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KSTLE international journal v.10 no.1/2, 2009년, pp.33 - 36  

The Effect of TiN and CrN Coatings on the Fretting Wear of Tubes against Supports in a Nuclear Steam Generators

Park, Dong-Shin    (School of Mechanical Engineering, Sungkyunkwan University   ); Park, Jung-Min    (School of Mechanical Engineering, Sungkyunkwan University   ); Kim, Jin-Seon    (School of Mechanical Engineering, Sungkyunkwan University   ); Lee, Young-Ze    (School of Mechanical Engineering, Sungkyunkwan University  );
  • 초록

    The nuclear steam generator is composed of a bundle of tubes. The length of these tubes is very long, but their diameter is small. Fluid exists inside of the steam generator and its flow causes vibration, therefore these tubes are supported by anti-vibration bars. The wear damage due to the vibration is known as fretting wear, which should be minimized to ensure the safety of the plants. Research needs to be done about decreasing the amount of fretting wear. Hard coatings have proven to be very effective in reducing the amount of wear. The commercial coatings of TiN and CrN have excellent wear resistance and are used to protect the Inconel tube from fretting wear. The tube-on-flat type tester was used for conducting the fretting wear tests. It was found that the wear amounts of the coated tubes decreased depending on the coating thickness. CrN was found to be very effective in reducing the wear, while the wear amounts were dependent on the coating thickness in the case of TiN and a thick coating of TiN was very effective on wear resistance.


  • 주제어

    Coated tube .   fretting wear .   steam generator tube .   wear coefficient.  

  • 참고문헌 (9)

    1. C.W. Cho, Y.Z. Lee, Wear 254, 383, 2003 
    2. K. Holmberg, A. Matthews, Coatings Tribology, Elsevier,172, 1994 
    3. S.H. Jeong, C.Y. Park, Y.Z. Lee, Key Engineering Materials 297-300, 1412, 2005 
    4. O. Vingsbo, M. Soderberg, Wear 126, 131, 1998 
    5. E.I. Meletis, A. Erdemir, G.R. Fenske, Surf. Coat. Technol.73, 39, 1995 
    6. B. Bhushan, B.K. Gupta, Handbook of Tribology, McGraw-Hill, 9.1, 1991 
    7. P.L. Ko, H. Basista, J. of Pressure Vessel Technology 106, 1984 
    8. A. Erdemir, C. Bindal, J. Pagan, P. Wilbur, Surf. Coat.Technol. 76-77, 559, 1995 
    9. C.E. Taylor, M.J. Pettigrew, J. of Pressure Vessel Technology 120, 283, 1998 

 저자의 다른 논문

  • 박동신 (1)

    1. 2003 "미끄럼운동시 TiN코팅볼과 스틸디스크의 미끄럼접촉면에 형성되는 산화막의 영향을 고려한 마찰천이선도 작성에 대한 연구" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A 27 (3): 335~342    
  • Park, Jung-Min (1)

  • 김진선 (3)

  • 이영제 (43)

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