介绍了HFETR压力壳辐照监督试验的情况及其结果。试验结果表明:经～3.3×10~(20)n/cm~2辐照后,焊缝的辐照脆化效应小于热影响区,而热影响区又小于母材;从辐照脆化的角度上讲,HFETR压力壳在现行的运行工况下,在设计寿期内,其焊缝、母材和热影响区的塑、韧性还有一定的安全余量。 Introduced the HFETR pressure shell radiation supervision test situation and the results. The experimental results show that the radiation embrittlement effect of the weld is smaller than that of the heat affected zone and the heat affected zone is smaller than that of the base metal after irradiation of ~3.3 × 10 ~ (20) n / cm ~ 2. In perspective, HFETR pressure shell in the current operating conditions, the design life, the weld, base metal and heat affected zone of plastic, toughness, there is a certain safety margin.