The design of waste packages currently proposed for YMP is highly conservative. The candidate materials of construction of the waste packages and drip shields while highly corrosion resistant are extremely expensive and components made from these materials will require complex and expensive fabrication methods to assure their integrity. A proposed, second generation operating concept and waste package design, is intended to permit more efficient and less costly operation of the repository while maintaining waste package integrity. Major reductions in waste package costs can be realized by increasing the number of fuel assemblies stored in each waste package, eliminating the reference titanium drip shield and fabricating the outer container from low alloy “weathering” steels. These steels have outstanding resistance to general corrosion and are localized corrosion.
Corrosion and anti-corrosives; Nevada – Yucca Mountain; Radioactive waste canisters – Design and construction; Radioactive waste repositories
Materials Science and Engineering | Nuclear Engineering
Second Generation Waste Package Design Study.
Available at: https://digitalscholarship.unlv.edu/yucca_mtn_pubs/129