAGON-1热对流工况下的实验情况及500 h 480℃下初步腐蚀实验结果,并与同样工况下316L奥氏体钢腐蚀结果进行了对比分析。结果显示CLAM钢与液态锂铅的相容性优于316L钢。

The liquid metal lithium lead （Lily Pb83） blanket is considered as one of the most promising fusion reactor blankets. The reduced activation ferritic-martensitic steel （RAFMs） is one of candidate structural materials and the compatibility of RAFMs with liquid LiPb is one of the key issues in fusion material research. The experiment on China low activation martensitic （CLAM） steel in the thermal convection LiPb loop DRAGON-1 was presented in this paper. The preliminary experimental results on CLAM steel after exposed in LiPb for 500 hours at 480℃ were discussed and compared with those for the samples of 316L austenitic stainless steel. The results show that the compatibility of CLAM steel with liquid LiPb is better than that of 316L steel.