DOI QR코드

DOI QR Code

저온 분사 공정에서 니켈이 코팅된 다이아몬드 적용을 통한 금속/다이아몬드 복합재료의 코팅성 향상

나현택;배규열;강기철;김형준;이창희
Na, Hyun-Taek;Bae, Gyu-Yeol;Kang, Ki-Cheol;Kim, Hyung-Jun;Lee, Chang-Hee

  • 발행 : 2008.12.31

초록

Generally, deposition mechanism of diamond particle is mainly embedding effect in the kinetic spray process. Accordingly, in spite of high cost, helium gas was employed as process gas to get high diamond fraction in the composite coating. In this study, the deposition behavior of bronze/diamond by kinetic spray process was compared using different process gas (helium and nitrogen). Bare (mean size of $5{\mu}m$, $20{\mu}m$) and nickel coated diamond (mean size of $26{\mu}m$) were deposited on Al 6061-T6 substrate with fixed process temperature and pressure. For comparison with experimental results, plastic deformation behavior of nickel layer was simulated by finite element analysis (using ABAQUS/Explicit 6.7-2). The size, broken ratio, and fraction of diamond in the composite coating were analyzed through scanning electron microscopy and image analysis method. The uniform distribution and deposition efficiency of diamond particles in the coating layer could be achieved by tailoring the physical properties of the feedstock.

키워드

Ni coated diamond;Bronze/diamond composite;Kinetic spraying;Particle flight velocity and plastic deformation

참고문헌

  1. J. Wu, H. Fang, S.H. Yoon, H.J. Kim, C. Lee, Appl. Surf. Sci., 252 (2005) 1368-1377 https://doi.org/10.1016/j.apsusc.2005.02.108
  2. G. Bae, Y. Xiong, S. Kumar, K. Kang, C. Lee, Acta Mater., 56 (2008) 4858-4868 https://doi.org/10.1016/j.actamat.2008.06.003
  3. H.J. Kim, J.H. Jang, C. Lee, J. Kor. Inst. Met. Mater., 45 (2007) 409-415
  4. R.C. Dykhuizen, M.F. Smith, J. Therm. Spray Technol., 7-2 (1998) 205-212
  5. A.P. Alkhimov, A.N. Paryrin, V.F. Kosarev, N.J. Nesterovich, M.M. Shuspanov, Gas-dynamic Spray Method for Applying a Coating, US Patent 5,302,414, (1994)
  6. T.H. Van Steenkistea, J.R. Smitha, R.E. Teetsa, J.J. Moleskia, D.W. Gorkiewicza, R.P. Tisona, D.R. Marantzb, K.A. Kowalskyb, W.L. Riggs IIc, P.H. Zajchowskid, B. Pilsnere, R.C. McCunef, K. J. Barnettg, Surf. Coat. Technol., 111-1 (1999) 62-71
  7. A.N. Paryrin, S.V. Klinkov, V.F. Kosarev, International Thermal Spray Conference and Exhibition ITSC 2003 Proceedings, (2003) 27
  8. W. Tillmann, E. Vogli, R. Rechlin, F.W. Bach, K. Mohwald, Z. Babiak, T. Rothardt, International Thermal Spray Conference and Exhibition ITSC 2004 Proceedings, (2004) 4-8
  9. H. Assadi, F. Gärtner, T. Stoltenhoff, H. Kreye, Acta Mater., 51 (2003) 4379-4394 https://doi.org/10.1016/S1359-6454(03)00274-X
  10. S. Shin, Effects of Parameters and Process Parameters on the Deposition Characteristics of a Hard/soft-particles Composite in Kinetic Spraying, MS Thesis Hanyang Univ. (2007)
  11. H. Assadi, F. Gärtner, T. Stoltenhoff, H. Kreye, Acta Mater., 51 (2003) 4379-4394 https://doi.org/10.1016/S1359-6454(03)00274-X
  12. S. Shin, Y. Xiong, Y. Ji, H.J. Kim, C. Lee, Appl. Surf. Sci., 254 (2008) 2269-2275 https://doi.org/10.1016/j.apsusc.2007.09.017