[3L01-04] Chemical Compatibility of Materials 1

[3L03] Corrosion Issues of Cu-alloy toward DEMO Divertor

(3)Corrosion behavior of CuCrZr alloy in hydrogen-dissolved high temperature high pressure water environment

*Yen-Jui Huang¹, Motoki Nakajima¹, Naofumi Nakazato², Taisei Nemoto², Yu Seiriki², Takashi Nozawa¹, Hirotatsu Kishimoto² (1. QST, 2. Muroran IT)

Keywords:Diverter, Corrosion, Cu-alloy, High temperature pressurized water

The compatibility of Cu-alloy (CuCrZr) with high-temperature high-pressure water, and its corrosion behavior was evaluated. Static corrosion tests in hydrogen-dissolved water were conducted up to 500hr. Weight change of specimens was smaller than those in deaerated water. Specimen surface was sponge-like with crystals on surface.