Abstract
The transport containers are important guarantees for the safety of radioactive materials transportation activities, which can resist vibration, shock, fire and other impacts. Radioactive materials transport packages have the characteristics of complex structure, difficult processing and high cost, especially spent fuel and high-level waste transport packages. Therefore, the economy should be fully considered during the service life. The transport container usually retains a large safety margin in the design stage, so that the service life of it can be appropriately extended through the regular safety performance evaluation, maintenance and repair, as well as the service performance evaluation. At present, some research institutions have carried out material aging research on container components and conducted performance tests on aging containers so as to quantitatively explore the influence of determined aging factors. On this basis, some users have also developed aging management and maintenance procedures for containers to delay the aging process. So that the purpose of prolonging the life of transport packages can be realized. In the work of extending the life of radioactive material transport packages, the research on material aging and aging management are the key points worth exploring and summarizing.
