Abstract
In September 2014, when core PIT in QF1, Fuel manager found some yellow settling matter around the nozzle of FA guide tube. The rod cluster control assembly (referred to as RCCA) had slung up for visual inspection in 1KX, there were more corrosion products found on the RCCA rods’ surface. When wiped with absorbent cotton cloth, they were disappeared. Then manager inspected backup RCCAs (include backup black control rod assembly and backup gray control rod assembly) stored in the new fuel storage rack (Dry Storage), Φ0.5–Φ3 mm rust-colored flecks were found on some RCCA rods’ surface with irregular distribution. Fuel manager analyzed several kinds of aspects those maybe the cause of RCCA nitriding tube surface corrosion, including raw material, machining, storage and application environment, analysis of the sensitive source, and he also dis some tests, drew a conclusion and gave the suggestion about how to reduce the surface corrosion of control rod nitriding tube.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Zhuzu Chang, Xu Wen, Wang hong. Carburizing and nitriding heat treatment new process at home and abroad (III) [J] heat treatment technology and equipment, 2013, 34 (6): 1–9
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer Science+Business Media Singapore
About this paper
Cite this paper
Li, L. (2017). Surface Corrosion Analysis of QF Control Rod Nitriding Tube. In: Jiang, H. (eds) Proceedings of The 20th Pacific Basin Nuclear Conference. PBNC 2016. Springer, Singapore. https://doi.org/10.1007/978-981-10-2317-0_22
Download citation
DOI: https://doi.org/10.1007/978-981-10-2317-0_22
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-2316-3
Online ISBN: 978-981-10-2317-0
eBook Packages: EnergyEnergy (R0)