Q1: What materials suit molten salt reactor primary circuits?
A1: Hastelloy N resists fluoride salt corrosion at 700°C+. Graphite composites handle ultra-high temperatures. These advanced materials enable next-generation designs.
Q2: How are sodium-cooled reactor pipes protected?
A2: Double-wall designs with leak detection. Special cleaning prevents oxide plugging. These features ensure safe liquid metal handling.
Q3: What are the inspection challenges for Gen IV reactor pipes?
A3: High radiation levels limit access. Novel NDT methods are under development. These innovations will support future maintenance.
Q4: Why are gas-cooled reactor pipes uniquely designed?
A4: They must handle 900°C helium with impurities. Special coatings prevent material interactions. These requirements push material limits.
Q5: How are accident-tolerant materials tested for nuclear pipes?
A5: Simulated loss-of-coolant experiments. Long-term corrosion testing under radiation. These rigorous evaluations validate new alloys.
