A steam generator tube of a nuclear power plant is damaged by a fretting phenomenon caused by flow induced vibrations (FIV). In this work, the surface of the tube was coated with CrN or TiN as a measure to improve performance of the fretting wear resistance. Fretting wear regime was classified by determining a phase difference between friction and relative displacement signals and contact characteristics were analyzed. As a result, coating increased the friction coefficient. At a lower load, contact condition shifted from gross slip to stick slip.
- Tribology Division
The Fretting Wear Characteristics of CrN and TiN Coating on Steam Generator Tube
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Kim, J, Choi, JH, & Lee, Y. "The Fretting Wear Characteristics of CrN and TiN Coating on Steam Generator Tube." Proceedings of the STLE/ASME 2010 International Joint Tribology Conference. STLE/ASME 2010 International Joint Tribology Conference. San Francisco, California, USA. October 17–20, 2010. pp. 57-58. ASME. https://doi.org/10.1115/IJTC2010-41147
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